[Neonatal bilateral ovarian cystadenoma: Conservative or surgical treatment?].

Introduction: Bilateral complex ovarian cysts in newborns are rare and their reporting becomes imperative to in crease knowledge about the best therapeutic management.

Objective: To describe the clinical case of a newborn with a diagnosis of bilateral complex ovarian cysts and to discuss the conditions for conservative or surgical management according to the ultrasound characteristics of the cyst.

Clinical Case: At 35 weeks of gestational age, prenatal ultrasound identified the presence of cystic masses in both adnexa, so it was decided to interrupt the pregnancy by cesarean section at 37 weeks.

[Four years experience in the follow up of nursing children with urolithiasis].

Objective: to describe clinical data, metabolic profile, treatment and evolution of a nursing children cohort with urolithiasis.

Methods: using a descriptive, prospective and longitudinal design, were registered all patients with urolithiasis, of Pediatric Division at the Hospital General "Agustín O'Horán," in Yucatan, Mexico. We included all patients who were 36 months old and younger.