The word "sebaceous cyst" is spelled with the /sɪˈbeɪʃəs sɪst/ phonetic transcription. The first syllable is pronounced with a short "i" sound and the second with a long "a" sound. "Sebaceous" refers to the glands that produce oil and is spelled with an "ea" combination that is pronounced with a long "e" sound. "Cyst" is spelled with a "y" instead of "i" because it comes from the Greek word "kystis." This glandular cyst is a common type of benign tumor, filled with cheese-like material that forms beneath the skin.
A sebaceous cyst is a common harmless growth that develops within the skin. It is typically filled with a thick, yellowish substance called sebum, which is secreted by the sebaceous glands. These cysts typically form when the gland's duct becomes blocked, leading to a buildup of sebum underneath the skin.
Sebaceous cysts typically appear as small, round or dome-shaped lumps beneath the surface of the skin. They are usually smooth to the touch and can vary in size from a few millimeters to several centimeters in diameter. These cysts can occur in various areas of the body, such as the face, neck, trunk, or genital region. While they are generally painless, they can sometimes become inflamed or infected, causing redness, tenderness, and soreness.
The exact cause of sebaceous cysts is not always clear, but certain factors can contribute to their formation. These may include blockage or damage to the hair follicles, excessive production of sebum, or hormonal imbalances. They are more common in individuals with oily skin and can often develop after an injury or surgery.
Although sebaceous cysts are typically harmless, they may be surgically removed if they become bothersome, infected, or cosmetically undesirable. A medical professional can usually diagnose a sebaceous cyst through a physical examination, and in some cases, imaging tests or a biopsy may be performed to rule out other conditions. Overall, sebaceous cysts are benign growths that can be easily treated or managed with proper medical care.
A distended s. follicle.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "sebaceous" is derived from the Latin word "sebum", which means "tallow" or "grease". "Sebum" refers to the oily substance produced by sebaceous glands in the skin. The term "cyst" comes from the Greek word "kystis", meaning "bladder" or "pouch". Therefore, "sebaceous cyst" refers to a cystic or pouch-like structure filled with sebum.