Aspiration biopsy cytology of adenocarcinoid tumor of the bronchial tree

• Published in: Acta cytologica Vol. 31; no. 6; p. 726
• Main Authors: Nguyen, G K, Shnitka, T K
• Format: Journal Article
• Language: English
• Published: Switzerland 01-11-1987
• Subjects: Biopsy, Needle; Bronchial Neoplasms - pathology; Bronchial Neoplasms - ultrastructure; Carcinoid Tumor - pathology; Carcinoid Tumor - ultrastructure; Humans; Microscopy, Electron
• ISSN: 0001-5547

Aspirated material from two cases of histologically and ultrastructurally confirmed adenocarcinoid tumor of the lung was evaluated. In one case, columnar and cuboidal cells with ill-defined cytoplasm and round or oval nuclei were seen in large sheets and syncytiumlike clusters with focal glandular arrangement. In the other case, spindle-shaped and columnar cells with ovoid nuclei and ill-defined cytoplasm were seen singly and in loose clusters. Fragments of tumor epithelium with nuclei arranged in pseudo-stratified pattern were noted. Staining of tumor cells by the Grimelius technique demonstrated numerous intracytoplasmic brown-black granules. The cytologic differential diagnosis between adenocarcinoid tumor and other primary and metastatic adenocarcinomas of the lung is briefly discussed.