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Extraskeletal osteosarcoma of penis: a case report
Chuan-Zhen Wu1, Cheng-Mei Li, Song Han
1Department of Pathology, the 208th Hospital of PLA, Changchun 130062, China.
Chinese Journal of Cancer Research = Chung-Kuo Yen Cheng Yen Chiu
|January 30, 2013
Summary
Extraskeletal osteosarcoma (EOS) is a rare soft tissue tumor. This case report details an extremely rare penile EOS, aiding in recognizing its clinical, imaging, and histopathological features.
Area of Science:
- Oncology
- Pathology
- Urology
Background:
- Extraskeletal osteosarcoma (EOS) is a rare malignant tumor lacking significant differentiation from other soft tissue malignancies.
- Commonly observed in the retroperitoneum, limbs, and head/neck, EOS presents with localized pain and swelling.
- Accurate diagnosis is challenging, necessitating advanced imaging and definitive histopathological analysis.
Observation:
- This report presents an exceptionally rare case of extraskeletal osteosarcoma originating in the penis.
- The tumor's primary site and specific histological classification are highly unusual within the spectrum of EOS.
Findings:
- Histological variants include osteoblastoma, chondroblastoma, and fibroblastoma, with rare subtypes occasionally reported.
- Differential diagnosis is crucial, distinguishing EOS from conditions like myositis ossificans, malignant mesenchymoma, giant cell tumor, and parosteal osteosarcoma.
Implications:
- This case contributes valuable insights for the clinical recognition, diagnostic imaging, and histopathological assessment of rare extraskeletal osteosarcoma presentations.
- Understanding these rare occurrences enhances diagnostic accuracy and informs potential treatment strategies for this uncommon malignancy.
