Study Affected
bone/tissue 		Number of
cases 		Percentage
Hussain et al. [8] Skin 5 2%
Poghosyan et al. [11] Upper jaw 97 39%
Babkova et al. [14]
Hakobyan et al. [24]
Ispiryan et al. [29]
Poghosyan and Hakobyan [30]
Poghosyan et al. [11] Lower jaw 105 42%
Babkova et al. [14]
Ramishvili, et al. [17]
Hakobyan et al. [24]
Hakobyan and Poghosyan [25]
Hakobyan and Poghosyan
[9] 		Both jaws 41 16%
Poghosyan et al. [11]
Babkova et al. [14]
Hakobyan and Poghosyan [22]
Hakobyan et al. [24]
Hakobyan and Poghosyan [23] Midface 3 1%
Haskin et al. [26]
Ghazawi et al. [27]
Thekkemuriyi et al. [28]
Sorrentino et al. [31]