The spontaneous disappearance of a segment of bone in a short period without the existence of a tumoral disease that justifies it is an exceptional event. We report the case of an older adult in whom the upper epiphysis of the right humerus and part of the acromion disappeared in a period of 3 weeks in the absence of a malignant tumor. Bone biopsy revealed osteoclasts, lymphatic vessels, and blood vessels. This disorder was first reported in 1838 and in 1955 it was established as a specific disease by Gorham and Stout. Since then, it has been named in their honor.