Diagnostic power of 64-channel multidetector CT with three dimensional images in evaluating and staging gastric lymphoma

ObjectivesTo assess the diagnostic power of 64 channel multidetector CT with three-dimensional images in evaluating and staging gastric lymphoma.Patients and methodsCT imaging of selected 30 cases with gastric lymphomas proved by histopathology was reviewed retrospectively. CT findings correlated with the pathologic types of gastric lymphoma.ResultsAll the 30 cases were non-Hodgkin’s lymphomas (NHL). There are two different lymphoma subtypes (diffuse large B cell lymphoma, 17 patients (56.66%) and MALT lymphoma, 13 patients (43.33%)). Primary lymphoma was detected in 6/30 cases (20%) while secondary lymphoma was detected in 24/30 cases (80%). Further staging of our patients was divided into high grade (9/30) patients and low grade (21/30) patients. Most gastric lesion was located in the antrum (29/30, 66.66%) and body of stomach (22/30, 73.33%). Gastric wall thickness ranged from 20 to 60 mm (mean 32.22 ± 14 mm). There are four different patterns of gastric involvement by lymphoma: focal (20%), diffuse thickening (33.3%), diffuse thickening and nodular pattern (33.3%), and ulcerative pattern (13.3%). 12/30 cases (40%) had regional abdominal lymphadenopathy, distant LNs enlargement was detected in 2 patients (6.6%) beneath renal hilum, splenomegaly was detected in 7 patients (7 (23.33%), and splenic focal lesion was detected in one patient (3.33%).ConclusionMDCT with 3D images provides valuable results regarding diagnosis and staging of gastric lymphomas.