Pathoma: Epithelial Tumors Flashcards
Describe seborrheic keratoses.
Benign proliferations of squamous cells, commonly seen in the elderly; gray; often on appendicular skin.
Histologically, seborrheic keratoses have __________.
circles of dense keratin
Multiple seborrheic keratoses appearing all at once is called _______.
Leser-Trelat sign
In addition to appearing on insulin-resistant diabetics, acanthosis nigricans also can co-occur with _______.
malignancy
Xeroderma pigmentosum leads to an increase in _______.
basal cell carcinoma and squamous cell carcinoma
The most common cancer to arise out of immunosuppression is ____________.
squamous cell carcinoma
BCC usually appears on the ________ lip, while SCC usually appears on the ________.
upper; lower
________ usually appear and regress quickly.
Keratoacanthoma