Two cases of asymptomatic granular cell tumor of the bronchus detected incidentally by bronchoscopy.

Kang, Eun Hee; Lee, Sung Hong; Na, Young Sook; Choi, Tae Young; Namgung, June; Jeoung, Byung Oh; Lee, Hyuk Pyo; Kim, Joo In; Yum, Ho kee; Choi, Soo Jeon; Cho, Hye Jae; Lee, Hye Kyung

doi:1999.46.1.122

Tuberc Respir Dis > Volume 46(1); 1999 > Article

Case Report

Tuberculosis and Respiratory Diseases 1999;46(1):122-128.
DOI: https://doi.org/10.4046/trd.1999.46.1.122 Published online January 1, 1999.

Two cases of asymptomatic granular cell tumor of the bronchus detected incidentally by bronchoscopy.

Eun Hee Kang, Sung Hong Lee, Young Sook Na, Tae Young Choi, June Namgung, Byung Oh Jeoung, Hyuk Pyo Lee, Joo In Kim, Ho kee Yum, Soo Jeon Choi, Hye Jae Cho, Hye Kyung Lee

¹Department of Internal Medicine, College of Medicine, Inje University, Seoul, Korea.
²Department of Pathology, College of Medicine, Inje University, Seoul, Korea.

Abstract

Granular cell tumor(formerly named to be granular cell myoblastoma) was first described by Abrikossoff in 1926 and is a rare tumor thought to be of Schwann cell origin. It can occur at any soft tissue of the body, but most cases are found at the tongue, skin, breast and GI tract. Only 6% of them occur in respiratory system. We report two cases of asymptomatic granular cell tumor of the bronchus that were detected incidentally by bronchoscopy. One patient had aspiration pneumonia, the other had immotile cilia syndrome. The former patient was simply observed and bronchoscopic extirpation of the tumor was done in the latter patient.

Key Words: Granular cell tumor, Granular cell myoblastoma, Bronchus, Bronchoscopy