Large posterior vaginal cyst in pregnancy

Area of Science:

• Obstetrics and Gynecology
• Reproductive Medicine
• Surgical Pathology

Background:

• Müllerian cysts are rare benign vaginal cysts that can cause symptoms during pregnancy.
• Vaginal masses during labor require prompt diagnosis and management to ensure maternal and fetal well-being.

Observation:

• A 20-year-old primigravida presented with a large, tense 8x8 cm cyst protruding from the posterior vaginal wall during labor.
• The cyst, present since puberty, had enlarged during pregnancy, causing significant concern during uterine contractions.

Findings:

• The vaginal cyst was successfully aspirated, allowing for an uneventful vaginal delivery.
• Histopathological examination confirmed the cyst to be of Müllerian origin.
• Surgical excision of the cyst and vaginal wall repair were performed postpartum.

Implications:

• This case highlights the importance of recognizing and managing large vaginal cysts during pregnancy and labor.
• Timely intervention, including aspiration and surgical excision, can lead to favorable outcomes for both mother and child.
• Müllerian cysts, though rare, should be considered in the differential diagnosis of vaginal masses presenting during pregnancy.