title: Neoplasm-like abdominal nonhematogenous disseminated tuberculous lymphadenopathy: CT evaluation of 12 cases and literature review.
abstract: OBJECTIVE
  To assess the diagnostic value of computed tomography (CT) imaging in screening for abdominal nonhematogenous disseminated tuberculous lymphadenopathy (TL).
  
  
  METHODS
  The CT scans of 12 patients with abdominal nonhematogenous disseminated TL suggestive of neoplasm were retrospectively analyzed in this review. The final diagnoses were confirmed by lymph node pathology for seven patients and by laparoscopic surgery for five patients. All of the patients were treated at our institution between April 1995 and August 2009.
  
  
  RESULTS
  The sites of involvement were the periportal (n = 6), peripancreatic (n = 3), periaortic (n = 3), and mesenteric (n = 2) regions. On the plain CT scan, the lymphadenopathy showed a heterogeneous isodensity or hypodensity in 11 patients and a low density in one patient. Peripheral enhancement was observed on the dynamic contrast-enhanced CT scans for all patients. In two cases, scans were more revealing during the portal venous and delayed phases.
  
  
  CONCLUSIONS
  Abdominal lymphadenopathy with predominant peripheral rim-like enhancement on the dynamic contrast-enhanced CT scan may suggest a diagnosis of TL.
authors: Department of Medical Imaging, First Affiliated Hospital, Xi'an Jiaotong University School of Medicine, Xi'an 710061, Shaanxi Province, China.
authors: Ming
authors: M
authors: Zhang
authors: Min
authors: M
authors: Li
authors: Gui-Ping
authors: GP
authors: Xu
authors: Hong-Juan
authors: HJ
authors: Liu
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008206:Lymphatic Diseases / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014388:Tuberculosis, Lymph Node / Q000150:complications / Q000175:diagnosis* / Q000473:pathology*; D055815:Young Adult