True about dermoid cyst

Ans. (d) Rupture is associated with Foreign body type inflammationRef: Short Cases Das Ch. 1* Dermoid cyst is lined by squamous epithelium and contains pultaceous material inside.* Teratomatous type of dermoid cyst contains all layers -- epithelium, endothelium and mesothelium -- hence contain -- hair, muscle, teeth etc* Most common type of dermoid is sequestration dermoid found at the line of fusion of epithelium -- common in external angular, postauricular etc.* It produces bony indentation* Rupture is associated with FB type inflammation.