[Primary malignant non-Hodgkin's lymphoma of the breast: breast preserving therapy in 3 patients].

Primary malignant non-Hodgkin lymphoma is rare. The mammographic appearance is unspecific. The final diagnosis can usually be made after examination of paraffin-embedded tissue only.

Bone marrow lymphocyte subsets in myelodysplastic syndromes.

Aim: To examine lymphocyte subsets in patients with myelodysplastic syndromes (MDS); and to correlate immunohistological variables with prognosis.

Methods: Bone marrow trephine biopsy specimens from 65 patients with MDS were immunophenotyped using a panel of antibodies. A minimum of 1000 cells from representative areas of marrow sections were counted at light microscopy.

[ECG of the athlete's heart].

The athlete's heart is characterized by eccentric hypertrophy of all cardiac cavities and there is a close connection to increased tone of the vagal system. As a consequence, not only arrhythmias are observed in the ECG of healthy athletes, but also changes in the QRS complex and in the ST-T-segment. Left ventricular hypertrophy is diagnosed in ECG by a positive Sokolow-Lyon index.