Key result
Critical evaluation of adult rhabdomyosarcoma diagnoses confirms true disease in only 8% of patients.
Why the study?
True rhabdomyosarcoma in patients older than 40 years is very rare and requires accurate diagnosis due to its distinct clinicopathologic properties and prognosis.
Population
25 patients older than 40 years with original diagnosis of rhabdomyosarcoma
Comparison
True rhabdomyosarcoma versus other pleomorphic or spindle cell sarcomas
Design
Retrospective observational case series with histology, immunohistochemistry, and electron microscopy evaluation
Authors
Loading...
True rhabdomyosarcoma appears rare with dismal survival in adults >40; leaves open whether stricter criteria improve classification and prognostication.
Observational (n=25)
True rhabdomyosarcoma is very rare in patients over 40 and carries a worse prognosis than other pleomorphic sarcomas, emphasizing the need for accurate diagnosis.
Markku Miettinen (1988) conducted an observational in Rhabdomyosarcoma (n=25). Original diagnosis of rhabdomyosarcoma was evaluated on Verification of true rhabdomyosarcoma by strict criteria. Critical evaluation of 25 patients older than 40 years originally diagnosed with rhabdomyosarcoma revealed that only 8% (2 patients) had true rhabdomyosarcoma by strict criteria.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: