S Vural, H Keles, M Haligur
animal, hydatid cyst, internal organs, pathology
S Vural, H Keles, M Haligur. Unilocular Splenic Hydatidosis In A Sheep. The Internet Journal of Veterinary Medicine. 2004 Volume 2 Number 1.
A pathomorphological definition of a hydatid cyst located on the facies diaphragmatica of the spleen in a 1.5 year old sheep provided from a slaughterhouse was performed in this study.
The spleen belonging to a 1.5 year old sheep revealed to have a hydatid cyst. The material was processed in accordance with routine histological procedures, fixed in 10% formalin solution and stained with Hematoxylin and Eosin (HE).
Macroscopical examination revealed the presence of a single cyst filled with clear fluid located in the center of the facies diaphragmatica of the spleen, detected to protrude from the surface and to measure 3.5x3.5x4 cm (Fig 1). The cyst was observed to be distinctively separated from surrounding tissue with a thin and light yellow colored wall. Upon drainage of the fluid, the inner surface of the cyst wall was observed to gain a folded appearance and to display numerous white colored granular structures (Fig 2).
On the other hand, microscopical examination revealed two different appearances specific to the cyst and the host. The outer wall of the cyst was detected to be light pinkish in color and to be formed of hyalinous cuticular membrane (Fig 3).
The germinative layer was assessed to exist below the outer wall. Necrotic material and many giant cells, surrounded by an outer layer comprised of macrophages, lymphocytes and a few numbers of epithelioid histiocytes were present at the periphery of the cyst wall (Fig 4). The area in which the cyst was located was surrounded by a thin fibrous capsule from the external.
Hydatidosis (echinococcosis) caused by
We would like to extend our gratitude to Veterinarian Mr. M. Akif Topcu for its assistance in the supply of the study material.
Sevil ATALAY VURAL, Ass. Prof., Ankara University, Faculty of Veterinary Medicine, Department of Pathology, 06110-D??kap?-Ankara-Turkey Tel: (+90) 312 3170315 Fax: (+90) 312 3164472 e-mail: firstname.lastname@example.org