| Teratoma | |
|---|---|
 | |
| A small (4 cm) dermoid cyst of an ovary, discovered during cesarean section | |
| Specialty | Gynecology, oncology |
| Symptoms | Minimal, painless lump[1][2] |
| Complications | Ovarian torsion, testicular torsion, hydrops fetalis[1][2][3] |
| Types | Mature, immature[4] |
| Causes | Unknown[2] |
| Diagnostic method | Tissue biopsy[2] |
| Differential diagnosis | Lipoma, dermoid, myelomeningocele[5] |
| Treatment | Surgery, chemotherapy[5][6] |
| Frequency | 1 in 30,000 newborns (coccyx)[7] |
A teratoma is a tumor made up of several types of tissue, such as hair, muscle, teeth, or bone.[4] Teratomata typically form in the tailbone (where it is known as a sacrococcygeal teratoma), ovary, or testicle.[4]
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