title: [Breast hematoma masking a sarcoma].
abstract: Sarcomas account for less than 1% of malignant breast tumors. We present the case of a sarcoma (malignant fibrous histiocytoma) of the breast that debuted as a lump. The patient associated the lump with trauma, and the clinical, sonographic, and cytological findings were suggestive of a hematoma. The lump grew rapidly, and the follow-up sonogram one month later clearly revealed hypervascular solid poles. This atypical presentation is useful for reviewing the management of lesions suggestive of hematomas, which are often associated with nonspecific findings and occasionally with signs that raise suspicion of malignancy. The emergence of what appears to be a hematoma in the breast, even when accompanied by a history of trauma or a tendency toward bleeding, calls for prudence: very short-term follow-up and biopsy, even excisional biopsy, are recommended if the lesion does not evolve like a hematoma.
authors.affiliation: Servicio de Radiodiagnóstico, Complejo Asistencial Universitario de Palencia, España. Electronic address: arelea@yahoo.es.
authors.forename: A
authors.initials: A
authors.lastname: Relea Sarabia
authors.affiliation: Servicio de Radiodiagnóstico, Complejo Asistencial Universitario de Palencia, España.
authors.forename: S
authors.initials: S
authors.lastname: Bahamonde Cabria
authors.affiliation: Servicio de Radiodiagnóstico, Complejo Asistencial Universitario de Palencia, España.
authors.forename: M
authors.initials: M
authors.lastname: González Rebollo
authors.affiliation: Servicio de Radiodiagnóstico, Complejo Asistencial Universitario de Palencia, España.
authors.forename: M B
authors.initials: MB
authors.lastname: Encinas Gaspar
mesh_terms: D000368:Aged; D001941:Breast Diseases / Q000175:diagnosis*; D001943:Breast Neoplasms / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005260:Female; D006406:Hematoma / Q000175:diagnosis*; D006801:Humans; D012509:Sarcoma / Q000175:diagnosis*
keywords: Breast sonography; Breast tumor; Ecografía mamaria; Hematoma; Histiocitoma fibroso maligno; Malignant fibrous histiocytoma; Neoplasias mamarias; Sarcoma