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Pelvic sarcoma arising from chronic osteomyelitis

Gulmann et al reported on a case of chronic osteomyelitis presenting as a mass of the chest mimicking a soft tissue sarcoma.1 The authors suggested that, although chronic osteomyelitis is a known cause of confusion with bone tumours, a definitive diagnosis is feasible by specific immunohistochemical staining.

However, the potential risk of transformation of chronic osteomyelitis into a malignant lesion is an unforgettable point both for the clinician and the pathologist.2 Two years ago, we encountered a patient developing a rapidly aggressive sarcoma with …