Publication:

Successful full-term vaginal delivery in a patient with large adnexal lymphangioma: a rare case report

Adnexal masses during pregnancy are increasingly detected because of routine obstetric ultrasonography. Most are benign and resolve spontaneously; however, persistent large masses require careful evaluation because of complications such as torsion, rupture, hemorrhage, and obstruction during labour. Lymphangioma is a rare benign tumour arising from lymphatic vessels, and its occurrence in the adnexa is extremely uncommon. We report a case of a 27-year-old multigravida with a large multiloculated left adnexal cystic mass measuring approximately 19×12×16.5 cm detected antenatally. The patient remained asymptomatic throughout pregnancy and was managed conservatively with close surveillance. She subsequently had spontaneous full-term vaginal delivery with favourable maternal and neonatal outcomes. This case highlights that careful monitoring and individualized management can allow successful vaginal delivery even in the presence of large benign adnexal masses.