[Possible correlations of Berger's disease and Schonlein-Henoch purpura]. / Possibili correlazioni tra malattia di Berger e porpora di Schönlein-Henoch.

A case of IgA nephropathy is described. The patient had only an attack of Henoch-Schonlein purpura without renal involvement when she was 7 years old. After 6 years of normal urinalysis she developed repeated bouts of gross hematuria and proteinuria. In renal biopsy typical features of Berger's disease were found. This particular case permits to debate whether the two diseases suffered by our patient were related or quite different.

Acute infectious lymphocytosis: phenotype of the proliferating cell.

A case of acute infectious lymphocytosis in an otherwise healthy 2-year-old child is reported. Marker analysis of the expanded blood lymphocytes showed that they were predominantly T cells and that there was a considerable increase in the helper/inducer phenotype (OKT4+) population. However, the lymphocyte response to polyclonal T-cell activators was low. This is the first report on T-cell subset distribution in acute infectious lymphocytosis.