J Vet Sci.  2000 Dec;1(2):73-75.

Morphological structure of accessory spleen in Chinese hamsters

Abstract

To attempt a rigorous definition of the structure of the accessory spleen (AS) in the Chinese hamster, we examined twenty-one animals, and found AS in 5 animals (23.8%), which were over 7-month-old. The AS had no connection with the main spleen and was seen as a dark red oval organ (0.7 mm x 1.5 mm), which was embedded in the adipose tissue near the tail of the pancreas. It was demarcated from the adipose tissue and some pancreatic tissue. The organ was encapsulated by thin collagenous connective tissue and smooth muscle fibers, and contained lymphatic nodules, reticular fibers, nodular central arterioles, macrophages and megakaryocytes. Notably the incidence of AS appeared to increase with age in the Chinese hamsters.

Keyword

accessory spleen; chinese hamster; histology

MeSH Terms

Adipose Tissue/anatomy & histology
Age Factors
Animals
Connective Tissue/anatomy & histology
Cricetinae
Cricetulus/*anatomy & histology
Erythrocytes/cytology
Lymphocytes/cytology
Muscle, Smooth/anatomy & histology
Pancreas
Spleen/*anatomy & histology/cytology
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