Answers are grounded in this paper and cite their sources.
A 34-year-old man found a mildly tender preauricular mass. Ultrasonography revealed an anechoic mass in the superficial lobe of the parotid gland. Magnetic resonance imaging showed thin ring-like contrast enhancement and homogenously high intensity on T2-weighted images. The mass was resected due to its rapid growth. The cystic lesion contained keratine-like material and a stratified squamous epithelium without granular layers, which was consistent with keratocystoma.
No takes yet. Share an insight, caveat, or question.
Hirata et al. (2014) studied this question.
Synapse has enriched 2 related papers. Consider them for comparative context: