A CASE REPORT - RETROPERITONEAL DERMOID

Dermoid cyst comprises tissue derived from all the three germ cell layer of the embryo and can include many tissue types. Most are benign, but any of the tissue present can undergo malignant transformation. The presence of immature tissue increases the likelihood of malignant transformation and requires more aggressive therapy. It usually is found in midline structures. Retroperitoneal teratoma may present as a flank or abdominal mass. Thoracic teratoma usually present as an anterior mediastinal mass. Ovarian teratoma presents as an abdominal mass, often with symptoms of torsion, bleeding, or rupture. It needs to be evaluated with Ultrasonogram, CT abdomen, MRI. Complete excision is the treatment of choice.