case_images: PMC6399541_01
case_images: Pelvic MRI showing a large mass confined to the pelvis measuring 7.2 cm in the largest diameter with predominance of cystic component without evidence of fatty content, calcification, fluid-fluid level, or suspicious enhancing nodular soft tissue thickening.
case_images: CRIU2019-8970172.001.jpg
case_images: PMC6399541_01_CRIU2019-8970172.001.jpg
case_images: fig1
case_images: The excised mass had well-circumscribed smooth borders and rubbery consistency. It is covered by a thin and focally congested membrane. It weighs 157g and measures 7.5cm x 5.5cm x 5.5cm. Cut surface shows unilocular cystic mass filled with beige brown soft material and hair shafts.
case_images: CRIU2019-8970172.002.jpg
case_images: PMC6399541_01_CRIU2019-8970172.002.jpg
case_images: fig2
case_images: It is covered by a thin membrane and is focally congested (Figure 2).
case_images: (a) & (b) Cystic cavity lined by orthokeratinized stratified squamous epithelium, with straight epithelial-connective tissue interface. Copious fibrillary keratin fills the cyst. (a) The base of a hair follicle is identified. (b) A sebaceous gland with adjacent arrector pili muscle fiber. (c) High power view of arrector pili muscle fiber. (d) A hair shaft found in the cystic wall. (e) Inflammatory reaction to keratin with multinucleated giant cells and foamy macrophages is seen. Absence of cartilage and bone in all figures.
case_images: CRIU2019-8970172.003.jpg
case_images: PMC6399541_01_CRIU2019-8970172.003.jpg
case_images: fig3
case_images: Pathology was consistent with mature cystic teratoma (Figure 3).