Hidradenoma (synonym: syringoma, syringostatin, seringalistas), a benign tumor of the sweat glands. There are hidradenoma century and hidradenoma common localized in the neck, chest, back, legs. Multiple lesions, round, small (up to 0.5 cm in diameter), thick consistency, slightly above the level of the skin, which is not changed in color or slightly yellowish. Are mostly girls during puberty. Subjective sensations there. Malignant degeneration does not happen. There is also the so-called papillary hidradenoma - single rounded education up to 1 cm in diameter; usually observed in women aged 40 to 60 years in the vulva, perineum, inner thighs. Treatment: removal of certain entities by surgery, electrocoagulation.