[Diagnosis of premenstrual disorders].

Background And Objective: There is no valid method in the German literature for assessing premenstrual disorders. This study was undertaken to translate into German, validate and test the reliability of the "Premenstrual Syndrome Tension Observer/Self-Rating Scale" and the "Visual Analogue Scale for Premenstrual Disorders".

Patients And Methods: 55 patients diagnosed with premenstrual dysphoric disorder took part in the study.

Umbilical cord cysts in early pregnancy.

Objective: To assess the prevalence, morphologic characteristics, and natural history of umbilical cord cysts detected by ultrasound in the first trimester of pregnancy.

Methods: This was an ultrasound screening study for the presence of umbilical cord cysts in 859 pregnant women with singleton live fetuses at 7-13 weeks' gestation. In all cases of cord cysts the scan was repeated fortnightly until the cyst resolved or a fetal abnormality was detected.

Massive ascites due to abdominal pregnancy.

We describe a case of an abdominal pregnancy which presented in the first trimester with rapid accumulation of blood stained ascites. The ascites resolved completely following surgical removal of a gestational sac from the peritoneal cavity. The pathophysiology of ascites in this case may be similar to that in cases of ascites in other non-malignant gynaecological conditions.

Diagnosis and treatment of early cervical pregnancy: a review and a report of two cases treated conservatively.

We report two cases of cervical pregnancy which were diagnosed by ultrasound at 5 and 8 weeks' gestation. In both cases a gestational sac was visualized below the internal os and color Doppler examination demonstrated peritrophoblastic blood flow characteristic of early implantation. Both patients were successfully treated with systemic methotrexate.

Calendar of gametogenic development in the prepuberal male mouse.

The timing of the first meiotic cycle in the young male mouse was established by serial sacrifices and subsequent paraffin sectioning of testis and epididymis. Meiosis commences in mice 8 to 10 days old. The highest frequency of any one phase of meiosis was found at days 17 to 19, when 47 percent of the tubules were found to contain late pachytene.