대한흉부영상의학회 Weekly Chest Cases

Courtesy of Kwon Hye Young, Sung Shine Shim / Ewha Seoul Hospital, Ewha Womans University
Age/Sex 44 / F
Chief ComplaintIncidental radiologic abnormality

Diagnosis: Mucoepidermoid carcinoma
Radiologic Findings: Fig 1. Chest PA shows mass like consolidation in right middle lung zone
Fig 2-5. On CT images, There is about 2cm sized enhancing nodular lesion in RLL and this lesion make occlusion at RML lateral bronchus subsegmental branch
Fig 6. That nodule show mild hypermetabolism on PET CT
Brief Review: Pulmonary mucoepidermoid carcinoma (PMEC) is an uncommon neoplasm of the lung and the most common salivary gland malignancy. PMEC is usually located in the lobar or segmental bronchi, usually accompanied by distal bronchial dilatation with mucoid impaction. Although it is most commonly identified in the head and neck, it can occur in many sites of the body, including the breasts, lungs, skin, and thymus.
Clinically, PMEC occurs over a broad age range of 3
Please refer to: KSTR imaging conference 2017 Summer Case 9 ,
KSTR Imaging Conference 2004 Summer Case 3 ,
KSTR Imaging Conference 2003 Summer Case 7,
References: 1. Zhen H, Huanwen W, Ji L, Shanqing L, Shafei W, Yuanyuan L, Yufeng L, Jinling C, Xuan Z, Zhiyong L, Primary Pulmonary Mucoepidermoid Carcinoma: Histo-pathological and Moleculargenetic Studies of 26 Cases, PLoS One. 2015; 10(11): e0143169.
2. Xian Li1, Wei Yi2, Qingsi Zeng, CT features and differential diagnosis of primary pulmonary mucoepidermoid carcinoma and pulmonary adenoid cystic carcinoma, J Thorac Dis. 2018 Dec; 10(12): 6501
Keywords: Airway, Malignant neoplasm, Mucoepidermoid carcinoma,

대한흉부영상의학회 Korean Society of Thoracic Radiology