Tracheobronchopathia osteochondroplastica.

Tracheobronchopathia osteochondroplastica (TO) is a rare disorder with unknown aetiology. We report one case of TO in a patient with non-Hodgkin pulmonary lymphoma and benign epidermal and trichylemmal cysts on the periorbital region and scalp. To the authors' knowledge, the coincidence of these processes has never been described before.