[Rectocolic tuberculosis. Radiological aspects apropos of 14 cases]. / La tuberculose recto-colique. Aspects radiologiques à propos de 14 observations.

During 11 years, 14 cases of tuberculosis of the colon are radiographied. The clinical findings are not specific and the association with evolutive pulmonary tuberculosis is infrequent (28%). The radiological features are described: ulcerations (4 cases), ulcerations and hypertrophic features (3 cases) and hypertrophic features (7 cases). The involving sites are caecum and ileocecum in 6 cases, ascending colon in 3 cases, transverse colon in 2 cases, descending colon in 2 cases and recto-sigmoid in 2 cases. The differential diagnosis are segmental Crohn colitis and colonic carcinoma. Endoscopic examination with biopsy is a help to the diagnosis, but in 5 cases, it will be deficient. The diagnosis of colonic tuberculosis is setting only by surgical resections in 6 cases (43%) and 4 patients have been treated by medical treatment with success. No relapse appears in operated patients.

[Cystic lymphangioma of the mediastinum. Radiologic data apropos of 7 cases]. / Les lymphangiomes kystiques du médiastin. Données radiologiques à propos de sept observations.

Cystic mediastinal lymphangiomas are rare benign uncommon slow-growing tumors. Seven cases of cystic mediastinal lymphangioma in adults are presented. In both cases a mediastinal opacity is evident on plain chest radiographs. Roentgen findings are not specific. The mass is noted to be non-pulsatile, and well circumscribed smooth-surfaced. There are no evidence of invasion to the neighboring structures and no calcification are seen within the lesions. In two patients, sonography examination confirmed the cystic nature of the mass. Four patients underwent computed tomography (CT) scan. Ct can offer considerable additional information: CT will show well circumscribed and uniform low density lesions without invasive characteristics. Attenuation values in CT scan cannot be considered conclusive for diagnosis in all cases, on the non contrast scan, attenuation varied between -49 to +27 UH, there was no contrast enhancement.