Papilloma

The papilloma is a benign tumor originating from the uppermost skin or mucosal layers of an organism. Papillomas are found, for example, on the skin of the body surface in the urinary tract, in the excretory ducts of the breast and other glands or on the mucous membranes of the mouth, nose, sinuses or in the gastrointestinal tract ( villous adenoma). Papillomas have a cauliflower- like appearance and can be up to 1 cm in size. On histological examination one sees a vessel leading finger-shaped pinnate stroma with downright superficial squamous epithelium. The cause viral infections or mechanical irritation is suspected.

Papillomas of the skin

Skin papillomas occur in all age groups without gender preference. Cosmetically disturbing growths can be surgically removed.

Papillomas of the mucous membrane

Nose and sinuses

Schleimhautpapillome, also called Schneider papillomas are rare benign tumors mainly of the nose and paranasal sinuses ( inverted papilloma or transitionale ) and occur most commonly on one side, what makes it different from the sided inflammatory sinusitis. Symptoms ( unilateral ) headache, especially nasal congestion and sometimes nosebleeds. The inverted papilloma is usually localized to the lateral nasal wall, but it can also sit on the nasal septum or from the paranasal sinuses, the maxillary sinus and the ethmoid, arise. Although it is not a malignant disease that radical change must be surgically removed because it can lead to a growth into surrounding organs such as the eye socket otherwise.

The inverted papilloma spreads, macroscopically smooth surface, under the mucosal level endophytic and forces the surrounding tissue structures. Also typical is a mulberry- like surface. During the inspection, the tumor is yellowish to salmon-pink color with a gray-white cut surface. The inverted papilloma bleeds easily when touched. The proper name of the medical Schneider papilloma derived from an area of the nasal mucosa, the evolutionary equivalent of the Schneider membrane. The Schneider membrane developed at the end of the fourth week of embryonic development, is derived from the Riechplakoden and is therefore unlike the rest entodermal derived respiratory mucous membrane of ectodermal origin.