Clear Cell "Sugar" Tumor of the Lung: A Well-Enhanced Mass with an Early Washout Pattern on Dynamic Contrast-Enhanced Computed Tomography.
10.3346/jkms.2008.23.6.1121
- Author:
Woong Ji KIM
1
;
So Ri KIM
;
Yeong Hun CHOE
;
Ka Young LEE
;
Seoung Ju PARK
;
Heung Bum LEE
;
Myoung Ja CHUNG
;
Gong Yong JIN
;
Yong Chul LEE
Author Information
1. Department of Internal Medicine and Airway Remodeling Laboratory, Chonbuk National University Medical School, Jeonju, Korea. leeyc@chonbuk.ac.kr
- Publication Type:Case Report
- Keywords:
Clear Cell Tumor;
Dynamic Contrast-Enhanced CT;
Lung;
Sugar Tumor;
Washout Pattern
- MeSH:
Antigens, Neoplasm/metabolism;
Diagnosis, Differential;
Humans;
Lung/radiography/surgery;
Lung Neoplasms/diagnosis/pathology/*radiography;
Male;
Middle Aged;
Neoplasm Proteins/metabolism;
Perivascular Epithelioid Cell Neoplasms/diagnosis/pathology/*radiography;
Solitary Pulmonary Nodule/diagnosis/pathology/*radiography;
*Tomography, X-Ray Computed
- From:Journal of Korean Medical Science
2008;23(6):1121-1124
- CountryRepublic of Korea
- Language:English
-
Abstract:
Clear cell tumor of the lung is a rare and very unusual benign pulmonary tumor. As clear cell tumor of the lung contains abundant cytoplasmic glycogen, this tumor is called "sugar tumor". We report a case of sugar tumor in a 64-yr-old man presenting as a round pulmonary nodule. On dynamic computed tomography (CT) scans, the solitary pulmonary nodule showed early wash-in enhancement with an early washout pattern like a lung malignancy. The patient underwent wedge resection for the tumor. Pathologic examination, including immunohistochemical studies, revealed that the nodule was a benign clear cell tumor, so-called "sugar tumor". Because only a small number of cases have been reported previously, clinical aspects, radiological characteristics on dynamic contrast-enhanced CT, and differential diagnosis of the tumor are not well established. Herein we present a clear cell tumor of the lung and discuss the clinical, radiological, and pathological features of the tumor.
