Sebaceous hyperplasia and sebaceous adenomas are cytologically indistinguishable.
They are highly cellular and consist of multiple clusters of uniform sebaceous epithelial cells.
Grossly, sebaceous adenomas appear as pedunculated wart-like masses, whereas sebaceous hyperplasia may appear as a thickened area of skin.Nov 10, 2021.
Sebaceous cysts are secretory accumulations from the sebaceous glands.
These cutaneous lesions may occur anywhere, but are often found on the head or in the ears, particularly in animals with chronic otitis externa.
The aspirated fluid is brown and oily..
The development of sebaceous cysts is thought to develop from an obstruction of the follicles, leading to abnormal accumulations of sebum.
Sebaceous adenomas are benign tumors that originate from the landular or ductal tissue..
Sebaceous hyperplasia and sebaceous adenomas are cytologically indistinguishable.
They are highly cellular and consist of multiple clusters of uniform sebaceous epithelial cells.
Grossly, sebaceous adenomas appear as pedunculated wart-like masses, whereas sebaceous hyperplasia may appear as a thickened area of skin.
Sebaceous differentiation is associated with some basal cell tumors.
Some basal cell tumors, especially in the cat, contain variable amounts of melanin pigment and must be distinguished from true melanocytic tumors.
The cohesiveness of basal cells and the very high N:C ratio are distinguishing features.
Grossly, sebaceous adenomas appear as pedunculated wart-like masses, whereas sebaceous hyperplasia may appear as a thickened area of skin.
There are many cutaneous and subcutaneous neoplasms that are diagnosed in dogs and cats, but this article focuses on the most common tumors.
