[Estimate of the variability in the evaluation of semen analysis].

Background: Masculine Infertility diagnosis continues depending in a great number of cases of the analysis of the semen. However, appropriate interpretation of the seminal analysis implies to consider two factors, the dependability of the laboratory and the medical knowledge about the meaning of the seminal alterations.

Objective: Compare the results of the semen analysis among clinical laboratories.

[Mesenteric cyst. A case report].

Mesenteric cysts are rare, it had been reported a frequency of 1 in 250,000 hospital admissions. We present a case of a 17-year-old female, attended at gynecology service with 8 weeks amenorrhea and diffuse pain in all abdominal regions. Without preceding pathological history of importance, menarche at 14 year, menstrual cycles of 30-45 x 5, nuligesta.

[Catecholamines level variation during pregnancy in women with diabetes and preeclampsia].

Background: In obstetrical service it is frequent to find women with acute renal failure during second trimester of pregnancy. Main causes are related to hypertensive alterations, hemorrhage, sepsis, intrinsic renal disease and some rare disorders that produce high maternal morbidity and mortality.

Objective: [corrected] To evaluate changes of adrenal function in pregnancy as well as its associated repercussions in diabetic and preeclamsic patients.