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Pulmonary Pathology Online

Fine-Needle Aspiration Cytology- Features of Carcinoid Tumours

 Dr Sampurna Roy MD    





Image:  FNAC- Carcinoid tumour - Groups of small regular cells with delicate cytoplasm, vesicular nuclei and prominent nucleoli. Rosette arrangement of cells present.

Samples may be profusely cellular in typical, atypical and metastatic carcinoid tumors.

Cell sheets and widespread cell dissociation both present.

Architectural features including palisades and rosettes are strong clues.

The cytoplasm is fragile and often shows faint eosinophilic granules with Papanicolaou staining.

Bare nuclei with granular chromatin are seen.

Spindle cell carcinoids show elliptical nuclei with granular chromatin and visible nucleoli.

Plexiform capillary fragments may be obtained, with tumour cells attached.

Scanty necrosis is seen in atypical and metastatic carcinoids.

Further reading:

Bronchial carcinoid tumors. Analysis of 41 cases.

Fine needle aspiration cytology of carcinoid tumors.

Fine needle aspiration cytology of pulmonary carcinoid tumors.

Pulmonary spindle cell carcinoid. Needle aspiration biopsy, histologic and immunohistochemical findings.

Carcinoids, atypical carcinoids, and small-cell carcinomas of the lung: differential diagnosis of fine-needle aspiration biopsy specimens.

Aspiration biopsy cytology of adenocarcinoid tumor of the bronchial tree.

Fine needle aspiration cytology of atypical carcinoid of the lung.

Pulmonary carcinoid with glandular features. Report of two cases with positive fine needle aspiration biopsy cytology.

Fine needle aspiration cytopathology of bronchial carcinoid tumors: an analytical study of the cells.

Cytomorphology of carcinoid tumors.



Dr Sampurna Roy  MD

Consultant  Histopathologist (Kolkata - India)



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