final exam new info integument Flashcards
Mdx? Name?
MDx: pyogranulomatous dermatitis.
Puppy Strangles (Juvenile sterile granulomatous dermatitis)
Mdx?
Name?
MDx: granulomatous dermatitis.
Fungal dermatitis
Swamp cancer
Mdx?
Name?
MDx : pyogranulomatous dermatitis.
Actinomycete Mycetomas
Mdx? Name?
MDx: granulomatous dermatitis
Mycobacterial Dermatitis Feline leprosy
Mycobacterial Dermatitis Opportunistic mycobacteriosis
Boxers have predisposition
Mycobacterial Dermatitis Canine Leproid Granuloma
Minnie is a culprit of this
“Lick Granuloma” Acral lick dermatitis
What dz and what are 4 causes of this dz
allergy skin dz
from atopy, food, direct contact, insect bite
Mdx? if this is allergy skin dz
MDx: Eosinophilic dermatitis with epidermal hyperplasia
How do you know this chronic dermatitis is from atopy? how would you dx?
intradermal skin test
true or false These lesions are atopy allergy skin dz
false
self trauma
This in the pad allergy skin dz is probably from ____
direct contact
These are characteristic of what type of allergy dermatitis?
insect bite
This is a dog with ___
flea bite allergy dermatitis
This is a pattern of lesions in cat allergy dermatitis
miliary dermatitis
Indolent ulcer – ulcers on upper lips.
Eosinophilic plaque – discrete red to ulcerated plaques on abdomen or medial thighs. Eosinophilic granuloma – nodules (may be ulcerated) on thighs, face or mouth.
3 causes of eosinophilic and granulomatous dermatitis
Parasite reaction – Insect bite hypersenstivity – Foreign body reaction
cutaneous habronemiasis (“Summer sores”
2 nd most common autoimmune skin disease
Discoid Lupus Erythematosus
Generalized sub q edema caused by what 3 things?
increased hydrostatic/decreased oncotic pressure due to hypoproteinemia, increased permeability(vasculitis), lymph dysfxn
Example of ??
sub q edema
true or false
biopsy is definitive and indicative of subq edema
false
not worth the biopsy
Primary hemostasis defect (Vasculitis vs thrombocytopenia)
Petechia & Ecchymoses
MDx: Multifocal cutaneous ecchymotic hemorrhages
Causes – Vasculitis • Erysipelothrix rhusiopathiae • Gram negative septicemias - Salmonella, Pasteurella, E. coli • E. coli shiga toxin 2e (damages endothelium) “Edema Disease” • Spider/snake bite • Drug reaction • Secondary to ulceration – Frost bite – Toxins causing extreme vasoconstriction (ergot)
infarcts
Name dz
Diamond skin disease
Mdx?
MDx: Cutaneous ecchymotic hemorrhages
Type III hypersensitivity immune-mediated vasculitis
Purpura hemorrhagica
this goat doesnt bahhhhh its brrrrrssss
frostbite
these welts are called ____ by real time doctor folk
wheals
What is always the pathological process of wheals
vascular disorder
– superficial dermis
Urticaria (“Hives”)
– dermis + subcutis
Angioedema
Hypotrichosis
Collagen Dysplasia
Epitheliogenesis Imperfecta
Ichthyosis
crocodile cow
Ichthyosis
bilateral symmetrical and hyperpigmentation is an alopecia robably caused by an ____ disorder
endocrine
the thick pink on top is an example
Acanthosis – increased thickness of stratums basale and spinosum • Hyperkeratosis – increased thickness of stratum corneum
if rory was gross she would be getting this ……..
Primary Idiopathic Seborrhea
true or false
this is an example copper responsive dermatosis
false
zinc
this ouchie pig has?????
parakeratosis
these deep crusty lesions are what in a pig
parakeratosis
Dennis’s favorite animal the wombat has what the shit going on???
Sarcoptic Mange
You gonna be hugging this nasty fox??
hell no zoonotic Sarcoptic Mange
Raised, irregular patch of thickened skin developing from chronic friction, usually over pressure points
callus
Skin tumor that is not a true neoplasm
Follicular cyst
Skin tumor that is not a true neoplasm
Nodular sebaceous hyperplasia
Skin tumor that is not a true neoplasm
Collagenous hamartoma
Low numbers of spindle cells, some mixed leukocytes
Cutaneous Soft Tissue Sarcomas (spindle cell tumors)
viral genes inactivate host tumor-suppressor proteins • Benign, spontaneously regress • Gross: horny cauliflower-like masses
papillomas
caused by what virus?
canine papillomavirus
What is the Mdx?
cutaneous fibropapillomas
Caused by bovine papilloma virus in horses
sarcoids
sarcoid
solar radiation, chronic injury commonly involved
Squamous cell carcinoma
this occurs at places of chronic fly strike
Bilateral squamous cell carcinoma in ear tips
Benign growth of dogs
Sebaceous adenoma
Benign growth of dogs >>> cats
lipoma
Dog - behavior varies with grade but all considered potentially malignant • Cats, horses - benign • Gross: – Can look like anything – Often resembles inflammation
Mast cell tumors
Dogs, mostly young, but any age • Head, ears, neck, distal forelegs • Gross: dome-shaped • Cyto: round cells • Langerhans’ cell origin (epidermal dendritic antigen-presenting cell) • Benign, often spontaneously regress
histiocytoma
Gross: usually dark brown • Histo: characteristic “junctional change” (in nonulcerated biopsies!)
Melanoma
Pathogenisis?
solar radiation
Epitheliotropic – T-cells • Nonepitheliotropic – T or B cells
cutaneous lymphoma
Name the black pigment
melanin
This hyperpigmentation is indicative of what dz?
endocrine
hyperadrenocorticism
Cushings
Flea allergy dermatitis can lead to this pigment deposit?
hypermelanosis
hyperpigmentation
This dog with discoid lupus is undergoing what pigment change?
hypopigmentation
Name the dz
lethal white syndrome
Is this cow suffering from photosensitization?
no
Cow with acquired hypomelanosis (depigmentation) due to copper deficiency
This Arabian Fading Syndrome or vitilgo what is teh Mdx?
MDx: Focal leukoderma/leukotrichia
What is the dz and the Mdx?
MDx: Cutaneous hypopigmentation (leukoderma) Disease: Vitiligo
What pigment is this?
Calicification
Mild granulomatous inflammation surrounds deposits of calcium within the dermal and subcutaneous connective tissue.
calcinosis circumscripta
calcinosis circumscripta
inherited in the Chinese Shar-Pei – Myxedema with hypothyroidism
Mucinosis
What can cause this?
hypoproteinemia
increased permeability
vasculitis
increased hydrostatic and decreased oncogenic pressure of vessels
lymphatic disfxn
How do you tell if this petechial and ecchymoses is from congestion or hemorrhage?
If you press on congestion spot it will blanch out hten become red again
If you press on a spot from a hemorrhage it stays red
These infarcts are caused by what dz?
diamond skin dz
Type III hypersensitivity immune-mediated vasculitis • Cause: Streptococcus equi infection (rarely with other infections or vaccinations) • Gross: Red or purple macules or patches (hemorrhage or infarct) in the skin or mucous membranes
Purpura hemorrhagica
dry gangrene can result from this …
Formation of ice crystals which physically disrupt cells – Vasoconstriction and endothelial damage reduced blood flow thrombosis infarction
frost bite
What is this?
wheal
This is urticaria (if only superficial) / Angioedema (if dermis and subq) do you dx with histo?
no not worth your time
This is zoonotic……
sarcoptic mange
ewe. should u wear gloves?
Mdx?
Etiology?
yes
Mdx: proliferative dermatitis
Edx: Poxviral stomatitis
albinism
Name some Ddx for this horse lesion (plaque)
summer sores
habrenema/draschia
sarcoids
This is from bovine papilloma virus in a horse
sarcoids
Mdx?
Perianal melenoma
puppy strangles
Chilly birds have …..
frostbite
How can you tell this is a chronic issue with allergies
Lichenification
increased bilateral symmetrical alopecia and hyperpigmentation . hyperkeratosis
What are these lesions?
epidermal collarette
Whats the dz!!!!!!!!!!!
greasy pig dz
What virus can give sheep this crusty nose?
blue tongue
This sheep has??????
photosensitization
This goatie goat has????
ORF
This little calf has _____ on his nose
dermatophilosis
this is specific to cats
feline eosinophillic plaque
This dog has evidence of what on his ear? lots of macrophages!!!
leproid granule
What is this dog mento lesion?!?!?!
histiocytoma
1 2
3 4
1 photosensitization 2 calcinosis circumscripta
3 eosinophillic granuloma complex 4sarcoids
