Hernia uterine inguinale with transverse testicular ectopia and mixed germ cell tumor

Area of Science:

• Endocrinology
• Reproductive Biology
• Medical Genetics

Background:

• Persistent Mullerian Duct Syndrome (PMDS) is a rare disorder in 46XY individuals, characterized by the presence of Müllerian duct derivatives (uterus, fallopian tubes) due to anti-Müllerian hormone (AMH) pathway defects.
• Defects in AMH synthesis or action are the primary cause of PMDS, leading to the persistence of Müllerian structures typically found in females.

Observation:

• This report details an exceptionally rare case of hernia uteri inguinale and transverse testicular ectopia (TTE) in a patient with a mixed germ cell tumor of the testis with metastasis.
• The patient presented with unilateral inguinal hernia and a contralateral nonpalpable testis, suggesting the possibility of TTE.

Findings:

• The co-occurrence of hernia uteri inguinale, TTE, and testicular malignancy is exceedingly uncommon.
• Preoperative suspicion of TTE in cases of unilateral inguinal hernia with a contralateral nonpalpable testis is crucial.

Implications:

• Ultrasonography prior to inguinal hernia repair is recommended in such cases to detect Müllerian structures and potential testicular malignancy.
• Early diagnosis and management of associated conditions like TTE and testicular tumors can significantly improve patient prognosis and treatment strategies.