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- Title
CT imaging of primary pancreatic lymphoma: experience from three referral centres for pancreatic diseases.
- Authors
Boninsegna, Enrico; Zamboni, Giulia A.; Facchinelli, Davide; Triantopoulou, Charikleia; Gourtsoyianni, Sofia; Chiara Ambrosetti, Maria; Veneri, Dino; Ambrosetti, Achille; Pozzi Mucelli, Roberto
- Abstract
Purpose To describe CT characteristics of primary pancreatic lymphoma (PPL), a rare disease with features in common with adenocarcinoma. Materials and methods Fourteen patients were enrolled. CT: unenhanced scan, contrast-enhanced pancreatic and venous phases. Image analysis: tumour location; peri-pancreatic vessel encasement; necrosis; enlarged lymph nodes; fat stranding; enlarged bile duct and pancreatic duct; neoplasm longest dimension, volume and density. Results Histopathological diagnoses: follicular non-Hodgkin lymphoma (5/14), diffuse large B-cell lymphoma (6/14) and high-grade B-cell lymphoma not otherwise specified (3/14). Six of 14 PPLs were located in the pancreatic head and 7/14 in the body-tail; 1/14 involved the whole gland. In 5/14 cases the superior mesenteric artery and vein were encased; splenic vein and artery encasement was depicted in 2 PPLs. Necrosis was present in 2/14. Enlarged retroperitoneal lymph nodes were found in 11 cases and fat stranding in all patients. The bile duct was dilated in six cases and the pancreatic duct in five. Mean neoplasm longest diameter and volume were 8.05 cm and 210.8 cm3. Mean tumour attenuation values were 39.1 HU at baseline, 60.6 HU in the pancreatic phase and 71.4 HU in the venous phase.
- Subjects
COMPUTED tomography; PANCREATIC cancer; DIAGNOSTIC imaging; ADENOCARCINOMA; NECROSIS
- Publication
Insights into Imaging, 2018, Vol 9, Issue 1, p17
- ISSN
1869-4101
- Publication type
Article
- DOI
10.1007/s13244-017-0585-y