THE MICROMORPHOLOGY OF CANINE PERIANAL SKIN GLANDS WITH EMPHASIS ON HEPATOID CIRCUMANAL GLAND
THE MICROMORPHOLOGY OF CANINE PERIANAL SKIN GLANDS WITH EMPHASIS ON HEPATOID CIRCUMANAL GLAND
No Thumbnail Available
Date
1989
Authors
OGUNKOYA, Yetunde Olufunmilayo
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The canine perianal skin forms part of the region
referred to as the perineum. Three types of glands,
sebaceous, sweat, and hepatoid circumanal glands (HCGS)
are present in the skin of this area. Not much is
known about the micromorphology of the hepatoid
circumanal gland, and yet this gland is a leading
source of neoplasia in the canines. The aim is,
therefore, as a start, to establish the micromorphology
of this region.
A total of 10 dogs, comprising of 5 puppies and 5
adults of both sexes and local breed were utilized for
this study.
The light microscopy revealed that the canine
perianal skin was composed of the usual layers
encountered in any normal skin. But the skin of this
area had three types of glands the sebaceous, sweat and
hepatoid circumanal glands. Both the sebaceous and the
sweat glands revealed the normal components.
The hepatoid circumanal gland was composed of
polyhedral or polygonal non-vacuolated cells and were
found in both sexes. These glands were ductless.
There were usually two glands separated by a hair
follicle. A gland was made of 20 lobules or more.
The electron microscopy revealed that the HCG
cells contained the usual organelles encountered in a
normal cell. These cells had a high profile of smooth
endoplasmic reticulum (SER), mitochondria of different
Description
A thesis
Submitted to Ahmadu Bello University
Zaria in Partial Fulfillment for the
Degree of
MASTER OF SCIENCE
Department of Veterinary Anatomy,
Faculty of Veterinary Medicine
Ahmadu Bello University,
Zaria-Nigeria.
1989
Keywords
MICROMORPHOLOGY,, CANINE PERIANAL SKIN GLANDS,, EMPHASIS ON HEPATOID CIRCUMANAL GLAND