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Sebaceous adenoma in a dog
SEBACEOUS ROBERT
ADENOMA
IN A DOG
J. GORLIN, D.D.S., M.S.,” NINNEAPOLIS,
MINN.
T
RUE sebaceous adenomas are quite rare in animals, as they are in human beings.ll 2 Although Mulligan3 cites an incidence of forty-five cases in 1,000 tumors of dogs, the photomicrographs in his book indicate that he is talking about sebaceous nevi, not sebaceous adenomas. Tf we are stringent in our definition of sebaceous adenoma and indicate that the tumor must consist of circumscribed proliferations of incompletely differentiated sebaceous glandular structures, the incidence of sebaceous adenoma, especially that involving mucous membrane surfaces, is quite low. Xchlumbcrger,4 in his excellent rcvicw, makes no mention of this tumor involving oral structures. Case Report A well-circumscribed, elevated lesion about 1 cm. in diameter was found at the junction of the skin and mucosa surface of the lower lip of a g-year-old German shepherd dog. It, was surgically removed with no untoward results.
Fig. l.-There is a thin layer of connective tissue that separates the tumor from the overlying stratifled squamous epithelium. The tumor is composed of irregularly shaped lobules separated from one another by thin strands of collagenic connective tissue. (Magnification, X 3 5 ; reduced M. ) *Chairman.
Division
of Oral
Pathology,
School of Dentistry, 304
University
of Minnesota.
SEBACEOUS
F ‘ig. 2.-Basically betwee n the generative KXlUCi3 1 vi. )
ADENOMA
two types of cells compose or basal cell and the mature
IN
DOG
the tumor sebaceous
305
with cell.
many transition (Magnification,
‘ig. S.-High-power photomicrograph illustrating the two basic types the sebaceous adenoma--sebaceous cells and basal cells. In contrast sebaceous nevus, as exemplified by Fordyce’s disease, which is composed ntiated sebaceous glands. (Magnification, x450 : reduced I/&.)
forms x.250 :
of cell s comto this tumor of con npletely
ADENOMA
IN A DOG
J. GORLIN, D.D.S., M.S.,” NINNEAPOLIS,
MINN.
T
RUE sebaceous adenomas are quite rare in animals, as they are in human beings.ll 2 Although Mulligan3 cites an incidence of forty-five cases in 1,000 tumors of dogs, the photomicrographs in his book indicate that he is talking about sebaceous nevi, not sebaceous adenomas. Tf we are stringent in our definition of sebaceous adenoma and indicate that the tumor must consist of circumscribed proliferations of incompletely differentiated sebaceous glandular structures, the incidence of sebaceous adenoma, especially that involving mucous membrane surfaces, is quite low. Xchlumbcrger,4 in his excellent rcvicw, makes no mention of this tumor involving oral structures. Case Report A well-circumscribed, elevated lesion about 1 cm. in diameter was found at the junction of the skin and mucosa surface of the lower lip of a g-year-old German shepherd dog. It, was surgically removed with no untoward results.
Fig. l.-There is a thin layer of connective tissue that separates the tumor from the overlying stratifled squamous epithelium. The tumor is composed of irregularly shaped lobules separated from one another by thin strands of collagenic connective tissue. (Magnification, X 3 5 ; reduced M. ) *Chairman.
Division
of Oral
Pathology,
School of Dentistry, 304
University
of Minnesota.
SEBACEOUS
F ‘ig. 2.-Basically betwee n the generative KXlUCi3 1 vi. )
ADENOMA
two types of cells compose or basal cell and the mature
IN
DOG
the tumor sebaceous
305
with cell.
many transition (Magnification,
‘ig. S.-High-power photomicrograph illustrating the two basic types the sebaceous adenoma--sebaceous cells and basal cells. In contrast sebaceous nevus, as exemplified by Fordyce’s disease, which is composed ntiated sebaceous glands. (Magnification, x450 : reduced I/&.)
forms x.250 :
of cell s comto this tumor of con npletely