Chloroma of the forearm: a case report of leukemia recurrence presenting with compression neuropathy and tenosynovitis.

Acute Myelogenous Leukemia (AML) typically involves intramedullary proliferation of myeloid precursor cells. Extramedullary manifestations of AML are exceedingly rare, but do occur. Granu-locytic sarcoma, or chloroma, is one example of extramedullary leukemia cells forming a tumorous mass.

Metacarpophalangeal joint synovial osteochondromatosis: a case report.

We describe a case of primary articular synovial chondromatosis in a metacarpophalangeal (MCP) joint of a 48-year-old male. The patient initially presented with MCP joint swelling and pain with normal plain radiographs. Following a fourteen month course of conservative management, surgical debridement of the joint revealed multiple loose bodies consistent with primary articular synovial chondromatosis.

Immunohistochemical expression of osteopontin in epithelioid mesotheliomas and reactive mesothelial proliferations.

The morphologic distinction of epithelioid mesothelioma from a reactive mesothelial proliferation can be difficult. Recent studies have demonstrated that serum osteopontin levels are increased in patients with mesotheliomas. We sought to determine if osteopontin expression is diagnostically helpful in distinguishing epithelioid mesothelioma from reactive mesothelial proliferations.