SLIDE 8 8
IMMATURE TERATOMAS
- Account for 20% of malignant germ cell
tumors
- Account for 15% of ovarian cancers in
first two decades
- Median age, 18 years
- 25% have ipsilateral and 10%
contralateral dermoid cyst
- Rarely have elevated hCG and AFP
levels
Gross Features a Major Clue in Distinction Between Immature Teratoma and Dermoid Cyst
- 1. Average size of immature teratoma 16 cm.
- 2. Average size of dermoid cyst 8 cm.
- 3. Most immature teratomas solid and cystic, more the former
and with worrisome appearance.
- 4. Dermoid cyst generally dominantly cystic and solid foci
lack hemorrhage and necrosis.
- 5. A grossly typical dermoid is likely to be that after
microscopic examination in vast likelihood.