An 111In-Pentetreotide Positive Sclerosing Pneumocytoma

Clin Nucl Med. 2017 Apr;42(4):282-284. doi: 10.1097/RLU.0000000000001544.

Abstract

A 43-year-old woman had an incidental lung mass identified on shoulder x-ray performed for pain. Contrast-enhanced CT showed a 38-mm mass in the medial segment of the right middle lobe, with features suggestive of carcinoid tumor. A In-pentetreotide scan showed intense uptake; furthermore, fine needle aspiration biopsy yielded neuroendocrine cells confirming the carcinoid hypothesis. However, definitive surgical histology showed a sclerosing pneumocytoma. This could potentially suggest that such rare tumors, with metastatic potential, could respond to somatostatin analogue treatment.

Publication types

  • Case Reports

MeSH terms

  • Carcinoid Tumor / diagnostic imaging*
  • Diagnosis, Differential
  • Female
  • Humans
  • Lung Neoplasms / diagnostic imaging*
  • Middle Aged
  • Positron-Emission Tomography
  • Radiography
  • Radiopharmaceuticals*
  • Somatostatin / analogs & derivatives*

Substances

  • Radiopharmaceuticals
  • Somatostatin
  • pentetreotide