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Updated: May 28, 2026

Teratoma Generation in the Testis Capsule
Published on: November 7, 2011
Adenomatoid tumor of the testis in a child
Wei Liu1, Rong-de Wu, Qi-hai Yu
1Department of Pediatric Surgery, Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, China.
Abstract:
Adenomatoid tumors are rare benign neoplasms thought to be of mesothelial origin. Although most reported cases arise from the epididymis, rare cases have been reported in the spermatic cord, testicular tunica, ejaculatory ducts, prostate, and suprarenal recess. We describe a 4.5-year-old boy who presented with a relatively asymptomatic right testicular mass that was resected and confirmed to be adenomatoid tumor of the testis by histopathology. Because of its rarity, the clinical and histopathologic aspects are discussed.
Insights
This study reports a rare case of an adenomatoid tumor in a young boy's testis. Histopathology confirmed the benign neoplasm, highlighting its unusual presentation and location.
Area of Science:
- Urology
- Pathology
- Pediatric Oncology
Background:
- Adenomatoid tumors are uncommon benign neoplasms.
- They are typically of mesothelial origin.
- Most cases originate in the epididymis, but other locations are rare.
Observation:
- A 4.5-year-old boy presented with a testicular mass.
- The mass was largely asymptomatic.
- Surgical resection was performed.
Findings:
- Histopathology confirmed the mass as an adenomatoid tumor of the testis.
- This represents a rare occurrence of this tumor type in this specific location.
- The tumor was benign.
Implications:
- This case expands the known locations for adenomatoid tumors.
- It underscores the importance of considering rare diagnoses in pediatric testicular masses.
- Further understanding of the clinical and histopathologic features is warranted.
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