SINCE 1924, when Masson1 described a tumor of the myoneuroarterial glomus, clinicians and pathologists alike have been cognizant of this entity. Textbooks of pathology and surgery have made the existence of such a lesion rather common knowledge. More often than not the diagnosis of glomic tumor is made prior to microscopic study because of the characteristic severe pain, often of paroxysmal nature, and the location of the tumors in one of the extremities, commonly subungual. On the other hand, the existence of the no less common painful leiomyoma either is not appreciated or is entirely overlooked.
Stout2 noted that as early as the eighteenth century continental writers were aware of painful tumors of the skin, generally designated tuberculum dolorosum, and that in 1873 Axel Key reported the first case of leiomyomatous tuberculum dolorosum, which involved the subcutaneous tissue of the poet Stranberg's finger. Since that time numerous reports