We report a rare case of a left ejaculatory duct that allotropically protrudes towards or invades the left vesicle triangular area with its dead end. The patient simultaneously exhibited multiple congenital malformations of the homolateral urogenital system, such as absence of the left kidney, dysplasia and allotopia of the left seminal vesicle, absence of the left ureterostoma, separation between the left testis and the epididymis tail, and maldevelopment of the left testis. According to all clinical and laboratory evidence, the case represented a new syndrome, which we named Wuyang's syndrome. It involved a rare phenomenon in embryonic development; the dysplastic proximal vas precursor, having intruded into a common mesonephric duct and accidentally encroaching on the ureteric bud position, resulted in the absence or dysplasia of the homolateral urinary tract and ectopic invasion of the bladder by the homolateral seminal tract.
Abnormalities, Multiple ; pathology ; surgery ; Adult ; Ejaculatory Ducts ; abnormalities ; pathology ; surgery ; Humans ; Magnetic Resonance Imaging ; Male ; Syndrome ; Ureter ; abnormalities ; Urinary Bladder ; abnormalities ; pathology ; surgery ; Wolffian Ducts ; abnormalities

OBJECTIVETo report a rare case of ectopic mesonephric duct cyst with ectopic testicular malignancy and improve the diagnosis and treatment of the disease.

METHODSWe retrospectively analyzed the clinical data of a case of ectopic mesonephric duct cyst with ectopic testicular malignancy, reviewed relevant literature at home and abroad, and investigated the pathogenesis, diagnosis and treatment of the disease.

RESULTSA large cyst and the right ectopic malignant testis were removed via abdominal incision, and the left undescended testis was lowered into the scrotum. Pathological examination confirmed the lesion to be right ectopic mesonephric duct cyst with right ectopic testicular seminoma. No metastasis was found during a year of follow-up.

CONCLUSIONEctopic mesonephric duct cyst with ectopic testicular malignancy was a rare disease. Imaging examination contributes to its diagnosis, but it has to be confirmed by pathology. Surgical removal should be performed as early as possible and follow-up treatment depends on the pathologic type and stage of ectopic testicular malignancy.

Cryptorchidism ; therapy ; Cysts ; pathology ; Humans ; Male ; Neoplasms, Germ Cell and Embryonal ; surgery ; Seminoma ; surgery ; Testicular Neoplasms ; surgery ; Testis ; surgery ; Wolffian Ducts ; pathology

A 5 year-old, intact female Yorkshire terrier was referred for dysuria and dyschezia. The radiographic and ultrasound examination showed a round shaped mass caudal to the urinary bladder that contained anechoic fluid within the thin walls. During surgery, the cyst was noted to be attached to the outer wall of the vagina, not connected to the vaginal lumen. Cystic fluid was removed and the cystic wall was resected. Then the remaining cystic wall was omentalized to prevent a recurrence. Histological examination confirmed that the cyst was of Wolffian duct origin. In this case, a large Gartner duct cyst causing urological problems was diagnosed and removed by surgical resection.
Animals ; Constipation/etiology/veterinary ; Cysts/surgery/ultrasonography/*veterinary ; Dog Diseases/*pathology/surgery/ultrasonography ; Dogs ; Dysuria/etiology/veterinary ; Female ; Treatment Outcome ; Vaginal Diseases/complications/pathology/surgery/*veterinary ; Wolffian Ducts/*pathology/surgery