Pulmonary carcinoid tumors

Carcinoid tumors of the lung are a subgroup of neuroendocrine tumors of the lung, of lower grade than small cell carcinoma of the lung and large cell neuroendocrine carcinoma of the lung.

For a general discussion, please refer to the article on carcinoid tumors.

Pathology

Classification

Carcinoid tumors can be divided into two groups dependent on location:

Carcinoid tumors also can be divided into the two groups dependent on histology (requires resected specimen rather than biopsy ) as follows:

  • typical carcinoid tumors of the lung
    • some reports describe this type as being more common
    • low grade/well-differentiated  
  • atypical carcinoid tumors of the lung
    • less well-differentiated
    • more aggressive

Radiographic features

Please refer to location-dependent subtypes above.

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