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Case Reports
. 2002 Dec;4(4):205-7.
doi: 10.1053/jfms.2002.0174.

Anal sac adenocarcinoma in a Siamese cat

R J Mellanby  1 , R Foale, E Friend, N Woodger, M E Herrtage, J D Dobson
Affiliations
Case Reports

Anal sac adenocarcinoma in a Siamese cat

R J Mellanby et al. J Feline Med Surg. 2002 Dec.

Abstract

A 12-year-old male neutered Siamese cat presented with a history of inappetance and lethargy and an enlarged left anal sac. The anal sac was surgically excised and histopathology confirmed the diagnosis of anal sac adenocarcinoma. Perianal tumours are rare in the cat and anal sac adenocarcinoma has not been previously reported. This is in contrast to the dog where anal sac adenocarcinoma is a well recognised albeit uncommon tumour.

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Figures

Fig 1.
Fig 1.
Low power view (x20) of adenocarcinoma tissue (long arrow) associated with the collapsed anal sac (Hematoxylin and Eosin). The short arrow indicates epidermal lining of the anal sac remnant. There is infiltration into adjacent external anal sphincter muscle (arrowhead).
Fig 2.
Fig 2.
High power view (x200) showing irregular acini containing degenerate cellular debris (arrowhead) and lined by a cuboidal epithelium exhibiting marked cellular pleomorpism (Hematoxylin and Eosin). The majority of the tumour comprised disorganised lobules and cords, shown on the left of the figure.
See this image and copyright information in PMC

References

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