Acquired haemophilia a secondary to multiple myeloma: management of a patient with a mechanical mitral valve.

A 77-year-old man with a mechanical mitral valve on warfarin presented with an acute drop in haemoglobin and large spontaneous haematoma. He was found to have a new coagulopathy with initial labs notable for a prolonged activated partial thromboplastin time (APTT). Further workup revealed factor VIII levels less than 1%, abnormal mixing studies and elevated Bethesda titres, which was consistent with an acquired factor VIII inhibitor.

Burkitt Lymphoma and Other High-Grade B-Cell Lymphomas with or without MYC, BCL2, and/or BCL6 Rearrangements.

Burkitt lymphoma (BL) is highly aggressive and requires very intensive chemotherapy approaches for successful treatment. Although "standard" approaches are tolerated in young patients, this is not the case in older adults, and new approaches that lower toxicity but maintain high curability are needed and are currently in development. Recently, high-grade B-cell lymphomas with MYC and BCL2 and/or BCL6 rearrangements have been categorized separately from diffuse large B-cell lymphoma or BL.