“…The word “teratoma” is derived from the Greek word “teraton,” meaning monster, and it was coined by Virchow in 1863 ( Comerci et al ., 1994 ). Teratomas are complex neoplasms arising from more than one embryonic germ layer, composed of a variety of unorganized, differentiated, or undifferentiated tissues originating from ectoderm (hair, teeth, and nervous tissue), mesoderm (fibrous or adipose tissue, bone, muscle, and cartilage), and endoderm (respiratory tissue and salivary gland) ( Sirivisoot et al ., 2022 ). Most teratomas arise in the gonads, though occasionally, they may develop in extragonadal sites, such as the anterior mediastinum, retroperitoneal, and gastrointestinal tract.…”