Plasmablastic lymphoma associated to Crohn's disease and hepatitis C virus chronic infection.

Plasmablastic lymphoma is a very rare and recently-described subtype of diffuse large B-cell lymphoma. It has a poor prognosis despite intensive chemotherapy treatment. A 57-year old woman with perianal Crohn's disease receiving azathioprine and infliximab developed this type of lymphoma after a short period of time on the treatment.

Glandular odontogenic cyst: two high-risk cases treated with conservative approaches.

Background: The glandular odontogenic cyst is a rare jawbone cyst that is considered to be an independent entity, although its histopathological characteristics may lead to an incorrect diagnosis as a low-grade mucoepidermoid carcinoma. The treatment of glandular odontogenic cysts is controversial.

Case Report: We present two high-risk cases treated with conservative approaches, one by enucleation and curettage and the other by marsupialisation.

[Granular cell tumor of the esophagus: description of an infrequent benign tumor].

Granular cell tumors (GCT) are infrequent tumors first described by Abrikossoff in 1926. Gastrointestinal involvement occurs in about 6% of GCT, the esophagus being the most frequent location. These tumors are usually benign and asymptomatic and are usually found incidentally when an upper gastrointestinal endoscopy is carried out for another reason, showing an isolated polyp or sessile submucosal nodule, covered by intact yellowish mucosa and with firm consistency.