Abstract
INTRODUCTION: Germ cell tumors (GCTs) are heterogeneous group of neoplasms that arise from primordial germ cells and can occur in various locations, most commonly in the ovaries and testes but can also be found in extra-gonadal sites like retroperitoneum due to developmental errors. These tumors are relatively rare but clinically significant due to their potential for malignancy and association with developmental anomalies. CASE PRESENTATION: This case series presents four rare and unusual cases of germ cell tumors encountered in both paediatric and adult patients, each with distinctive clinical, radiological, and histopathological features. These cases are unique in their clinical presentation and histomorphological findings, reflecting the diverse spectrum of GCTs across different age groups. CONCLUSION: These cases underscore the complexity of diagnosis, the role of radiological and histopathological examinations, and the varied management strategies for rare conditions like gonadoblastoma, dysgerminoma, struma ovarii, and fetus-in-fetu.