title: CT findings of regression in intraabdominal desmoplastic small-cell tumor.
abstract: We report the computed tomographic (CT) findings in a patient with intraabdominal desmoplastic small-cell tumor before and after 10 weeks of chemotherapy. This tumor is a rare, frequently fatal neoplasm of the peritoneum, seen predominantly in young males. Initial CT demonstrated large intraperitoneal masses, hepatic metastases, retroperitoneal and right axillary lymphadenopathy, ascites, and pleural effusion. Follow-up CT showed marked decrease of the main tumor bulk and complete regression in the axillary nodes.
authors.affiliation: Department of Radiology, Walter Reed Army Medical Center, Washington, DC, USA.
authors.forename: H N
authors.initials: HN
authors.lastname: Dao
authors.forename: A H
authors.initials: AH
authors.lastname: Dachman
mesh_terms: D000008:Abdominal Neoplasms / Q000000981:diagnostic imaging* / Q000188:drug therapy; D000328:Adult; D018906:Antineoplastic Agents, Alkylating / Q000008:administration & dosage; D018288:Carcinoma, Small Cell / Q000000981:diagnostic imaging* / Q000628:therapy; D003520:Cyclophosphamide / Q000008:administration & dosage; D004305:Dose-Response Relationship, Drug; D005500:Follow-Up Studies; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D016066:Pleural Effusion, Malignant / Q000000981:diagnostic imaging / Q000188:drug therapy; D014057:Tomography, X-Ray Computed
chemical_list: D018906:Antineoplastic Agents, Alkylating; D003520:Cyclophosphamide