Persistent Mullerian duct syndrome with transverse testicular ectopia and seminoma

Area of Science:

• Reproductive Medicine
• Genetics
• Pediatric Surgery

Background:

• Persistent Mullerian duct syndrome (PMDS) is a rare disorder of sexual differentiation in 46 XY males, characterized by the presence of Müllerian structures (uterus, fallopian tubes).
• PMDS results from the failure of Müllerian duct regression, a process crucial for normal male sexual development.
• Over 150 cases are documented, predominantly diagnosed in adults, often incidentally during surgeries for other conditions.

Observation:

• PMDS is frequently discovered during surgical repair of inguinal hernias or cryptorchidism (undescended testes).
• Transverse testicular ectopia (TTE), where both testes descend via a single inguinal canal, is an uncommon presentation associated with PMDS.
• Patients with TTE may present with symptoms mimicking unilateral cryptorchidism and a contralateral inguinal hernia.

Findings:

• The co-occurrence of PMDS and TTE is rare, posing diagnostic challenges.
• Radiological evaluations like ultrasonography and MRI, along with karyotyping, are recommended for patients with inguinal hernia and cryptorchidism associated with TTE.
• While imaging aids in diagnosing TTE, it does not diagnose potential associated malignancies.

Implications:

• This case report aims to provide urologists with valuable treatment strategies for managing patients with inguinal hernia, cryptorchidism, and co-existing TTE.
• Increased awareness of PMDS in the context of TTE can lead to earlier diagnosis and appropriate management.
• Further research into the underlying mechanisms and optimal management of PMDS with TTE is warranted.