TY - JOUR
T1 - Thoracic neurilemomas
T2 - An analysis of computed tomography findings in 36 patients
AU - Ko, Sheung-fat
AU - Lee, Tze Yu
AU - Lin, Jui Wei
AU - Ng, Shu-Hang
AU - Chen, Wei Jen
AU - Hsieh, Ming Jang
AU - Wan, Yung Liang
AU - Tsai, Chung Chueng
PY - 1998/1
Y1 - 1998/1
N2 - On computed tomography (CT), neurilemomas have generically been described as well-defined, round masses with heterogeneous contrast enhancement. The CT scans of 38 surgically proven thoracic neurilemomas in 36 patients were reviewed to characterize further the CT features of this tumor, with an emphasis on different enhancement patterns. Unenhanced CT was available in 32 patients: 10 tumors appeared isodense, and 22 tumors appeared slightly hypodense compared with chest wall muscle. Except for an intraosseous neurilemoma of the T8 vertebral body, which mimicked bone metastasis, the tumors could be categorized into five different patterns on CT after contrast enhancement. Twenty tumors (54.1%) revealed diffuse, but amorphous and inhomogeneous enhancement. Seventeen (45.9%) tumors appeared as masses with multiple hypodense or cystic areas. Of these 17, the pattern was somewhat radial enhancement (n = 6, 16.2%), peripheral enhancement with a large central hypodense area (n = 5, 13.5%), homogeneous hypodensity (n = 5, 13.5%), and central enhancement with peripheral hypodensity (n = 1, 2.7%). Appreciation of various CT manifestations is important in the diagnosis of this tumor.
AB - On computed tomography (CT), neurilemomas have generically been described as well-defined, round masses with heterogeneous contrast enhancement. The CT scans of 38 surgically proven thoracic neurilemomas in 36 patients were reviewed to characterize further the CT features of this tumor, with an emphasis on different enhancement patterns. Unenhanced CT was available in 32 patients: 10 tumors appeared isodense, and 22 tumors appeared slightly hypodense compared with chest wall muscle. Except for an intraosseous neurilemoma of the T8 vertebral body, which mimicked bone metastasis, the tumors could be categorized into five different patterns on CT after contrast enhancement. Twenty tumors (54.1%) revealed diffuse, but amorphous and inhomogeneous enhancement. Seventeen (45.9%) tumors appeared as masses with multiple hypodense or cystic areas. Of these 17, the pattern was somewhat radial enhancement (n = 6, 16.2%), peripheral enhancement with a large central hypodense area (n = 5, 13.5%), homogeneous hypodensity (n = 5, 13.5%), and central enhancement with peripheral hypodensity (n = 1, 2.7%). Appreciation of various CT manifestations is important in the diagnosis of this tumor.
KW - Computed tomography
KW - Neoplasms, thorax
KW - Neurilemoma, thorax
UR - http://www.scopus.com/inward/record.url?scp=0031975122&partnerID=8YFLogxK
U2 - 10.1097/00005382-199801000-00007
DO - 10.1097/00005382-199801000-00007
M3 - 文章
C2 - 9440835
AN - SCOPUS:0031975122
SN - 0883-5993
VL - 13
SP - 21
EP - 26
JO - Journal of Thoracic Imaging
JF - Journal of Thoracic Imaging
IS - 1
ER -