[Difficulty in diagnosing acute appendicitis in the presence of acute portal vein thrombosis: the role of CT scan. Report of 2 cases]. / Difficultés du diagnostic d'appendicite aiguë en cas de thrombose portale aiguë: apport du scanner.

Acute appendicitis can cause of portal vein thrombosis. Diagnosis of appendicitis can be difficult because its symptoms may be masked by those of acute portal vein thrombosis. We report 2 cases of appendicitis associated with acute portal vein thrombosis whose diagnosis was delayed by several months. The delayed diagnosis of acute appendicitis in the presence of acute portal vein thrombosis can be avoided by using spiral-computed tomography and careful investigation of signs of appendicitis.

[Hepatitis C virus infection and primary hepatic large B-cell lymphoma: a non-fortuitous association. Case report and review of literature]. / Hépatite chronique virale C et lymphome malin non hodgkinien à grandes cellules de type B primitif du foie: une association non fortuite. A propos d'un cas et revue de la littérature.

We report a case of hepatitis C virus infection in association with primary hepatic large B-cell non-Hodgkin's lymphoma. Primary hepatic non-Hodgkin's lymphoma is a rare disease. Association of hepatitis C virus infection with primary hepatic B-cell non-hodgkin's lymphoma is probably not fortuitous. Indeed, in case of primary hepatic non-hodgkin's lymphoma' patients are often hepatitis C virus positive. Moreover, several studies have reported a high prevalence of chronic hepatitis C virus infection among patients with B-cell non-Hodgkin's lymphoma whatever the localization of the lymphoma. A recent study found a high rate of remission of a splenic form of lymphoma after treatment of hepatitis C virus infection. Our case report confirms the hypothesis of a key role of hepatitis C virus in the pathogenesis of various forms of B-cell lymphoproliferative disorders and in particular in primary hepatic lymphoma.