Cyst, sebaceous
Cyst, sebaceous: A sebaceous cyst is a rounded swollen area of the skin formed by an abnormal sac of retained excretion (sebum) from the sebaceous follicles.
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- Cyst, synovial, of the popliteal space
Cyst, synovial, of the popliteal space: A swelling in the space behind the knee (the popliteal space). The swelling is composed of a membrane-lined sac filled with synovial fluid that has escaped from the joint. Commonly called Baker’s cyst.
- Cyst, tarsal
Cyst, tarsal: Also called a chalazion or a Meibomian cyst, an inflammation of the oil gland of the eyelid.
- Cyst, thyroglossal
Cyst, thyroglossal: A fluid-filled sac that is present at birth and located in the midline of the neck. A thyroglossal cyst is a congenital malformation (a birth defect). It results from incomplete closure of a segment of the thyroglossal duct, a tube-like structure that normally closes as the embryo develops. Also called a thyroglossal duct […]
- Cystadenoma
Cystadenoma: A cystadenoma is a type of benign tumor that develops from ovarian tissue. They may be filled with a mucous-type fluid material. Cystadenomas can become very large and may measure 12 inches or more in diameter.
- Cystatin C
Cystatin C: A serum protein that is filtered out of the blood by the kidneys and that serves as a measure of kidney function. Cystatin C is produced steadily by all types of nucleated cells in the body. Its low molecular mass allows it to be freely filtered by the glomerular membrane in the kidney. […]