Primary mediastinal large B-cell lymphoma mimicking liposarcoma.
A 78-year-old man consulted for acute exacerbation of chronic obstructive pulmonary disease (COPD) and an incidental finding of an anterior mediastinal tumor on chest radiograph was noted on admission. Chest computed tomography (CT) revealed a fat-containing mediastinal mass with solid component. Mediastinal liposarcoma was the initial diagnosis based on image characteristics but histopathologic examination of the excised tumor revealed lymphoma infiltration of the mediastinal adipose tissue. To our knowledge, this is the first case report of lymphomatous growth in mediastinal lipomatosis.
Huang
C T
CT
Department of Internal Medicine, Division of Pulmonary Medicine, National Taiwan University Hospital, No. 7, Chung-Shan South Rd, Taipei 100, Taiwan.
Huang
W C
WC
Shih
J Y
JY
Yang
P C
PC
D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D007150:Immunohistochemistry; D008068:Lipomatosis / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D008080:Liposarcoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D016403:Lymphoma, Large B-Cell, Diffuse / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000601:surgery; D029424:Pulmonary Disease, Chronic Obstructive / Q000150:complications; D014057:Tomography, X-Ray Computed