Spontaneous discharging umbilical sinus secondary to infected cystic teratoma ovary: an atypical presentation.

Mature cystic teratomas are the most common ovarian neoplasm in patients younger than 20 years. Its complications include torsion, rupture, infection and malignant degeneration. Infection of teratoma is an uncommon event. We are reporting the first ever case of infected mature cystic teratoma presented as a chronic discharging sinus via umbilicus. 30 years old young primipara presented with complaint of seropurulent discharge from umbilicus for 6 months. Ultrasonography showed right sided complex adnexal mass. Umbilical exploration revealed sinus tract travelling deep into the pelvis attached to right ovarian mass. Salpingo- oopherectomy was done on right side and sinus tract excised. Cut-section of specimen showed heterogeneous mass of soft tissue with intact capsule containing hairs, cheesy white purulent material, fat and cartilage. Biopsy was suggestive of mature ovarian cystic teratoma.