Impact of Serum CA19-9 Level in Clinico- Pathological and Radiologic Feature of Mature Cystic Teratoma: A Case series

Ovarian mature cystic teratomas (OMCTS) are one of the most common benign ovarian tumors. Most MCTs can be diagnosed by ultrasonography (us). Due to heterogeneous composition and a variety of appearance, in some non-diagnostic imaging reports it is suggested that we evaluate some tumor markers (CA125 and CA19-9) to complement imaging modalities. According to previous investigation, a single elevated CA 19-9 is in association with specific radio-pathologic features, such as size, torsion, bronchial glands, fat and teeth components. Here we are presenting three different cases of OMCT with different characteristics.

Case 1: asymptomatic, non-diagnostic US, single- elevated CA19-9, smaller than in 10 cm with bronchial glands and fat component. Case 2: symptomatic, non-diagnostic U.S. normal CA19-9, larger than 10 cm with torsion and necrosis. Case 3: symptomatic, diagnostic US, single- elevated CA19-9, smaller than 10 cm, full of hair and sebaceous material. Computer tomography (CT), in all of our cases was diagnostic based on OMCT. Apologia of pathologic pathway of elevated CA19-9 in both cases 1 and 3 were in agreement with the result of previous investigations. In case 2, despite its large size and torsion, CA 19-9 level was low.

Single- elevated CA 19-9 level in OMCTs could impact benign characteristics of this kind of tumor.