title: Parotid acinic cell carcinoma with undifferentiated spindle cell transformation.
abstract: This report describes a 59-year-old black man who had an acinic cell carcinoma with associated malignant spindle cell transformation in the parotid gland. To the best of our knowledge, a similar lesion in the salivary gland has not been previously reported.
authors.affiliation: Division of Anatomic Pathology, Mayo Clinic, Rochester, Minnesota.
authors.forename: J A
authors.initials: JA
authors.lastname: Ferreiro
authors.forename: A S
authors.initials: AS
authors.lastname: Kochar
mesh_terms: D018267:Carcinoma, Acinar Cell / Q000473:pathology*; D002296:Carcinosarcoma / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D010307:Parotid Neoplasms / Q000473:pathology*