keratin is the stuff in a sebaceous cyst.
what is the stuff in a sebaceous cyst?
keratin
sebaceous cyst





















































a sebaceous cyst is a term commonly used to refer to either:





















































bullet::::- epidermoid cysts (also termed "epidermal cysts", "infundibular cyst"), or





















































bullet::::- pilar cysts (also termed "trichelemmal cysts", "isthmus-catagen cysts").





















































both of the above types of cyst contain keratin, not sebum, and neither originates from sebaceous glands. epidermoid cysts originate in the epidermis and pilar cysts originate from hair follicles. therefore, technically speaking they are not sebaceous cysts. "true" sebaceous cysts, cysts which originate from sebaceous glands and which contain sebum, are relatively rare and are known as steatocystoma simplex or, if multiple, as steatocystoma multiplex.
sebaceous cyst
with surgery, a cyst can usually be excised in its entirety. poor surgical technique, or previous infection leading to scarring and tethering of the cyst to the surrounding tissue, may lead to rupture during excision and removal. a completely removed cyst will not recur, though if the patient has a predisposition to cyst formation, further cysts may develop in the same general area.





















































section::::causes.





















































high levels of testosterone and the use of androgenic anabolic steroids will cause such cysts.





















































a case has been reported of a sebaceous cyst being caused by the human botfly.
sebaceous cyst