LearningRadiology - Dermoid Cyst

Dermoid Cyst
Contributed by Weiling Chang, MD

Findings: Axial CT scan demonstrates an ovoid mass in the pelvis in close association with the right ovary. This mass contains soft tissue, fat, and calcific densities. Round solid tissue within the cyst may represent retained sebaceous material.

Dermoid cysts or mature cystic teratomas are benign ovarian neoplasms that contain endodermal, mesodermal, and ectodermal components. They are most commonly found in women of reproductive age. They are bilateral in 8-25% of cases. Findings of fat and calcific densities in an ovarian mass are highly specific for a dermoid.
Although they are often asymptomatic, women can present with pelvic pressure.
Complications include malignant degeneration, torsion, rupture, or hydronephrosis.

Reference: Dahnert, Wolfgang, Radiology Review Manual