title: Giant gastric lipossarcoma: case report and review of the literature.
abstract: Liposarcoma is one of the most common soft tissue sarcomas in adults, occurring in 15 to 20% of all patients with sarcoma. Primary liposarcoma of the stomach is rare. We report a case of patient with giant gastric liposarcoma who underwent surgery after a gastrointestinal bleeding. Preoperative hystopathological diagnosis was not established, even after three biopsy attempts. We discuss differential diagnosis, genetic causes, diagnosis strategies and treatment. RESUMO O lipossarcoma é um tipo comum de sarcomas em adultos, com incidência entre 15 e 20% entre os sarcomas. No entanto, o acometimento do estômago é raro. Relatamos um caso de um lipossarcoma primário gástrico gigante com apresentação clínica de hemorragia digestiva. Foi submetido a tratamento cirúrgico sem diagnóstico definitivo, apesar de três biópsias realizadas. Revisamos diagnósticos diferenciais, influência genética e estratégias diagnósticas e terapêuticas.
authors.affiliation: Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.
authors.forename: Jacques
authors.initials: J
authors.lastname: Matone
authors.affiliation: Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.
authors.forename: Samuel
authors.initials: S
authors.lastname: Okazaki
authors.affiliation: Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.
authors.forename: Gabriel Naman
authors.initials: GN
authors.lastname: Maccapani
authors.affiliation: Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.
authors.forename: Thiago Trolez
authors.initials: TT
authors.lastname: Amancio
authors.affiliation: Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.
authors.forename: Renée Zon
authors.initials: RZ
authors.lastname: Filippi
authors.affiliation: Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.
authors.forename: Antonio Luiz de Vasconcellos
authors.initials: AL
authors.lastname: Macedo
mesh_terms: D000368:Aged; D001706:Biopsy; D003937:Diagnosis, Differential; D005770:Gastrointestinal Neoplasms; D046152:Gastrointestinal Stromal Tumors; D006801:Humans; D008080:Liposarcoma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D008297:Male; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery