A 14 year old MI Poodle canine presented for history of possible retained testicle. Clinical exam revealed an empty scrotal sac and lack of typical incision scar from a hypothetical neuter surgery. Rectal palpation revealed a prominent prostate.
Clinical Differential Diagnosis
The prostate demonstrated relatively uniform enlargement with some urethral impingement. Nebulous hyperechoic parenchyma intercalated with focal hypoechoic changes suggestive of either chronic inflammatory episodes, benign cystic pathology or both. Underlying neoplasia is possible but lower on the differential list. Fine needle aspirate or a biopsy (preferred) following coagulation assessment would need to be performed in order to define the pathology at the cellular or structural level respectively. No overt abscess or obvious neoplasia was present. This presentation is most consistent with benign prostatic hyperplasia with possible chronic active prostatitis. The prostate measured 2.3cm in diameter. A right cryptorchid testicle was present at the level of L4 to the cranial right position of the urinary bladder apex. This measured 1.7cm with a mild amount of structural loss. This could represent an emerging Sertoli cell tumor. The left inguinal ring demonstrated a second left cryptorchid testicle measuring 1.4cm adjacent to the prostate.