Diagnosis of systemic or visceral candidosis.

Although systemic or visceral candidosis can be diagnosed during life, it is usually discovered at autopsy. Early diagnosis is important since treatment with specific antifungal drugs is effective. The diagnosis should rest on all available clinical and laboratory evidence. Mucocutaneous lesions and chorioretinitis are important clinical findings in the presence of predisposing illness and iatrogenic factors. Repeatedly positive blood cultures for Candida in the absence of an indwelling intravenous line and Candida colony counts of 10 000/ml or greater in urine freshly obtained by catheter in the absence of an indwelling Foley catheter are very significant. Similarly significant is recovery of Candida from closed spaces (pleural, peritoneal, joint or subarachnoid). The agar gel diffusion test for Candida antibodies has a sensitivity and specificity of 85% or greater and can confirm the diagnosis in otherwise doubtful cases. The various antibody tests for Candida are not suitable for random screening because of the low prevalence of visceral or systemic candidosis in the general population.

Dialysis of gallbladder bile. Correlation between rates of exit of bile salts and bilirubin from the dialysis sac.

Twenty-six gallbladder bile samples were dialyzed against an infinite dilution of Tris buffer at pH 7.4. Bilirubin moved out of the dialysis sac at a rate slower than that of bile salts. The rates of exit of these two molecules showed a significantly positive correlation with each other and a significantly negative correlation with bile salts concentration. Phospholipids and cholesterol did not move out of the dialysis sac. These data are consistent with the assumption that bile is a mixed micellar solution of bile salts, phospholipids, and cholesterol and suggest an association between bilirubin and the mixed micelle.

Candida esophagitis: a prospective study of 27 cases.

A prospective study of candida esophagitis was undertaken to determine the spectrum of this disease in a general hospital. During 1 year, in 370 consecutive endoscopies, 27 patients with Candida esophagitis were detected. The diagnosis was established by finding white plaques on endoscopy, yeast organisms on microscopic examination of a direct smear from the plaques, and a serum agglutinin titer of at least 1:160. Of these 27 patients, 14 had esophageal symptoms. Twelve patients were reendoscoped after nystatin or nystatin and flucytosine therapy. Nine patients showed absence of lesions, a negative smear, and disappearance of symptoms. Control patients had no plaques on endoscopy, no yeast organisms on microscopical examination of esophageal brushings, and a positive titer in 4 to 17% of cases. A minimal agglutinin titer of 1:160 was found in 4 to 12% of two additional groups on controls. Absence of titer precluded a diagnosis of Candida esophagitis.