title: Spontaneous rupture of renal angiomyolipoma during pregnancy.
abstract: Renal angiomyolipoma is a benign tumor, composed of adipocytes, smooth muscle cells and blood vessels. The association with pregnancy is rare and related with an increased risk of complications, including rupture with massive retroperitoneal hemorrhage. The follow-up is controversial because of the lack of known cases, but the priorities are: timely diagnosis in urgent cases and a conservative treatment when possible. The mode of delivery is not consensual and should be individualized to each case. We report a case of a pregnant woman with 18 weeks of gestation admitted in the emergency room with an acute right low back pain with no other symptoms. The diagnosis of rupture of renal angiomyolipoma was established by ultrasound and, due to hemodynamically stability, conservative treatment with imaging and clinical monitoring was chosen. At 35 weeks of gestation, it was performed elective cesarean section without complications for both mother and fetus.
authors.affiliation: Department of Obstetrics and Gynecology, Hospital Dr. José de Almeida, Cascais, Portugal.
authors.forename: Mariana Mouraz Lopes
authors.initials: MM
authors.lastname: dos Santos
authors.affiliation: Department of Obstetrics and Gynecology, Hospital Dr. José de Almeida, Cascais, Portugal.
authors.forename: Sara Marques Soares
authors.initials: SM
authors.lastname: Proença
authors.affiliation: Department of Obstetrics and Gynecology, Hospital Dr. José de Almeida, Cascais, Portugal.
authors.forename: Maria Inês Nunes Pereira de Almeida
authors.initials: MI
authors.lastname: Reis
authors.affiliation: Department of Obstetrics and Gynecology, Hospital Dr. José de Almeida, Cascais, Portugal.
authors.forename: Rui Miguel Almeida Lopes
authors.initials: RM
authors.lastname: Viana
authors.affiliation: Department of Obstetrics and Gynecology, Hospital Dr. José de Almeida, Cascais, Portugal.
authors.forename: Luísa Maria Bernardo
authors.initials: LM
authors.lastname: Martins
authors.affiliation: Department of Obstetrics and Gynecology, Hospital Dr. José de Almeida, Cascais, Portugal.
authors.forename: João Manuel dos Reis
authors.initials: JM
authors.lastname: Colaço
authors.affiliation: Department of Obstetrics and Gynecology, Hospital Dr. José de Almeida, Cascais, Portugal.
authors.forename: Filomena Maria Pinheiro
authors.initials: FM
authors.lastname: Nunes
mesh_terms: D000328:Adult; D018207:Angiomyolipoma / Q000150:complications*; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000150:complications*; D011247:Pregnancy; D011252:Pregnancy Complications, Neoplastic; D012422:Rupture, Spontaneous