[1] Lung carcinoids typically present with a cough or hemoptysis.

[citation needed] The definitive diagnosis is rendered by a microscopic examination, after excision.

Typical carcinoids have cells with stippled chromatin and a moderate quantity of cytoplasm.

By definition, they are greater than 4 mm in largest dimension; smaller lesions are referred to as pulmonary carcinoid tumourlets.

[citation needed] Typical carcinoids are usually treated with surgical excision.