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A large calcified retroperitoneal extraskeletal osteosarcoma with consequent bilateral hydronephrosis
M Uccello1, M Malaguarnera, M Giordano
1Research Center "The Great Senescence", Senescence, Urological, and Neurological Sciences Department, University of Catania, Catania, Italy. mario_uccello@hotmail.it
European Review for Medical and Pharmacological Sciences
|September 8, 2012
Summary
Extraskeletal osteosarcoma (ESOS) is a rare soft tissue sarcoma. This case highlights a large, bilateral retroperitoneal ESOS causing obstructive uropathy and hydronephrosis.
Area of Science:
- Oncology
- Pathology
- Radiology
Background:
- Extraskeletal osteosarcoma (ESOS) is a rare malignant mesenchymal neoplasm, comprising <4% of osteosarcomas and 1-2% of soft tissue sarcomas.
- ESOS typically arises in deep soft tissues, most commonly in the limbs, but can occur in any organ.
- Abdominal or pelvic ESOS can be challenging to diagnose pre-operatively due to potential for large size without pain and may present as calcified masses.
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