Despite this fluctuation, a drained mucocele would not
fluctuate and a chronic mucocele with a developed fibrosis
would have less fluctuation.
A simple technique known as fine needle aspiration biopsy
(FNAB) is very helpful, especially when differential
diagnosis of angiomatous lesions is involved. Abundant
mucosa without epithelial components is found within
mucoceles as well as many inflammatory cells, especially
histiocytes (13).