Periportal tuberculous adenitis: CT features.

Abstract

The computed tomographic (CT) findings in six patients with periportal tuberculous adenitis were reviewed retrospectively to analyze the main morphologic features of the disease. In all patients, hypodense lymph nodes were observed close to the porta hepatis, with peripheral enhancement seen after administration of contrast material. In one patient, this hypodense adenopathy was associated with homogeneous, normally enhancing lymph nodes. These different features on the CT scans could signify the evolving pathologic stages of the disease, with early noncaseating granulomas and subsequent caseation necrosis. Recognition of these hypodense lymph nodes, especially in patients at risk, should help optimize the correct diagnosis of periportal tuberculous adenitis.

Tuberculous Lymphadenitis as a Cause of Obstructive Jaundice: Report of a Case

“…6 The CT scans in our patient showed a heterogeneously enhanced lesion in the back of the pancreatic head, mimicking malignancy of the pancreas or common bile duct. However, the findings of ERCP, the normal appearance of the main pancreatic duct, and the smooth narrowing of the common bile duct were compatible with benign disease.…”

Abdominal tuberculous lymphadenopathy: MR imaging findings

“…The sonographic and CT findings of abdominal tuberculous lymphadenopathy have been described by many investigators [1][2][3][4][5][6][7][8][9][10][11][12], such as a hypoechoic nodular lesion in abdominal sonography and peripheral enhancement with low-density centers on contrast-enhanced CT. Moon et al [13] reported a clinicopathologic correlation with the MRI appearance of mediastinal tuberculous lymphadenitis.…”

Imaging of abdominal tuberculosis

“…The rates of lymphadenopathy in patients with abdominal tuberculosis are considerably different between 25 and 93 % of cases reported in the literature [10,24,27,28,31,32,37]. Tuberculous lymphadenopathy is associated with usually GI tuberculosis and less commonly peritoneal or solid organ involvement; however, it can also be the only sign of the disease, usually in the periportal region [28,42,43]. Although tuberculosis can attack every lymphatic region in the abdomen, the distribution of enlarged lymph nodes simply reflects the lymphatic drainage of the involved organs and this is site dependent in individual cases [28,37].…”