29/04/2015
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Lymphoid (porcine)
1
Splenomegaly and peritoneal lesions in a pig carcass
The histopathological study showed, both in the spleen and in the peritoneal lesions, a neoplastic round cell proliferation surrounded by an abundant proliferation of connective tissue. Polymorphonuclear eosinophilic leukocytes could be observed infiltrating this tissue. Morphological diagnosis was compatible with a Mastocytoma.
To confirm the diagnosis immunohistochemistry against C-kit receptor was done, with a positive outcome. Toluidin Blue stain revealed the presence of intracytoplasmic granules in the neoplastic mast cells.
It is a rare neoplasm in pigs, we had previously described a case affecting the skin: Cutaneous Mastocytoma.
1 comment(s)
Comments from Veterinary Pathology groups in LinkedIn:
by LuAnn mckinney:
Nice case! Thanks for sharing.
by Ana Rosa De Sousa Resendes:
beautiful case! thanks for sharing
by Norman Barlow:
That was a surprise diagnosis in a 6-month old pig.