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Related Experiment Video

Updated: Jun 18, 2026

Robotic Enucleation of Esophageal Leiomyoma
04:19

Robotic Enucleation of Esophageal Leiomyoma

Published on: February 20, 2026

[Epididymal leiomyoma: a case report].

Yujiro Ito1, Koshiro Nishimoto, Kentaro Ogata

  • 1The Department of Urology, Federation of National Public Service Personnel Mutual Aid Associations Tachikawa Hospital.

Hinyokika Kiyo. Acta Urologica Japonica
|November 21, 2009
PubMed
Summary

A paratesticular tumor in a 30-year-old male, initially suspected as malignant on MRI, was diagnosed as a benign epididymal leiomyoma after surgical removal. This case highlights the importance of pathological confirmation for scrotal masses.

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Area of Science:

  • Urology
  • Pathology
  • Radiology

Background:

  • Undescended testes in childhood increase the risk of testicular and paratesticular pathologies.
  • Paratesticular tumors require accurate diagnosis to differentiate benign from malignant conditions.

Observation:

  • A 30-year-old male with a history of orchiopexy presented with painless right hemiscrotal swelling.
  • Ultrasonography and MRI revealed an enhancing paratesticular tumor with diffusion restriction, raising concerns for malignancy.

Findings:

  • High inguinal orchiectomy was performed for the paratesticular mass.
  • Pathological examination confirmed the tumor to be a benign leiomyoma of the epididymis.

Implications:

  • This case underscores that imaging findings suggestive of malignancy do not always equate to cancer.

Related Experiment Videos

Last Updated: Jun 18, 2026

Robotic Enucleation of Esophageal Leiomyoma
04:19

Robotic Enucleation of Esophageal Leiomyoma

Published on: February 20, 2026

  • Benign conditions like epididymal leiomyoma can mimic malignant paratesticular tumors, necessitating surgical excision and histopathological analysis for definitive diagnosis.