Dynamic CT in pancreatic lymphoma.
We retrospectively reviewed the dynamic CT examinations of eight patients with pancreatic lymphoma. Four tumors were rounded masses with well-defined contours, four were more infiltrating lesions. The median cross-sectional diameter of the tumors was 6 cm (range 2.5-12 cm). At dynamic CT, the tumors were hypodense (n = 8) and somewhat heterogeneous (n = 6). Additional features were enlarged lymph nodes, 1-3 cm in diameter (n = 5), dilatation of the biliary tract and pancreatic duct (n = 5), abnormalities in the fat around the celiac trunk and/or the superior mesenteric artery (n = 4), and venous stenosis or occlusion (n = 7). The CT findings of pancreatic lymphoma are more various than has been previously reported. Findings such as small tumor size, well-defined contours, tumor heterogeneity, pancreatic duct dilatation, and venous invasion may be seen. Pancreatic lymphoma cannot be reliably distinguished from pancreatic carcinoma by CT findings alone.
Van Beers
B
B
Department of Radiology, Cliniques Universitaires de Mont-Godinne, Yvoir, Belgium.
Lalonde
L
L
Soyer
P
P
Grandin
C
C
Trigaux
J P
JP
De Ronde
T
T
Dive
C
C
Pringot
J
J
D000273:Adipose Tissue / Q000000981:diagnostic imaging; D000328:Adult; D000368:Aged; D003251:Constriction, Pathologic / Q000000981:diagnostic imaging; D004108:Dilatation, Pathologic / Q000000981:diagnostic imaging; D005205:Fascia / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D010183:Pancreatic Ducts / Q000000981:diagnostic imaging; D010190:Pancreatic Neoplasms / Q000000981:diagnostic imaging*; D011856:Radiographic Image Enhancement; D013162:Splenic Vein / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed / Q000379:methods*