An elevated level of prostaglandin PGE2 has been noted in the fluid aspirated from which of the following cysts
|A||Aneurysmal bone cyst|
|C||Unicameral bone cyst|
|D||Fibrous cortical cyst|
Unicameral bone cyst
a. An elevated levels of prostaglandin PGE2 in the fluid aspirated from radiologically active unicameral bone cysts has been reported by a number of observers.
b. The level of PGE2 is reduced after injection of steroid.
c. PGE2 is believed to stimulate the osteoblasts to resorb the bone.