title: Inflammatory leiomyosarcoma of the retroperitoneum.
abstract: We present a case of an inflammatory leiomyosarcoma, a variant of smooth muscle cell tumor that could be mistaken for inflammatory malignant fibrous histiocytoma. The inflammatory cell infiltrates obscured the basic architecture of the tumor, and immunohistochemistry was required to arrive at the proper diagnosis. Since inflammatory leiomyosarcomas are rare and possibly misdiagnosed neoplasms, there are not enough data to indicate whether they deserve to be separated from other malignant smooth muscle cell neoplasms. By reporting this case we hope that more pathologists will become aware of this tumor type and that more cases will be collected for future clinicopathologic studies.
authors.affiliation: Department of Pathology and Department of Surgery, University of Kansas School of Medicine, Kansas City, Kansas 66160-7410, USA.
authors.forename: Anamarija
authors.initials: A
authors.lastname: Morović
authors.forename: Romano
authors.initials: R
authors.lastname: Delcore
authors.forename: Ivan
authors.initials: I
authors.lastname: Damjanov
mesh_terms: D000368:Aged; D014408:Biomarkers, Tumor / Q000378:metabolism*; D003937:Diagnosis, Differential; D005260:Female; D018219:Histiocytoma, Benign Fibrous / Q000378:metabolism / Q000473:pathology; D006801:Humans; D007150:Immunohistochemistry; D007249:Inflammation / Q000378:metabolism / Q000473:pathology*; D007890:Leiomyosarcoma / Q000378:metabolism / Q000473:pathology*; D009124:Muscle Proteins / Q000378:metabolism; D009130:Muscle, Smooth / Q000378:metabolism; D012186:Retroperitoneal Neoplasms / Q000378:metabolism / Q000473:pathology*
chemical_list: D014408:Biomarkers, Tumor; D009124:Muscle Proteins