RESUMEN
Los quistes perineurales o de Tarlov son por lo general hallazgos incidentales durante un estudio de imagen que no requieren tratamiento a menos que produzcan síntomas. Tienen una incidencia baja en la población general y esto puede deberse a un error en su diagnóstico, ya que simulan otras lesiones quísticas de la pelvis.Presentamos el caso de una paciente de 38 años en estudio por infertilidad primaria que en control ecográfico, se aprecia lesión quística pélvica de 4 cm, de situación medial, y aparentemente independiente de anejos y útero. Tras dicho hallazgo, se vitrifican los embriones y se deriva al servicio de medicina interna y de neurocirugía para completar estudio.La TC abdomino-pélvica informa de la presencia formaciones quísticas que dependen de los agujeros de conjunción sacros y que se confirman en la RMN. Dichas formaciones son compatibles con el diagnóstico de quiste meníngeo extradural.Al no presentar clínica, se decide tratamiento conservador. La paciente regresa a la unidad de reproducción para completar tratamiento de infertilidad (AU)
Perineural or Tarlov cysts are usually detected as incidental findings during an imaging study and do not require treatment unless symptomatic. The incidence of perineural cysts in the general population is low. Because these cysts simulate other cystic lesions of the pelvis, their low incidence may be due to diagnostic error.We present the case of a 38-year-old woman who was under investigation for primary infertility. An ultrasound scan revealed a 4-cm pelvic cystic lesion, situated medially and apparently independently from the annexes and uterus. Subsequently, the embryos were vitrified and were sent to the internal medicine and neurosurgery services for examination.The abdominopelvic CT scan showed the presence of cystic formations in the intervertebral foramina of sacrum, which were confirmed by magnetic resonance imaging. These formations were compatible with a diagnosis of extradural meningeal cyst.Because the patient was asymptomatic, we decided to provide conservative treatment. The patient was referred back to the fertility unit to complete the fertility treatment (AU)
