title: Cytological features of ossifying fibromyxoid tumor of soft parts.
abstract: A case of ossifying fibromyxoid tumor (OFMT) evaluated during an intraoperative pathological consultation is presented. The patient, a 70-year-old woman was being followed because of a tumor in the left buttock. Cytological smears were obtained after scrapping the tumoral cut surface and revealed a myxoid background with fragments composed of a denser, fibrillar metachromatic stroma with accompanying round to oval tumoral nuclei and no vessels. Single cells were predominantly monomorphic with a round to oval morphology and scarce cytoplasm. The most relevant feature of the tumor was its peripheral, plaque-like, calcified consistency. The review of the cytological descriptions of four cases revealed similar findings that can be presumed as those of a low-grade myxoid tumor of round to oval cells. A specific recognition of OFMT based solely on cytological features seems difficult. However, when such features are coupled with characteristic radiological findings (peripheral calcification) this entity must be considered.
authors.affiliation: Department of Pathology, Hospital La Zarzuela, Madrid, Spain.
authors.forename: F
authors.initials: F
authors.lastname: Alvarez-Rodríguez
authors.forename: Ja
authors.initials: J
authors.lastname: Jiménez-Heffernan
authors.forename: C
authors.initials: C
authors.lastname: Salas
authors.forename: M
authors.initials: M
authors.lastname: Pastrana
authors.forename: E
authors.initials: E
authors.lastname: Sanz
keywords: Cytology; ossifying fibromyxoid tumor; soft tissue tumors