A Case of Carcinoid-Type Tumorlets of The Lung.

Park, Jae Yong; Won, Jun Hee; Lee, Yang Ill; Han, Chun Duk; Jung, Tae Hoon; Chung, Jun Mo; Kim, Duk Sil; Jheon, Sang Hoon; Lee, Seung Cheol; Kwak, Jung Sik

doi:1995.42.3.370

Tuberc Respir Dis > Volume 42(3); 1995 > Article

Case Report

Tuberculosis and Respiratory Diseases 1995;42(3):370-374.
DOI: https://doi.org/10.4046/trd.1995.42.3.370 Published online June 1, 1995.

A Case of Carcinoid-Type Tumorlets of The Lung.

Jae Yong Park, Jun Hee Won, Yang Ill Lee, Chun Duk Han, Tae Hoon Jung, Jun Mo Chung, Duk Sil Kim, Sang Hoon Jheon, Seung Cheol Lee, Jung Sik Kwak

¹Department of Internal Medicine, School of Medicine Kyungpook National University, Taegu, Korea.
²Department of Thoracic and Cardiovascular Surgery, School of Medicine Kyungpook National University, Taegu, Korea.
³Department of Anatomical Pathology, School of Medicine Kyungpook National University, Taegu, Korea.

Abstract

Carcinoid-type tumorlets of the lung are nodular microscopic proliferation of round and spindle-shaped small cells which originated from bronchial or bronchiolar Kulchitsky-type neuroendocrine cells, which are usually encountered as an incidental finding during microscopic examination of the lungs at autopsy or surgically removed for bronchiectasis or other reasons. We report one case of carcinoid-type tumorlets in the lung which was surgically removed from a patient who had bronchiectasis, and the cells of tumorlets showed immunohistochemical reactivities for markers of epithelial and neuroendocrine differentiation.

Key Words: Carcinoid-type tumorlets