The efficacy of magnetic resonance imaging and ultrasound in detecting disruptions of the forearm interosseous membrane: a cadaver study.

The purpose of this study was to examine the efficacy of magnetic resonance imaging (MRI) and ultrasound (US) in determining complete disruptions of the central portion of the forearm interosseous membrane. The midportion of the forearm interosseous ligament was longitudinally incised in 19 fresh-frozen cadaver arms. The specimens were imaged with MRI and US.

An intra-articular bioabsorbable interference screw mimicking an acute meniscal tear 8 months after an anterior cruciate ligament reconstruction.

Seven months after a quadrupled semitendinosus anterior cruciate ligament reconstruction, a 44-year-old active-duty soldier reported symptoms consistent with a medial meniscus tear. Preoperative magnetic resonance imaging showed an intra-articular bioabsorbable interference screw within his intercondylar notch. The screw was retrieved arthroscopically.

Apoptotic megakaryocyte dysplasia in the myelodysplastic syndromes.

The terminal phase of the megakaryocyte life span is characterized by the onset of apoptosis to form compact, denuded megakaryocyte nuclei (DMK) surrounded by a thin rim of cytoplasm. Increased numbers of DMK have been reported in patients with acquired immune deficiency syndrome (AIDS) and chronic myeloproliferative disorders. In this study the bone marrow biopsies of 20 patients with various FAB subtypes of myelodysplastic syndrome (MDS) were examined for the presence of DMK cells and semiquantified for marrow reticulin level.

Immunocytochemical identification of nuclear estrogen-receptors in human acute myeloid leukemia.

The peripheral and bone marrow blast cells of twenty patients newly-diagnosed as acute myeloid leukemia (AML), subtypes M1-M5, were analysed for the presence of estrogen-receptors by ER-ICA immunocytochemistry and dextran-coated charcoal cytosolic (DCC) assay. Two patients demonstrated myeloblasts with nuclear staining patterns consistent with the presence of estrogen-receptors. The positive immuno-staining results were confirmed by DCC in one patient with AML, subtype M4.