Myeloid blastic transformation of myeloproliferative neoplasms--a review of 112 cases.

Blastic transformation of myeloproliferative neoplasms (MPN) is still poorly understood. We describe a cohort of 23 Roswell Park Cancer Institute (RPCI) patients and 89 additional cases from the English literature for whom biologic features were described. We initially compared our 23 patients to the 89 cases from the literature.

Right atrial paraganglioma: a rare primary cardiac neoplasm as a cause of chest pain.

A 37-year-old man presented with chest pain, fever, and tachycardia. Electrocardiography revealed no ST-T wave changes, and cardiac markers were normal. Computed tomography of the chest showed a 7-cm mass in the right atrium.