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Benign multicystic peritoneal mesothelioma: literature review and update

Chand, Momal Tara ; Edens, Jacob ; Lin, Tayson ; Anderson, Ian ; Berri, Richard

Autopsy & case reports, 2020, Vol.10 (3), p.e2020159 [Periódico revisado por pares]

Brazil: São Paulo, SP: Universidade de São Paulo, Hospital Universitário

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  • Título:
    Benign multicystic peritoneal mesothelioma: literature review and update
  • Autor: Chand, Momal Tara ; Edens, Jacob ; Lin, Tayson ; Anderson, Ian ; Berri, Richard
  • Assuntos: ANATOMY & MORPHOLOGY ; Clinical Case Report ; PATHOLOGY
  • É parte de: Autopsy & case reports, 2020, Vol.10 (3), p.e2020159
  • Notas: Conflict of interest: None
    Authors’ contributions: All authors have made a substantial contribution to the information or material submitted: Chand MT and Anderson I were the primary pathologist, and Berri R was the primary surgeon involved in the patient care. Chand MT also conceptualized the theme of the manuscript. Edens J and Chand MT wrote the manuscript, Lin T helped with the radiology, and Berri R provided the intraoperative pictures. Critical revision of the manuscript for important intellectual content were done by Chand MT, Edens J, and Anderson I.
  • Descrição: Benign multicystic peritoneal mesothelioma (BMPM) is a rare peritoneal tumor diagnosed predominantly in pre-menopausal women. Associated risk factors include endometriosis and pelvic inflammatory disease in women, and prior abdominal surgery in both genders. To date, the pathogenesis of this disease remains controversial with possible etiologies, including a neoplastic versus a reactive process. Given the risk factors, some authors believe that this disease is secondary to a reactive process. However, because some studies describe cases where there is no prior surgical history or inflammatory milieu present, and because of this entity's predilection for recurrence, some authors believe the origin to be neoplastic. Some genetic and familial associations have also been reported. Malignant transformation is extremely rare, with only two cases reported in the literature, despite the recurrence potential. Like the etiology, the name of this entity is also controversial. Some authors prefer the term "peritoneal inclusion cyst (PCM)" instead of "benign cystic mesothelioma" and argue that the term mesothelioma should only be used when there is evidence of atypia. Most cases of BMPM are discovered incidentally. Others reflect sequela of tumor mass effect. It appears intra-operatively as large, multi-focal, cystic lesions in the peritoneal and pelvic cavity. Diagnosis is achieved through surgical sampling with histopathological examination. Immunobiologically, BMPM exhibits multiple small cystic spaces with flattened lining containing calretinin positive cells without atypical features, mitotic figures, or tissue invasion. Treatment includes cytoreductive surgery. Here we present a case of BMPM in a 60-year-old male - a rare disease in an uncommon patient population.
  • Editor: Brazil: São Paulo, SP: Universidade de São Paulo, Hospital Universitário
  • Idioma: Inglês;Português
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