• Carcinoids exhibit
Kulchitsky cell differentation
• Salivary gland type neoplasms presumably arise from bronchial glands
• Extremely uncommon.
• More frequent in young patients <40 years
• Unrelated to cigarette smoking
• Cough with hemoptysis
• Systemic symptoms of distal pneumonia including fever, malaise, sweats
• Low grade neoplasms may metastasize to adjacent nodes
• For more information on prognosis and treatment, consult the NCI web site.
|General Gross Description|
• Polypoid tan mass protruding into the lumen of a major bronchus
• Distal obstructive pneumonia may be profound with dilated mucous filled
airways and consolidated firm parenchyma
|General Micro Description|
• >90% of these neoplasms are carcinoid tumors
• Remainder include low grade salivary gland malignancies such as adenoid
cystic carcinoma and mucoepidermoid carcinoma
• Microscopic findings are identical to same neoplasms at other body
• Cotran RS, Kumar V, Robbins SL: Robbins Pathologic Basis of Disease. 5th edition. Philadelphia, W.B. Saunders, 1994, pp. 726-727.