Abstract
Editor:
The article “Teratoma in a feline unilateral cryptorchid testis”4 is a good account of feline testis physiopathology; tumors are rare in this species and consequently are difficult to study. However, the authors stated that “only two cases [of testicular neoplasms in cats] have been reported,” referring to Meier's 1956 report.3
I reported a case of metastatic Sertoli cell tumor in a cryptorchid cat testis as an oral communication in the eighth meeting of the Sociedade Portuguesa de Patologia Animal, 16 May 1997, a summary of which was later published in the Revista Portuguesa de Ciências Veterinárias.9 In that study, I tried to trace the immunocytochemical profile of the neoplastic cells with anti–neuron specific enolase (NSE) - (BBS/NC/VI-H14; Dako), anti-vimentin (Vim 3B4, Dako), anti-cytokeratins (MNF116, Dako), and anti-desmin (DE-R-11, Dako) monoclonal antibodies. As with the dog,5 NSE proved to be a useful marker for normal8,10 and neoplastic9 Sertoli cells. Other cases of feline testis tumors have been reported: another case of Sertoli cell tumor,1 a possible rete testis tumor,6 Leydig cell tumors,11 an ectopic Leydig cell tumor,7 and teratoma.2