Cytopathology of Epithelial Cells Flashcards
Dr. Short
What are the characteristics of epithelial cells?
Type?
epithelial cells - “fried egg appearance”
Type?
cornified epithelial cell
What are characteristics of papillomas? Cytology?
Many types
Exophytic: classic papilloma, “wart”, cauliflower
Resemble normal squamous epithelial cells, may be large, ovoid to spindled
Type?
papilloma (epithelial)
What are characteristics of a sebaceous adenoma?
common - limbs, trunk, eyelids in dogs
What do sebaceous adenomas look like?
typically solitary, raise, smooth, or lobular “wartlike”
What do sebaceous adenomas look like on cytology?
cluster of well-differentiated spbocytes - abundant amount of vacuolated cytoplasm
How do you differentiate a sebaceous tumor from a papilloma?
SAs are more pedunculated and pink
What are sebaceous hyperplasias?
appear very much like SA, both visually and cytologically
What are sebaceous carcinomas?
uncommon, low-grade, locally invade
What are perianal adenomas? Who is more commonly affected?
circumanal gland tumors. hepatoid gland tumors
typically older, intact males - likely androgen responsive
What do perianal gland tumors look like on cytology?
presence of cells that appear similar to hepatocytes: round, abundant, fine granular, pink-blue cytoplasm
What are the apocrine gland tumors?
- AGASACA
- ceruminous gland (ear)
- sweat gland adenomas
What are the characteristics of AGASACA? How does it appear?
Has neuro-endocrine tumor appearance but not officially of that cell type
Appears as mass affixed to anal sac
AGASACA is malignant. What is it associated with?
hypercalcemia of malignancy → +/- renal disease
metastatic to lymph nodes and locally invasive
What does AGASACA cytology look like?
Clusters/sheets moderate sized cells, round nuclei with stippled chromatin, moderate pale cytoplasm, borders may not be distinct
What are characteristics of cerunimous gland adenoma/adenocarcinoma?
most aural neoplasia is malignant
cystomatosis
What is this?
AGASACA
Pathology?
ceruminous gland adenocarcinoma