Pulmonary mucinous cystic tumor. Case report with review of the literature

Am J Surg Pathol. 1993 Jul;17(7):722-8.


Mucinous cystic tumors of the lung are exceedingly rare. We describe the case of a 59-year-old white man with a left upper lobe mass documented on chest radiographs 11 years before thoracotomy. Grossly, the lobectomy specimen contained a 4.5 x 4.5 x 4.0 cm cystic gelatinous mass with complete occlusion of the anterior segmental bronchus by mucinous material. Although microscopically this pulmonary mucinous cystic tumor contained a focus of marked glandular atypia consistent with adenocarcinoma, the patient has remained free of recurrence or metastasis during 5 years of close postoperative follow-up. Pulmonary mucinous cystic tumors appear to have a remarkably favorable prognosis and should be distinguished from other common lung neoplasms.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Cysts / pathology*
  • Humans
  • Immunohistochemistry
  • Lung Neoplasms / diagnostic imaging
  • Lung Neoplasms / metabolism*
  • Lung Neoplasms / pathology*
  • Male
  • Microscopy, Electron
  • Middle Aged
  • Mucins / metabolism*
  • Radiography, Thoracic


  • Mucins