La osteomielitis aguda y el tumor de Ewing, dos entidades de naturaleza
bien distinta, pueden mostrar semejanzas clínicas y radiográficas. Presentamos un caso
de tumor de Ewing clásico y dos de osteomielitis que plantearon sendas dudas diagnósticas.
Concluimos insistiendo en la importancia de un diagnóstico diferencial definitivo
precoz mediante biopsia y cultivo en estas circunstancias.Acute osteomyelitis and Ewing's sarcoma are diseases of quite different
natur e which may show similar clinical and radiographic characteristics. The author s
present a case of classic Ewing's sarcoma ant two case s of osteomyelitis that suposed
diagnosti c doubts in each case . They conclude emphasizing on the importanc e of an
early, definitive differential diagnosis in thes e circunstance s by means of a biopsy and
bacteriologic culture
