title: Pulmonary tumourlets and microcarcinoids in bronchiectasis.
abstract: A 66 year old woman underwent a left lower lobectomy for bronchiectasis. Histology revealed the presence of multiple endocrine lesions, such as neuroendocrine cell hyperplasia, tumourlets and microcarcinoids, which were widespread in bronchi, bronchioles and alveolar tissue. This case confirms the occurrence of neuroendocrine proliferations, in the setting of bronchiectasis, ranging from neuroendocrine cell hyperplasia to carcinoids, and suggests tumourlets as an appropriate model for neuroendocrine lung tumour genesis.
authors.affiliation: Presidio di Pneumotisiologia, Bologna, Italy.
authors.forename: P A
authors.initials: PA
authors.lastname: Canessa
authors.forename: D
authors.initials: D
authors.lastname: Santini
authors.forename: M
authors.initials: M
authors.lastname: Zanelli
authors.forename: V
authors.initials: V
authors.lastname: Capecchi
mesh_terms: D000368:Aged; D001987:Bronchiectasis / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D002276:Carcinoid Tumor / Q000150:complications* / Q000473:pathology; D002455:Cell Division; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000150:complications* / Q000473:pathology; D018358:Neuroendocrine Tumors / Q000150:complications* / Q000473:pathology; D011230:Precancerous Conditions / Q000150:complications* / Q000473:pathology; D014057:Tomography, X-Ray Computed