Pseudomonas pickettii bacteremia.

A case of bacteremia caused by Pseudomonas pickettii is reported. This represents the first case of infection due to this species.

Myasthenia gravis: relation between jitter in single-fiber EMG and antibody to acetylcholine receptor.

In 39 patients with myasthenia gravis, we measured jitter in the extensor digitorum communis muscle, using single-fiber electrode (SFEMG) and the serum titer of antiacetylcholine receptor antibody. Clinical severity was correlated more closely with jitter, especially the percentage of abnormal jitter pairs with blocking than with antibody titer. In patients who responded fairly well clinically after certain treatments, both the SFEMG abnormalities and antibody titer tended to improve in parallel with clinical improvement.

Umbilical core-out operation for a completely patent vitelline duct.

An umbilical core-out operation for a completely patent vitelline duct in a premature baby with successful preoperative manual reduction of the prolapsed ileal loops is described. In certain cases with this rare anomaly this procedure can be applied. The procedure is easy, timesaving, bloodless and necessitates no laparotomy incision.

Primary localized amyloidosis of bladder.

A case of primary localized amyloid tumor of the bladder is described, which was confused with neoplasm by cystoscopic, urographic, and other studies. Surgical specimens obtained by transurethral resection were diagnostic.