IMAGES Flashcards by Frances Monefeldt

(A) Superficial dorsal vein
(B) Deep dorsal vein
(C) Dorsal artery
(D) Corpus cavernosum
(E) Corpus spongiosum

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Mycobacterium tuberculosis (Ziehl-Neelse stain)

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Histoplasma capsulatum (mold form)

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Pneumocystis jirovecii

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Mucormycosis

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Blastomyces dermatitidis

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Cryptococcosis

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Kayser-Fleischer Ring

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Influenza

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Dermatitis Herpetiformis

(grouped papulovesicular eruptions with escoriations and erythematous areas surrounding the lesions)

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Esophageal Squamous Cell Carcinoma

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Ganglion Cyst

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Angiomyolipoma associated with Tuberous Sclerosis

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Iron Deficiency Anemia

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Mitral Valve Prolapse

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Trichomonas Vaginalis

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Digital Clubbing

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Ebstein Anomaly

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Total Anomalous Pulmonary Venous Return

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Serous Adenoma Tumor of the Ovary

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Mitral Stenosis

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Basal Ganglia Hemorrhage due to Chronic Hypertension

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Aortic Stenosis Caused by Chronic Rheumatic Valve Disease (Fused commissures)

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Aortic Dissection (Widened Mediastinum)

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Xanthoma (lipid laden foam cells with large cholesterol clefts)

Eruptive Xanthomas

Severe Atherosclerosis of the Aorta

Hyperplastic Arteriolosclerosis

Hyaline Arteriolosclerosis

Atherosclerotic Plaque in the Abdominal Aorta

Foam Cells

Blue toe syndrome (usually caused by cholesterol embolization of an artery; typically after an invasive vascular procedure)

Atherosclerosis of Coronary Artery

Atheroma

Ovarian Fibroma

Leiomyosarcoma

GI Stromal Tumor

Cholangiocarcinoma

Syphilis

Calcium Oxalate Crystals

Dandy Walker Syndrome

Subdural Hematoma

Serous Ovarian Adenoma Tumor

Osteitis Fibrosis Cystica

Myocardial scar (post infarction) [most right side]

Myocardial Infarction (Granulation)

Mitral Stenosis

Microglia Cells

Mallory Weiss Tears

Left Ventricular Mural Thrombus

Haemophilus influenzae type B

Dense Subepithelial Humps on the GBM seen in PSGN

Contraction Band Necrosis

Bicornuate Uterus

Aortic Dissection (widened mediastinum)

Pulmonary Alveolar Edema

Myofibrillar disarray (seen in hypertrophic obstructive cardiomyopathy)

Left Ventricular Hypertrophy

Left ventricular enlargement (green)

Hypertrophic Cardiomyopathy

Hepatic congestion (nutmeg liver)

Heart Failure Cells

Electrical Alternans

Dilated Cardiomyopathy

Constrictive Pericarditis

Concentric Hypertrophic Cardiomyopathy

Cardiogenic Pulmonary Edema

Sertolli Cells

Second Degree Heart Block (Mobitz type I Block)

Pacinian Corpuscle

Valve Thrombosis in Recurrent Endocarditis of the Mitral Valve

Splinter (vertical) Hemorrhages in Endicarditis

Splenic Infarct

Roth Spots (reflect small retinal hemorrhages due to retinal artery occlusion)

Pretibial Myxedema

Pneumothorax

Pericardial Tamponade (red discoloration is evidence of a hemorrhage)

Pericardial Tamponade (coagulation indicates previous hemorrhage)

Pericardial Effusion in Exudative Pericarditis (globular "water bottle" shaped)

Pericardial Effusion (anechoic pericardial effusion surrounding the heart [green overlay])

Pericardial Effusion

Osler nodes (raised nodular lesions; appear dark brown indicating subcutaneous hemorrhage)

Mallory Weiss Tears

Keratin Pearl seen in Squamous Cell Carcinoma

Janeway Lesions | (caused by infective endocarditis)

Intraparenchymal Hemorrhage

Infective Endocarditis of the Aortic Valve

Infective Endocarditis

Hemophagocytes

Haemophilus Influenzae type B

Follicular Thyroid Cancer

Cowdry A Inclusion Bodies

Charcot Leyden Crystals

Bronchial Asthma (mucoid exudate, goblet cell metaplasia, and smooth muscle hypertrophy)

Amanita Phalloides | (often called the death cap mushroom)

Temporal Arteritis

Takayasu Arteritis | (great vessel stenoses)

Subcutaneous Nodules in Rheumatic Fever

Polyarteritis nodosa (PAN)

Pericarditis

Left Atrial Myxoma

Giant Cell Arteritis

Fibrious Pericarditis in Uremia (pericardium covered with linear fibrinous exudates consisting of fibrin strands and leukocytes)

Fibrinous Pericarditis (periardium is covered by fibrinous exudate, which is assembled in long, gray-white, villus like strands)

External Carotid Artery Stenosis (Takayasu Arteritis)

Erythema Marginatum (one of the major Jones criteria for the diagnosis of rheumatic fever)

Contrictive Pericarditis (particularly in the region of the apex)

Cardiac Myxoma

Aschoff Body

Acute Pericarditis

Toe Gangrene

Telangiectasia

Strawberry tongue seen in Kawasaki disease

Renal Artery Microaneurysms seen in Polyarteritis Nodosa

Polyarteritis Nodosa (transmural inflammation of the arterial wall with leucocytic infiltration and fibrinoid necrosis)

Perinuclear antineutrophil cytoplasmic antibodies (p-ANCA)

Muscle Involvement in Polyarteritis Nodosa (transmural inflammatory infiltrate, fibrinoid necrosis)

Henoch-Schonlein Purpura (palpable, nonblanching symmetrically-distributed purpura predominantly clustered over gravity-dependent areas, such as the ankles)

Granulomatosis with Polyangiitis (round, solitary and nodular changes with centrally necrotic cavities)

Eosinophilic Granulomatosis with Polyangiitis

Cytoplasmic Antineutrophil Cytoplasmic Antibodies (c-ANCA)

Cryoglobulinemic Vasculitis (multiple, partially confluent, round circular purpura on both legs and thighs)

Coronary Artery Aneurysm in Kawasaki Disease (suggests an aneurysm of the LCA)

Foxglove (Digitalis)

Digitalis (Digoxin) effect (sagging ST segment depression, also described as sagging ST segment depression seen in patients using digitalis)

Signet Ring Cells

Giardia Lamblia

Mast Cells

Diverticulitis

Bouchard and Heberden Nodes seen in Osteoarthritis

Gastroesophageal Reflux Disease (GERD)

Wolff-Parkinson-White (WPW) Syndrome

Thyroglossal Duct Cyst

Keratoderma Blennorrhagica

Trichotillomania

Small Cell Lung Cancer | (dispersed "salt and pepper" chromatin)

Rough Endoplasmic Reticulum (RER)

Amyloidosis (stain with Congo red yields apple green birefringence)

Strongyloides stercoralis

Paget Disease of the Breast

Fibroid (Leiomyoma)

Cirrhosis

Cirrhosis | (nodular, shrunken liver)

Spacing of Teeth in Acromegaly

Pituitary Gland Tumor

Pituitary Adenoma

Enlarged Forehead in Acromegaly

Acromegalic Facies

Wilson Disease | (accumulation of copper in hepatocytes)

Wilms Tumor

Rheumatoid Nodules

Pemphigus Vulgaris (immunoglobulins present within the intercellular spaces of the epidermis)

Neisseria gonorrhoeae

Langerhans Cell Histiocytosis

Keratomalacia | (seen in vitamin A deficiency)

Hyperthyroidism in Graves Disease

Hyperthyroidism

Hashimoto Thyroiditis

Graves Disease | (increased vascularity)

Flat warts | (caused by infections with HPV)

Craniopharyngioma (calcified cyst in the suprasellar region)

ALL | (numerous lymphoblasts)

Birbeck granules are seen within the cytoplasm of Langerhans cells (Langerhans histiocytosis)

Cryptosporidium parvum

Atrophic Cerebellar Vermis

Posterior Cerebral Artery

Thyroid Follicular Adenoma (closely packed follicular cells (examples indicated by green overlay) appear normal with round, uniform nuclei and dense chromatin patterns)

Papillary Thyroid Carcinoma Green overlay → psammoma bodies White overlay → connective tissue core of papillae Black outline → epithelial cancer cells covering the papillae

Psammoma Body

Medullary Thyroid Carcinoma Green overlay → tumor cell nests Black arrows → fibrous bands with prominent vascularity

Amyloid Deposits in Medullary Thyroid Carcinoma Green overlay → amyloid deposits Red → exemplary tumor cells

Solid Thyroid Nodule (Solid circumscribed hypoechoic nodule is present in the left thyroid lobe. It does not contain microcalcifications. Color Doppler shows vascular flow).

Mixed Cystic and Solid Thyroid Nodule A heterogeneous thyroid nodule (white overlay) has hypoechoic (red overlay) and slightly hyperechoic (green overlay) components. Microcalcifications (arrowheads) are present along the periphery of the hypoechoic component

Cold Thyroid Nodule Large cold nodule (black circle) is visible within the left thyroid lobe as an area of decreased radiotracer uptake. Radiotracer uptake by the rest of the thyroid gland appears normal

Serous Papillary Cystadenoma of the Ovary with Psammoma Bodies In addition to papillary tumor cells, there are two Psammoma bodies located in the lower left corner of the image (red overlay).

Follicular Thyroid Cancer

Nuclear Grooves and Orphan Annie Eyes in Papillary Thyroid Carcinoma

Medullary Thyroid Carcinoma Very dense conglomeration of parafollicular cells arranged in nests and clusters (examples indicated by arrowheads). Amyloid is visible in the stroma as amorphous, pink, hyaline material (examples indicated by purple overlays)

Anaplastic Thyroid Carcinoma (disorganized pleomorphic cells are visible while the normal histological follicular architecture of the thyroid gland is absent)

A → Gastric mucous neck cell, which produces gastric mucus and is typically found near the upper region of gastric gland. They can be identified by a pale, foamy cytoplasm and a basolateral nucleus B → G cells C → Chief cells can be identified by their basophilic cytoplasm and the presence of numerous cytoplasmic vesicles, which give the cytoplasm a granular appearance. D → Vascular endothelial cell, which can be identified by its position lining a capillary E → Perivascular fibroblast, marked by its presence within stromal connective tissue and dark, oblong nucleus