Work

Intra-abdominal seminoma in polyorchidism with ipsilateral vanishing testis syndrome: A rare case report

Year: 2025

Type: article

Abstract: Polyorchidism is a rare anomaly, often associated with cryptorchidism and risk of malignancy. Vanishing testis syndrome results from antenatal torsion with resorption. A 38-year-old male with prior orchiectomy for atrophic testis presented with abdominal pain. Imaging revealed a 12 cm pelvic mass. Resection confirmed pure seminoma with epididymis and rete testis but no viable parenchyma. Review of prior histology showed features of testicular regression. This case demonstrates malignant transformation in a supernumerary intra-abdominal testis with ipsilateral regression, highlighting the importance of histological review and long-term vigilance. • Rare coexistence of polyorchidism and vanishing testis syndrome reported • Seminoma developed in a supernumerary intra-abdominal testis • Prior orchiectomy specimen showed testicular regression features • First case describing malignant change with ipsilateral regression and triorchidism

Source: Urology Case Reports

DOI: 10.1016/j.eucr.2025.103296

Authors: Joshua David Bruinsma, Matthew Chau, Hugo C. Temperley, Nicole Swarbrick, Mikhail Lozinskiy

Institutions: Royal Perth Hospital, Trinity College Dublin, St. James's Hospital, The University of Western Australia

Language: English

Topic: Testicular diseases and treatments

Subfield: Surgery

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $1,160