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Bizarre leiomyoma of the prostate
P Károlyi1, P Endes, G Krasznai
1Hetényi Géza County Hospital, Department of Pathology, Hungary.
Virchows Archiv. A, Pathological Anatomy and Histopathology
|January 1, 1988
Summary
A rare prostatic bizarre leiomyoma, initially suspected as malignant, was diagnosed in a 49-year-old man. Advanced diagnostic methods confirmed its benign nature, excluding malignancy through euploid polyploidy.
Area of Science:
- Uropathology
- Surgical Pathology
- Oncology
Background:
- Prostatic tumors can cause urethral obstruction, necessitating surgical intervention like prostatectomy.
- Mesenchymal tumors of the prostate are rare and can present diagnostic challenges.
Observation:
- A 49-year-old man presented with urethral obstruction due to a prostatic tumor.
- Initial histology showed a cellular, vascular tumor with significant atypia, raising suspicion for malignancy.
- Despite initial concerns, extensive follow-up and advanced testing were negative for malignancy.
Findings:
- The prostatic tumor was ultimately diagnosed as a bizarre leiomyoma.
- Electron microscopy confirmed smooth muscle cell origin.
- Feulgen-cytophotometry demonstrated euploid polyploidy, excluding malignancy.
Implications:
- This case highlights the first documented prostatic bizarre leiomyoma with confirmed benignity via euploid polyploidy.
- It underscores the importance of sophisticated diagnostic techniques in differentiating benign from malignant prostatic mesenchymal tumors.
- The findings emphasize the need for advanced methods in routine diagnostic pathology for accurate tumor classification.