Atheroma - the sebocystoma of a skin formed as a result of an occlusion of a lead-out duct of a gland.

Signs, current. There can be on any sites of a body where hair grow, but a primary localization - a skin of a head, the face, a back, a neck, area of genitals. Looks like the limited, mobile, spherical is soft-elastic tumorous formation with the precise contours, located in a depth of a skin. The skin above formation pleated does not gather. Sometimes on a skin it is close to the center of formation the expanded lead-out duct of a gland is defined. The differential diagnosis spend with epithelial cysts, tumours of soft tissues (a fibroma, a lipoma). The pyesis of an atheroma arises at penetration of a pathogenic microflora through a lead-out duct. The pain, a local hyperemia, an edema, morbidity, rise in temperature, fluctuation is marked. At a pyesis the atheroma can is spontaneous break outside - pus with салообраз-th contents is allocated.