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Lung tumor

Carcinoid and related tumors


Reviewer: Deepali Jain, M.D. (see Reviewers page)
Revised: 22 January 2013, last major update September 2012
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.


● Nodular proliferation of small spindle cells near bronchioles
● May be associated with bronchiectasis or other causes of scarring
● Almost always benign
● By definition, 5 mm or less

Positive stains

● Same as carcinoid

Electron microscopy description

● Same as carcinoid

End of Lung tumor > Carcinoid and related tumors > Tumorlet

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