A Rare Case of Ovarian Dysgerminoma with Torsion in Pregnancy

Early identification of the clinical and imaging characteristics of ovarian dysgerminoma is crucial for prompt care of this rare malignant germ cell tumour, which primarily affects young women and adolescents. We describe the case of a young woman who experienced sporadic lower stomach discomfort and secondary amenorrhoea for three months. A large, multilobulated, solidcystic mass originating from the right adnexal region with prominent internal septations and moderate post-contrast enhancement was seen on Contrast-Enhanced Magnetic Resonance Imaging (CE-MRI) of the pelvis following clinical evaluation and initial laboratory investigations. However, there was no evidence of ascites or metastatic spread. With dysgerminoma as the primary differential, these imaging features clearly supported a malignant germ cell tumour. Histopathology verified the diagnosis of ovarian dysgerminoma after the patient had surgical exploration and lump excision. Although ovarian tumours in pregnancy are uncommon, dysgerminoma in pregnancy is extremely rare, emphasising the importance of maintaining a high level of suspicion in reproductiveage women presenting with adnexal masses.