Postradiation Sarcoma Clinical Presentation
- Author: Nagarjun Rao, MD, FRCPath; Chief Editor: Harris Gellman, MD more...
History
Pain is the most common complaint and is abrupt and rapid in onset, relentless and progressive, constant, and worse at night. Pain usually is not relieved with aspirin or nonsteroidal anti-inflammatory drugs (NSAIDs). Mass (soft tissue or bone), bleeding, and pathologic fracture also are reported.[18, 19] Clinical factors that favor a diagnosis of PRS include the following:
- Sarcoma in bone or soft tissue appearing at an unusual age
- Sarcoma in bone or soft tissue at an unusual site
- Addition of intensive chemotherapy to irradiation
Physical
Physical findings are localized to the irradiation area. These usually are a mass (bony or soft tissue), tenderness, and/or a pathologic fracture.
Causes
Causes are discussed in detail in Pathophysiology. While ionizing radiation is the triggering factor (a dose of 40-60 Gy is thought to be the threshold dose), other factors (eg, genetic tendency, concomitant use of chemotherapeutic agents, as yet unknown factors) appear to be responsible for development of PRS.
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