The protein content of a keratocyst is found to be:

# The protein content of a keratocyst is found to be:

A. less than 4 gm/dL

B. 6 mg/dL

C. Equal to serum protein

D. More than serum protein

The correct answer is A. less than 4 gm/dL.

Aspirational biopsy of odontogenic keratocysts contains a greasy fluid which is pale in colour and contains keratotic squames. Protein content of cyst fluid below 4g% is diagnostic of odontogenic keratocysts. Smaller and unilocular lesions resembling other types of cysts may require a biopsy to confirm the diagnosis. On a CT scan, the radiodensity of a keratocystic odontogenic tumour is about 30 Hounsfield units, which is about the same as ameloblastomas. However, ameloblastomas show more bone expansion and seldom show high density areas.

Reference: Wikipedia

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