What's the most likely diagnosis?

• 49 year-old female with dull right lower quadrant pain

1. Uterine fibroid
2. Mucocoele of the appendix
3. Appendicolith
4. Iliac artery aneurysm
5. Dermoid cyst

Answer:

 

5. Dermoid Cyst

 

 

More (Click Discussion Tab)

Dermoid Cyst of the Ovary

General Considerations

• Dermoids, a term now used almost always interchangeably with teratomas, are tumors derived from more than one germ layer, frequently all three
• As such, they can include hair, teeth, fat, skin, muscle, endocrine tissue
• Ectodermal tissue predominates
• Mature cystic teratomas are commonly referred to as dermoid cysts
• They are the most common ovarian neoplasm
• Mature cystic teratoma of the ovary is invariably benign
• In rare cases (1-3%), they may undergo malignant change
• The prognosis is generally poor for such malignant tumors
• They can occur at any age
• More common during reproductive years (16-55)
• Peak incidence from 20-40
• During adolescence, 50% of adnexal neoplasms are mature cystic teratomas
  
  

More ...