Abstract
Teratomas are the germ cell tumors which comprises of tissues from all the three germ cell layers. Primary retroperitoneal teratoma is a relatively rare tumor in adults. The primary retroperitoneal teratoma constitutes 6–11% of the retroperitoneal tumors. Sixty percent of the retroperitoneal teratomas occur in children less than 15 years. It occurs more commonly in females than males. The order of frequency for teratoma is ovary, testis, mediastinum and the retroperitoneum at last. Early diagnosis and surgery are the mainstay of treatment. We report a rare case of large primary retroperitoneal teratoma. This is the largest primary retroperitoneal teratoma reported in the literature to our knowledge.
Highlights
Teratomas are the germ cell tumors which comprises of tissues from all the three germ cell layers
Microscopic examination of the tumor showed a cystic mass with presence of hair, adipose tissue, squamous epithelium, respiratory epithelium, cartilage and chronic inflammatory cell infiltrate (Fig. 3)
The tumor was diagnosed as a mature cystic teratoma
Summary
A 19-year-old male presented with progressively increasing mass and pain in the left side of the abdomen. The tumor was measured at 42 cm × 29 cm × 17 cm in size and weighted 4200 g (Fig. 2). The cystic portion of the tumor was filled with gray-white greasy sebum, teeth and hairs. Microscopic examination of the tumor showed a cystic mass with presence of hair, adipose tissue, squamous epithelium, respiratory epithelium, cartilage and chronic inflammatory cell infiltrate (Fig. 3). There were no immature components identified microscopically. There was no evidence of malignancy in these components. The tumor was diagnosed as a mature cystic teratoma
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