ArticleEuropean radiology2025
The CT findings of extranodal natural killer/T-cell lymphoma, nasal type involving the gastrointestinal tract.
Article in European radiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectivesTo analyze the CT imaging features of extranodal natural killer/T (NK/T)-cell lymphoma, nasal type (ENKTCL-NT) involving the gastrointestinal tract (GI), and to compare them with those of Crohn's disease (CD) and diffuse large B-cell lymphoma (DLBCL). MATERIALS AND
methodsData were retrospectively collected from 17 patients diagnosed with GI ENKTCL-NT, 68 patients with CD, and 47 patients with DLBCL. The CT findings of ENKTCL-NT were analyzed and compared with those of CD and DLBCL. Data were analyzed using SPSS (version 25.0) and MedCalc (version 18.2.1). p < 0.05 was considered statistically significant.
resultsThe 17 patients with ENKTCL-NT included 11 males (64.7%) and 6 females (35.3%) (mean age, 46.41 ± 4.12 years). The CT features of ENKTCL-NT included: circumferential symmetric thickening (100%), moderate thickening (70.6%), skip lesions (52.9%), contiguous lesion (47.1%), mucosal or layered enhancement (70.6%), moderate mural enhancement (64.7%) with non-enhanced regions (47.1%), absence of lymphadenopathy (76.5%), bowel perforation or fistula (17.6%), and peri-enteric blurred fat space (70.6%). The presence of circumferential symmetric thickening, moderate mural enhancement, and non-enhanced regions were more indicative of ENKTCL-NT than CD (17/17 vs. 17/68, 11/17 vs. 22/68, 8/17 vs. 0/68, p < 0.05). The presence of skip lesions, mucosal or layered enhancement, and absence of peri-enteric lymphadenopathy were more indicative of ENKTCL-NT than DLBCL (9/17 vs. 2/47, 12/17 vs. 1/37, 13/17 vs. 19/47, p < 0.05).
conclusionCT imaging features can provide useful information for the early diagnosis of ENKTCL-NT and effectively differentiate it from CD and DLBCL. KEY POINTS: Question Extranodal natural killer/T-cell lymphoma, nasal type (ENKTCL-NT) involving the gastrointestinal tract (GI) is highly malignant but easily misdiagnosed by clinicians and endoscopic examination. Findings CT could provide useful information in the diagnosis of ENKTCL-NT involving GI and in differentiating it from Crohn's disease and diffuse large B-cell lymphoma. Clinical relevance This study will help improve the ability of radiologists to diagnose ENKTCL-NT involving GI, and a more predictive diagnosis will also alert clinicians to perform multiple deep endoscopic biopsies, which will contribute to the early diagnosis and treatment of ENKTCL-NT.
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