[Glomus tumors with and without osseous changes].

Glomus tumors first described by Masson in 1924 may appear solitarily or in groups. They occur rather rarely. In the literature, there were reports on 358 cases of the solitary form (up to 1958) and on 62 cases of the multiple type (up to 1976). Very seldom, these tumours cause changes of the bones. Since Masson's first description of glomus tumors in 1924, there were only six reports on cases affecting the bones. We report on four patients, who consulted the Dermatologic Department of Krefeld because of glomus tumors. One of them showed multiple glomus tumors of the toes which had led to extensive destruction in the bones of the toes.