In a large proportion of enuretics, the enuresis episodes are accompanied by high urine output at night. At this study we provoked a high urine output in normal non-enuretic children in order to investigate whether volume provocation per se could cause enuresis. In six of ten children it was possible to provoke nine enuresis-like episodes. The enuresis volumes were small with no relation to functional bladder capacity. It is concluded, that increased urine output at night may produce enuresis-like episodes even in normal children.

RESULTSThere was a strong positive correlation between EPA and DHA in leukocytes and in prostate tissue (EPA: r = 0.80, DHA: r = 0.53, both P < 0.001) in all the men, whereas there was no association between the content of ALA in leukocytes and in prostate tissue ( r = − 0.15). Men with BPH had similar levels of ALA in leukocytes and in prostate tissue, but men with prostate cancer had more ALA in prostate tissue than in leukocytes. The PSA level was significantly positively correlated with ALA level in prostate tissue ( r = 0.42, P < 0.01) but there was no significant correlation between PSA level and EPA and DHA levels. There were no significant correlations between PSA level and n-3 PUFA levels in leukocytes. CONCLUSION

Malignant transformation occurs in about 2% only of ovarian dermoid cysts. The clinical and histopathological findings in a rare case of primary ovarian malignant melanoma of amelanotic type are presented.

The course of delivery and fetal outcome in 149 women with forecoming normal pregnancy and a prepregnancy body mass index (BMI) less than 20.0 were compared to a similar group of women with BMI between 20.0 and 24.9 after matching for age and parity. None of the women was undernourished. Suspected intrauterine asphyxia was significantly more common in primipara with BMI below 18.0 than in their controls (6/12 vs. 1/12), and there was a trend towards fewer babies weighing at least 4,000 g in the women with low BMI. No other significant differences related to BMI were found. It is concluded, that constitutional low weight for height is not a predictor of complications during delivery, and no special observation of this group is recommended.

True hermaphroditism was found in a phenotypically normal boy admitted to the urology department with the diagnosis of right undescended testis. The tissue expected to be cryptorchid proved to constitute an ovary, uterus and salpinx. Normal left testicular tissue was found at biopsy. The patient's genotype was 46 XX.