kolesteatom

Kolesteatom is a rare, benign, non-inflammatory tumor that arises from the sebaceous glands of the skin. It is typically found in the eyelid, but can also occur in other areas such as the scalp, face, and neck. The term "kolesteatom" is derived from the Greek words "koleste" meaning "grease" and "atoma" meaning "lump," reflecting the tumor's composition of keratin and sebum.

The exact cause of kolesteatom is unknown, but it is believed to be related to the accumulation of keratin and sebum within the sebaceous glands. The tumor is usually asymptomatic and is often discovered incidentally during a routine examination. It appears as a small, firm, yellowish or white nodule that can vary in size from a few millimeters to several centimeters.

Treatment of kolesteatom is usually not necessary unless the tumor causes cosmetic concerns or is growing rapidly. If treatment is required, it can be performed surgically, typically by excising the tumor along with a margin of normal skin. Post-operative care includes keeping the area clean and dry to prevent infection.

Kolesteatom is considered a benign tumor, and there is no evidence that it is associated with any malignant transformation. However, due to its rarity, further research is needed to fully understand its pathogenesis and optimal management.