Authors: Spasimir T Shopov.
Collision tumors represent a coexistence of two adjacent but histologically distinct tumors without histologic admixture in an organ.
Serous tumors of the ovary are the most common of epithelial tumors, And mature teratoma is the most common of Germ cell tumors. However, a collision between them is a rare pathology. Here the author presents a report to a 36-year-old pregnant woman whose ultrasound examines establishes rounded right ovary formation with hypo-and hyper-dense sections in the small pelvis. Paraclinical: CA125 at a normal.