Published on March 2, 2008
Chest PA A 58-year-old man with a lung nodule A lung nodule, incidentally founded during routine health check-up No subjective symptome Nodular density in left perihilar area
Chest CT A mass in anterior segment of left upper lobe
Gross image A gray tan solid mass with lobulated contour and tongue-like projection along the vessels
Scanning view A blue tumor with some organoid feature
Scanning view A blue tumor growing along the perivascular lymphatics
Low power view A blue tumor with lymphatic tumor emboli
Orgnaoid aggrangement Tumor cells grow in an organoid nesting arrangement
Typical carcinoid : A carcinoid tumor with fewer than 2 mitoses per 2mm 2 and lacking nectosis Atypical carcinoid : A carcinoid tumor with 2-10 mitoses per 2mm 2 and/or foci of necrosis. Frequently show some degree of nuclear pleomorphism Calcifications are characteristic (up to 30% of cases) Small ‘punctate’ area of necrosis justifies a diagnosis of ‘atypical carcinoid’ Brief review of carcinoid tumor
Typical carcinoid : A carcinoid tumor with fewer than 2 mitoses per 2mm 2 and lacking nectosis
Atypical carcinoid : A carcinoid tumor with 2-10 mitoses per 2mm 2 and/or foci of necrosis.
Frequently show some degree of nuclear pleomorphism
Calcifications are characteristic (up to 30% of cases)
Small ‘punctate’ area of necrosis justifies a diagnosis of ‘atypical carcinoid’
Punctated necrosis Atypical carcinoid; some organoid feature and punctated necrosis
Mitosis Atypical carcinoid; some organoid feature and mitosis
What are lung carcinoid tumors? Lung carcinoid tumors (also known as lung carcinoids) are a type of lung cancer, ... Atypical carcinoid tumor;
Typical and atypical pulmonary carcinoids : ... Eleven patients had atypical carcinoid tumors with thoracic lymph node involvement. At the last follow-up, ...
atypical carcinoid An intermediate form of neuroendocrine tumour between low-grade malignant (typical carcinoid) and high-grade small cell carcinoma.
1. Thorax. 2014 Jul;69(7):648-53. doi: 10.1136/thoraxjnl-2013-204102. Epub 2014 Mar 6. Atypical carcinoid tumours of the lung: prognostic factors and ...
Neuroendocrine Tumors of the Lung ... crine tumors: typical carcinoid, atypical carcinoid, small cell lung cancer, and large cell neuroendocrine carcinoma.
Home Chapter Home Jobs Conferences Fellowships Books. Advertisement. Lung tumor. Carcinoid and related tumors. Atypical carcinoid tumor. Reviewer: Deepali ...
Carcinoid commonly refers to neuroendocrine tumors that originate in the gastrointestinal (GI) tract, lungs, appendix and thymus, although they can also ...
Carcinoid tumors can happen in the lungs or digestive tract. Learn about risk factors, tests, treatment, and more.
Atypical Ccrcinoid is faster growing than typical carcinoid. Atypical carcinoid (AC) is an intermediate form of tumor between low-grade malignant typical ...
The treatment of lung carcinoid tumors depends largely on the type (typical versus atypical) and extent of the cancer. Other factors, such as a ...