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Pathology Laboratory Final > Lab > Flashcards

Lab Flashcards

1
Q

Two Casues Hyperparathyroidism of Malignancy

A

Lymphoma

Apocrine Gland Adenocarcinoma

*Neoplasms Producing Parathyroid Related Hormone. This Only happens in Dogs, not in Cats

*If we are Dealing with a Dog case, and has a Lesion like this and Hypercalcemia, what would the Parathyroid Glands look Like? Normal to Small because of Feedback Inhibition

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2
Q

What is the Etiology of this Tape Worm Found in the Cecum of a Horse that can Lead to Intussusception in Heavy infestation

A

Anoplocephala Perfoliata

*Hypertrophy of the Wall of the Illeum- Illeal Cecal Valve Obstruction by Anoplocephala

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2
Q

Kidney from a Cat, with Raised Multifocal to Coalescing areas of Pyogranulomatous Lesions that Follow the Blood Vessels. What is the Diagnosis?

A

Feline Infectious Peritonitis

*Lesions Follow the Blood Vessels in the Kidney

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2
Q

Tissue from a Foals. What is the Etiology?

A

Rhodococcus Equi

*Classical Condition in Foals- Pyogranulomatous Lesion in the Lungs

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3
Q

Skull from a Dog with Severe Osteolysis in the Maxilla with Loss of Alveolar Bone and Teeth. What is the Etiologic Diagnosis?

A

Renal Osteodystrophy (Rubber Jaw)

*Secondary Renal Hyperparathyroidism leading to Bone Resorption in the Skull

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3
Q

Heart from a Feedlot Steer with Fibrosis and Suppurative Inflammation. What is the Etiology?

A

Histophilus Somni

*Steers and Heifers if you see this Type of Suppurative Necrotizing Lesion- think Histophilus Somni

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4
Q

Pig Liver Condemned at Slaughter House with Multifocal White Lesions. What is the Diagnosis?

A

Milk Spotted Liver

*Ascarid Suum

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4
Q

Pig that was Condemned at the Local Slaughter House. The Pig appears to be Jaundice due to Yellow Mucous Membranes. The Liver was Enlarged and had Fibrin on the Surface. On cross-section the The Liver Lobules appear to be Hemorrhagic and Necrotic. What is the Etiology?

A

Vitamin E and Selenium Deficiency

*Hepatosis Diatetica

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4
Q

Liver from a Cow that is Cross Sectioned. Black Cystic Lesions surrounded by Fibrous Connective Tissue are Present in the Liver Parenchyma. What is the Parasite Responsible for these Lesions?

A

Fasciola Magna

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4
Q

Puppy with Widespread Mineralization of the Mucosa and Submucosa of the Stomach. When Cut, the Material feels Gritty. What is the Etiological Diagnosis?

A

Uremic Gastritis

*Secondary to Renal Disease

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4
Q

Kidney from a Cat. What is the Morphological Diagnosis?

A

Renal Lymphosarcoma

*Morphologic Diagnosis for Tumors is the Name of the Tumor and the Location

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4
Q

Cat with Congestion and Hemorrhage of the Pancreas. There is Also Saponification of the Fat in the Mesetery (Fat Necrosis) What is the Morphologic Diagnosis?

A

Hemorrhagic Necrotizing Pancreatitis

*Inflammation of the Pancreas leads to Activation of Pancreatic Enzymes that are Proteolytic and will Produce Necrosis of Tissue and Fat with Saponification

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4
Q

Tissue from a Horse. What is the Etiological Diagnosis?

A

Verminous Arteritis

*Thrombus in the Cranial Mesenteric Artery

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4
Q

Horse with Rupture of the Abdominal Wall. The Cranial Mesenteric Artery was Thickened with Thrombosis and Chronic Hemorrhage. What is the Etiology?

A

Strongylus Vulgaris

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4
Q

Tissue from a Pig. What is the Name of the Disease?

A

Porcine Contagious Pleuropneumoniae

*Actinobacillus Pleuropneumoniae

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4
Q

Young Dog with an Indentation in the Skull. What is going on in this Young Dog?

A

Failure of Fusion of the Flat Bones

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4
Q

What is Demonstrated in this Picture?

A

Cerebellar Conning

*Piece of Cereballar Tissue Protruding through the Foramen Magna

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4
Q

What Lesion is Present in the Brain?

A

Pituitary Mass

*Ventral Aspect of Brain. Red Hemorrhagic Mass in the Pituitary Gland Region. Lesion is Compressing The Hypothalamus.

*If non Functioning, can cause Diabetes Insipidus- KNOW

Also can cause Inability of Horses to Loose Winter Hair Coat

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5
Q

Common Syndrome in Cats when Obese Cats are Fasted or Stop Eating leading to Fat Mobilization to the Liver causing Hepatic Lipidosis

A

Fatty Liver Syndrome

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5
Q

Miniature Schnauzer that Died from Congestive Heart Failure. What is the Etiological Diagnosis?

A

Valvular Endocardiosis

*Lesions of Valvular Endocardiosis in the Left Atrioventricular Valve with Nodularity of the Valves

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5
Q

What is the Etiological Diagnosis in this Brain?

A

Bacterial Meningitis

*Common

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5
Q

What Pathology will Appear in the Spinal Cord?

A

Wallarian Degeneration

*Compression leads to Degeneration where the Axons and Myelin Sheaths break down at the same time

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6
Q

Intestines from a Young Sow with Profuse Hemorrhagic Diarrhea. The Mucosa is very Thickened with Hyperplastic Changes, Hemorrhage and Necrosis. What is the Disease?

A

Proliferative Hemorrhagic Enteropathy

*One of the Manifestations of Porcine Proliferative Enteropathy- Still Lawsonia Intracellularis

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6
Q

Kidney from a Cat, what is the Morphological Diagnosis?

A

Renal Lymphosarcoma

*Infiltrating the Cortex and Medulla

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6
Q

Kidney from a Cat, what is the Morphological Diagnosis?

A

Multifocal Pyogranulomatous Nephritis

*FIP- Follows the Blood Vessels

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6
Q

What is the Pathogenesis causing this Renal Infarct in an Older Cat with Hyperthyroidism

A

Aortic Thrombosis (Saddle Thrombosis)

*Cat with Hypertrophic Cardiomyopathy and Saddle Thrombus that was So bad it backed all the way up to were the Renal Arteries are and there were Emboli Showering the Kidneys

*The Heart is Overworking due to Thyroid Hormone Stimulation causing Myofibers to Hypertrophy to the Point where now the Heart can’t beat normally and the Blood Flow within the Vessels becomes Stagnant leading to Saddle Thrombosis

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7
Q

How can you Confirm the Diagnosis of Hepatic Lipidosis?

A

The Liver will Float

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7
Q

Ribs from a Dog with Whitish Material on the Surface of the Intercoastal Muscles. If Muscle is cut with a Knife you will Feel a Gritty Material. What is the Etiology?

A

Uremia

*Non-Renal Lesion of Uremia- Renal Disease

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8
Q

What is the Etiology?

A

Rhodococcus Equi

*Pyogranulomatous Pneumonia in a Foal

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10
Q

Morphological Diagnosis for this Cat with Ulcerative Lesions on the Ventral Surface of the Tongue

A

Fibrinous Multifocal Ulcerative Glossitis

*Due to Renal Disease- Uremic Glossitis

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11
Q

What Lesion is Occuring in this Calf?

A

Contracted Tendons

*Abnormal Turning Back of the Feet- Particularly in the Hind Limbs

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12
Q

Dog with Severe Osteolysis in the Maxilla with Loss of Alveolar Bone and Teeth. What is the Etiology?

A

Secondary Renal Hyperparathyroidism

*Renal Disease leads to Hyperphosphatemia, causing Secondary Hypocalcemia. Stimulation of the Parathyroid leading to Osteolysis of Bones in Order to Increase Calcium Serum

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13
Q

What is the Etiology

A

Bordetella Bronchiseptica

Pasteurella Multocida Type D and A

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14
Q

Bacterial Enteritis in the Intestines of a Grower Pig which Leads to Very Thickened Intestines. The Ileum is very Hypertrophic. What is the Etiological Diagnosis?

A

Lawsonia Enteritis

*Porcine Proliferative Enteropathy

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15
Q

Pig Liver condemned at Slaughter. Hepatic Lobules are Separated by Fibrous Connective Tissue. What is the Etiological Diagnosis?

A

Ascarid Suum

*Milk Spotted Liver- Larvae Migrate through the Tissues

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16
Q

Etiological Diagnosis of this Jejunum from a Goat Kid that Developed Diarrhea and Weight Loss

A

Coccidial Enteritis

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16
Q

Top Differential for this Still Born or Aborted Calf with Contracted Tendons

A

Bovine Viral Diarrhea (BVD)

*Why do Calved with BVD get Contracted Tendons? These animals do not Move around enough in Utero to have Full Movement of their Limbs. Usually a Lesion in their Cervical Spine and Long Motor Neurons are Damaged. Contracted Tendons usually tend to Reflect a Neurological Problem

*Another differential would be Schmallenberg Virus

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17
Q

Tissue from a Sheep. What is the Morphological Diagnosis?

A

Enzootic Nasal Carcinoma (Adenocarcinoma)

*Tumor that is Well Differentiated that arises from the Nasal Turbinates. Very Characteristic Lesion in Sheep. Even though these tumors are Malignant, they do not Metastasize

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18
Q

Segment of Spinal Cord. What is the Disease of Dorsal Root Ganglia Called?

A

Polyradiculopathy

*Dorsal Root Ganglia

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19
Q

What is Depicted in these Pictures?

A

Congenital Hydrocephalus

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20
Q

Kidney from a Cat, what is the Etiology?

A

Feline Infectious Peritonitis

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22
Q

Liver from a Cow that is Enlarged with Dark Red with Pale Areas of Indentation causing a Nodular Appearance. What Problem in this animal is leading to this “Nutmeg” Appearance in the Liver?

A

Congestive Heart Failure

*Nutmeg Liver

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24
Q

Etiological Diagnosis for this 12 Year Old cat

A

Uremic Glossitis

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25
Q

What is the Morphological Diagnosis of this Kidney from a Cat?

A

Multifocal to Coalescing Pyogranulomatous Nephritis

*FIP

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27
Q

Morphological Diagnosis of this 12 year Old Cat

A

Multifocal Ulcerative Glossitis

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28
Q

13 Year old Border Collie Dog with Long Standing Poorly Controlled Diabetes, Intermittent Diarrhea, and Heart Murmur. Died on Arrival to the Veterinary Clinic. The Pancreas Appears Very Small and Congestion. The Kidneys appears Indented and Granular with Papillary Necrosis. What Kind of Nephritis is Suggested?

A

Pyelonephritis

*Ascending Infection in the Kidneys- Papillary Necrosis

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29
Q

What is your Most Likely Differential?

A

Meningioma

*Protruding or Sitting on the Surface of the Cerebrum. Most Likely Not Metastatic because only seeing One Lesion. Lesion is attached to the Meninges

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32
Q

What does Cerebellar Conning Tell you?

A

Inflammation

*Increased Pressure of the Brain- Commonly Oedema, and Hydrocephalus, Hemorrhage, or Space Occupying Lesions

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33
Q

Multifocal to Coalescing Ulcerative Lesions with Sloughing off of the Epithelium in the Non Glandular Stomach of a Horse. Ulcerative Lesions also in the Esophagus and Urinary Bladder. What disease is this?

A

Cantharidin Toxicity

33
Q

What is the Most Likely Cause of Meningitis in this Brain?

A

Bacterial Agent

*Neutrophil Infiltration = Bacterial Infection

*Rod Shaped Bacteria in Neutrophils

35
Q

Liver from a Cat. What is the Morphological Diagnosis?

A

Hepatic Lipidosis

36
Q

Tissue from a Cow with Severe Chronic Diarrhea and Emaciation. What is the Etiological Diagnosis

A

Johnes Disease

*Mycobacterium Avium Paratuberculosis

38
Q

Tissue from a Foal. What is the Morphological Diagnosis

A

Multifocal Pyogranulomatous Pneumonia

39
Q

What is the Morphological Diagnosis?

A

Hemangiosarcoma

*Hemangiosarcoma is a common Lesion in Old dogs. Reddish Tumor in the Right Atrium. Metastasis to the Lungs that happens quickly with Hemangiosarcomas. This Dog also had Metastasis to the Intestine and Kidneys

*Very characterisitic Raised Reddish Tumors with cysts that are Filled with Blood

41
Q

Pig that was Condemned at the Local Slaughter House. The Pig appears to be Jaundice due to Yellow Mucous Membranes. The Liver was Enlarged and had Fibrin on the Surface. On cross-section the The Liver Lobules appear to be Hemorrhagic and Necrotic. What is the Name of the Disease?

A

Hepatosis Diatetica

43
Q

Adult Female Dog with a History of Gaining Weight while Eating the Same Amount of Food. Also History of Lethargy. What is the Morphological Diagnosis of this Histology of the Thyroid Gland?

A

Lymphocytic Thyroiditis (+ Thyroid Atrophy)

*Common Lesion Underlying Canine Hypothyroidism

45
Q

Etiological Diagnosis Causing this Bacterial Enteritis in the Intestines of a Grower Pig which Leads to Very Thickened Intestines

A

Lawsonia Enteritis

*Causes Porcine Proliferative Enteropathy

47
Q

Tissue from a Horse with a Thrombus of the Cranial Mesentaric Artery. What is the Etiology?

A

Strongylus Vulgaris

48
Q

13 Year old Border Collie Dog with Long Standing Poorly Controlled Diabetes, Intermittent Diarrhea, and Heart Murmur. Died on Arrival to the Veterinary Clinic. The Pancreas Appears Very Small and Congestion. The Kidneys appears Indented and Granular with Papillary Necrosis. What is the Final Diagnosis of the Kidney?

A

Chronic Pyelonephritis with Papillary Necrosis Secondary to Diabetes

*Patients with Diabetes Eliminate a lot of Glucose through the Urine which makes them Susceptible to Secondary Infections

50
Q

If the Animal has Cushings Disease, what other Tissues may have Lesions?

A

PotBelly (Redistribution of Fat /Steroid Hepatopathy/Muscle Atrophy)

Bilateral Alopecia

Pyoderma (2ndary Infections)

Urinary Tract Infections

Adrenal Gland/Pituitary Tumors

50
Q

Tissue from a Cat. What is the Condition?

A

Saddle Thrombosis

*Thrombus in the Terminal Aorta

51
Q

Adult Female Dog with a History of Gaining Weight while Eating the Same Amount of Food. Also History of Lethargy. What Morphological Abnormality is Seen in the Heart?

A

Coronary Atherosclerosis

*Common Lesion associated with Hypothyroidism- Only Condition in Dogs where you see Athersclerosis

*Microscopically Coronary Atherosclerosis of Extramural Ateries was Evident

52
Q

Gross Morphological Diagnosis

A

Calcinosis Cutis

*White Chalky Areas- Only Lesion that Produces White in the Skin Like this

54
Q

Bacterial Enteritis in the Intestines of a Grower Pig which Leads to Very Thickened Intestines. The Ileum is very Hypertrophic. What is the Morphological Diagnosis?

A

Proliferative Enteritis (ileitis)

*Lawsonia Intracellularis- Porcine Proliferative Enteropathy

55
Q

Tissue from a Steer which Died after showing signs of Severe Respiratory Distress. What is the Etiology for this Lesion

A

Bovine Herpes Virus 1 (IBR)

*This is the Larynx that has been Opened

56
Q

Tissue from a Steer. What would be the Etiology?

A

Mannheimia Hemolytica

*Fibrinous- This is a Case of Shipping Fever

57
Q

Young Dog with an Indentation in the Skull. What is the Morphologic Diagnosis?

A

Bilateral Congenital Hydrocephalus

57
Q

What Condition do you Typically See in the Cauda Equina

A

Cauda Equina Syndrome in Horses

*Instigated by Equine Herpes Virus- KNOW. Causes Swollen Nerves filled with Lymphocytes and Plasma Cells

58
Q

What is the Morphological Diagnosis of the Heart in a Cat with Hyperthyroidism?

A

Biventricular Cardiac Hypertrophy

*Hyperthyroidism in a Cat associated with a Heart Lesion

Why is the Heart Enlarged in this Cat with Hyperthyroidism? Association between Hypertrophic Cardio Myopathy and Hyperthyroidism- Diagnose these Two things Together Frequently. Thyroid Hormone makes the Heart Work even Harder

60
Q

Kidney from a Cat, What is the Morphological Diagnosis?

A

Multifocal Pyogranulomatous Nephritis

*FIP- Lesions following Blood Vessels

61
Q

Etiology Causing this Bacterial Enteritis in the Intestines of a Grower Pig which Leads to Very Thickened Intestines

A

Lawsonia Intracellularis

*Garden Hose Appearance

62
Q

Tissue from a Dog with Raised White Nodular Lesions in the Left Atrium of the Heart. When Sectioned with a Knife it Feels Gritty. What is the Morphological Diagnosis?

A

Multifocal Endocardium Mineralization

63
Q

What would be the Morphological Diagnosis of this Lung?

A

Diffuse Pulmonary Atelectasis

*Still Born Calf- Sunken Lungs

64
Q

Hypertrophic Cardiomyopathy is Commonly Associated with what Thyroid Condition?

A

Hyperthyroidism

* Cardiac Hypertrophy in the Cat can be Secondary to Too much Thyroid Hormone over Time- Chronic Overload of Total T4 leading to Stimulatory effects on the Myocardium

66
Q

Adrenal Glands from a Horse. What type of Neoplasm could this be?

A

Adrenal Pheochromocytoma

*Tumor is coming from the Adrenal Medulla. Name of Neoplasm that is derived from the Adrenal Medulla- Pheochromocytoma

*If Mass Looks Red that tends to be Pheochromocytoma and if the Mass is Tan it tends to be Adrenal Cortical Tumors

66
Q

What is the Name of the Disease?

A

Atrophic Rhinitis

*Twisting of Snout and Atrophy of Nasal Turbinates

66
Q

What is the Top Differential for this Brain Lesion?

A

Menigitis

*Inflammatory Foci- Focal area of Meningitis (Inflammatory Focus in the Meninges)

*Not Symmetrical- Lesion only on One Side of the Brain

68
Q

Morphological Diagnosis of this Tissue From a Cow

A

Granulomatous Enteritis

*Johnes Disease- Mycobacterium Avium Paratuberculosis

68
Q

Liver from a Cow with Black Discoloration within the Parencyhma and Capsule. What Parasite is Causing these lesions?

A

Fascioloides Magna (Liver Fluke)

*Caused by Close proximity of Cattle to Infested Wildlife (Deer). Larvae travel through Parenchyma and cause Damage. Discoloration is due to Fluke Feces

69
Q

Stain used to Detect the Silver Positive Lawsonia Intracellularis

A

Warthin Starry Stain

*Shows Rod Shaped bacteria within Apical Surface of the Intestine

69
Q

Gross Morphological Diagnosis?

A

Diffuse Adrenal cortical Hyperplasia

*Cortex to Medulla Ratio is 3:1. Cortex is Diffusely Thickened

70
Q

Tissues from a Pig. What is the Etiology?

A

Actinobacillus Pleuropneumonia

*Lesions are Very similar to Shipping Fever- can see Fibrin in the Caudal Lung Lobe. Fibrinous Hemorraghic and Necrotizing Pneumonia with Distribution primarily in the Caudal Lung Lobes

72
Q

Adult Female Dog with a History of Gaining Weight while Eating the Same Amount of Food. Also History of Lethargy. What Morphological Abnormalities can you See in the Face?

A

Alopecia and Myxedema

73
Q

Gross Morphological Diagnosis of this Parathyroid from a Cat

A

Parathyroid Hyperplasia

74
Q

What was the FInal Diagnosis in this Dog with Alopecia, Myxedema, Obesity, Thyroid Atrophy, and Coronary Atherosclerosis

A

Hypothyroidism

*Lesion Underlying Hypothyroidism- Lymphocytic Thyroiditis

75
Q

Tissue from a Rabbit. What is the Etiology?

A

Pasteurella Multocida

*Any kind of Suppurative Inflammation in Rabbits- think Pasteurella- Especially if in the Lungs and Thoracic Cavity

76
Q

Intestines from a Young Sow with Very Thickened Mucosa and Proliferation. What is the Etiology?

A

Lawsonia Intracellularis

*Intestinal Mucosal Hyperplasia

76
Q

What is the Pattern of Pneumonia in this Pig?

A

Embolic Pneumonia

*Bacterial Infection via Hematogenous Route

77
Q

Etiology of this 12 year Old Cat

A

Uremia (Renal Disease)

78
Q

Cerebral Hemispheres from a Stillborn Calf with Contracted Tendons. What is the Most Likely Etiology?

A

Bovine Viral Diarrhea

*Cerebral Hemispheres are Not Normal and the Cerebellum is Okay

80
Q

Liver from a Dog. What is the Disease?

A

Hepatic Cirrhosis

*Chronic Liver Disease- Nodules due to Post Necrotic Scarring and Hepatocellular Regeneration. Impossible to Determine the Etiology.

81
Q

What Endocrine Abnormality Underlies this Skin Lesion?

A

Hyperadrenocorticism (Cushings)

83
Q

Multifocal to Coalescing Ulcerative Lesions with Sloughing off of the Epithelium in the Non Glandular Stomach of a Horse. Ulcerative Lesions also in the Esophagus and Urinary Bladder. What is the Cause of this Disease?

A

Blister Beetles in Alfalfa Hay

*Cantharidin Toxicity

83
Q

Colon of a Horse. What is the Morphologic Diagnosis?

A

Colonic Infarction Secondary to Verminous Arteritis

*Ischemic Infarct Secondary to Cranial Mesenteric Artery Thrombus. Colic can Occur Secondary to Cranial Mesenteric Artery Thrombosis because it will cause Areas of Ischemia within the Large Intestine, that is a Supplied by the Cranial Mesenteric Artery

*Pieces from the Thrombus in the Cranial Mesenteric Artery can break off and go into the smaller blood vessels and result in lesions like this

84
Q

How to Differentiate Liver Damage due to Fasciola Hepatica versus Fasciola Magna

A

Fasciola Magna- Liver Parenchyma

Fasciola Hepatica- Bile Duct (Cholangitis)

86
Q

Adult Female Dog with a History of Gaining Weight while Eating the Same Amount of Food. Also History of Lethargy. What is the Gross Morphological Diagnosis of the Thyroid?

A

Thyroid Atrophy

87
Q

Section of Stomach in a Shih Tzu with Areas of Bluish Discoloration due to Inflammation and Necrosis. Von Kossa Stain shows the Presence of Mineralization. What is the Etiological Diagnosis?

A

Uremic Gastritis

*Wide Spread Gastric Mineralization- Von Kossa. Shih Tzu with Familial Renal Disease

88
Q

4 Year Old Spayed Female Domestic Shorthair Cat with Progressive Weight Loss. Diagnosed with Oral Lesion in the Past. Crashed 2 days ago and was Euthanized. During Necropsy the Oral Cavity shows a Proliferative Yellow Lesion. What is the Most Likely Etiological Diagnosis of this Lesion?

A

Squamous Cell Carcinoma

*Very Common Tumor of the Oral Cavity in Cats- These type of Tumors Cause Destruction of the Tissue

90
Q

13 Year old Border Collie Dog with Long Standing Poorly Controlled Diabetes, Intermittent Diarrhea, and Heart Murmur. Died on Arrival to the Veterinary Clinic. What Common Complication is associated with Diabetes Mellitus in the Eye?

A

Cloudiness of the Lens- Cataracts

*Glucose in the Lens with Metabolites lead to Cloudiness of the Lens

91
Q

Pig that was Condemned at the Local Slaughter House. The Pig appears to be Jaundice due to Yellow Mucous Membranes. The Liver was Enlarged and had Fibrin on the Surface. On cross-section the The Liver Lobules appear to be Hemorrhagic and Necrotic. What is the Morphological Diagnosis?

A

Diffuse Hepatic Necrosis and Hemorrhage

*Panlobular Hepatic Necrosis

93
Q

Tissue from a Dog with Raised White Nodular Lesions in the Left Atrium of the Heart. When Sectioned with a Knife it Feels Gritty. What is the Etiological Diagnosis?

A

Uremic Endocarditis

*Very Characterisitic Lesion of Renal Failure- Lesions are always located in the Left Atrium

94
Q

Intestines from a Young Sow with Profuse Hemorrhagic Diarrhea. The Mucosa is very Thickened with Hyperplastic Changes, Hemorrhage and Necrosis. What is the Etiology?

A

Lawsonia Intracellularis

*Thickening of the Mucosa

96
Q

Saddle Thrombosis in a Cat. What could be the Associated Condition?

A

Hypertrophic Cardiomyopathy

*Cardiomyopathies in General can Produce Saddle Thrombosis

*Cats with Saddle Thrombosis will also have Neurological Signs and Hind Limb Paralysis with Cold Limbs

98
Q

What is Morphologically Abnormal?

A

Crusting with Alopecia and Hemorrhagic Papules/Pustules

*With Crust you know their is Either an Accumulation of Exudate or Keratin

100
Q

What is the Cause of this Lesion

A

ACTH Secreting Puitary Adenoma

102
Q

2 Week old Female Puppy with No Anus (Atresia Ani) with the Presence of Feces coming through the Vulva. What is the Phenomenon Called?

A

Rectovaginal Fistula

103
Q

Heart from a Feedlot Steer. What is the Likely Etiology?

A

Histophulis Somni

*Bacteria that is Very Important in Feedlot Cattle- Produces a Necrotizing and Suppurative Myocarditis

104
Q

Classical Appearance of _____ in a Calf

A

Hydrocephalus

*Massive Doming of Skull

106
Q

14 Year Old Cat. What is the Morphological Diagnosis of the Thyroid?

A

Bilateral Thyroid Nodular Hyperplasia

*Or Bilateral Thyroid Adenomas

*Thyroid Glands are 10xs Normal Size and Nodular

108
Q

Old Cat with Hyperthyroidism. What is the Morphological Diagnosis of this Lesion in the Kidney

A

Acute Renal Infarct

*Wedge Shaped Area of Palor that Spans the Cortex and Medulla and in the Medulla it has a Hyperemic Rim. Infarct affecting the Vascular Supply

109
Q

Kidney from a Cat, What is the Morphological Diagnosis?

A

Renal Lymphosarcoma

*Lesion is Prominant and Nodular

110
Q

Tissue from a Steer which Died after showing signs of Severe Respiratory Distress. What is the Morphological Diagnosis

A

Multifocal Ulcerative Fibrinonecrotizing Laryngotracheaitis

111
Q

Dog with Congestion and Hemorrhage of the Gastric Mucosa. What is the Etiological Diagnosis?

A

Uremic Gastritis

*Non-Renal Lesion of Uremia

112
Q

Heart from a Feedlot Steer. What is Morphological Diagnosis?

A

Multifocal to Coalescing Suppurative Myocarditis

*Suppurative = Neutrophils. Fibrosis is Also Occuring

113
Q

Calf with Significantly Deformed Limbs due to Tendon Contraction. What is the Top Differential?

A

Bovine Viral Diarrhea (BVD)

*Calf seems Dwarfed- What other condition may be going on? Chondrodysplasia

115
Q

Liver from a Rabbit with Diffuse Tan Nodules Scattered throughout the Parenchyma with Hyperplastic Cholangitis. What is the Etiology?

A

Coccidiosis

*Classical Condition in Rabbits- Leads to Thickening of Bile Ducts

116
Q

What Other Lesions may be seen as a Result of Hyperparathyroidism

A

Metastatic Tissue Calcification

*Mineral Depositing in the Basement Membrane of the Mucosa

117
Q

Tissue from a Sheep. What is the Etiology?

A

Enzootic Nasal Tumor Virus (ENTV)

*Ovine Beta-Retrovirus

118
Q

Two Main Causes of Secondary Hyperparathyroidism

A

Nutrition ( Low Calcium/High Phosphorus)

Renal Disease (Most Common)

120
Q

4 Year Old Spayed Female Domestic Shorthair Cat with Progressive Weight Loss. Diagnosed with Oral Lesion in the Past. Crashed 2 days ago and was Euthanized. During Necropsy the Oral Cavity shows a Proliferative Yellow Lesion. Retropharyngeal Lymph Nodes are Enlarged. What is the final Diagnosis in this Cat?

A

Squamous Cell Carcinoma

*Reactive Lymphadenopathy due to Inflammation in Oral Cavity- No metastasis to the Lymph Nodes

121
Q

9 Month Old Rottweiler Puppy Died after Weeks of Lethargy, Foul Smelling Vomiting and Diarrhea, and Reluctance to Eat. He was Very anemic with pale mucous Membranes. Upon Necropsy the Kidney appeared Nodular and White with Fibrosis. The Lungs were Very Enlarged and Frothy Fluid was Found in the Trachea. What is the Etiological Diagnosis of the Lungs?

A

Pulmonary Edema

*Secondary to Chronic Renal Failure

Pathology Laboratory Final (1 decks)

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