Reports of Boeck's sarcoid with visceral involvement are uncommon. When on postmortem examination of our patient it was noted that lesions similar to those of the skin co-existed in the epicardium, in the bronchial mucosa and in the mucosa of the ileum, the problem of the etiology of the malady and its significance to internal medicine was brought anew to our attention. BOECK'S SARCOID In 1899, Boeck1for the first time described a cutaneous malady which since has been known as Boeck's sarcoid. In 1900,2he described three additional cases of it. The disease is chronic and it is characterized by the presence on the skin of either small or large nodules or infiltrated plaques, varying in number from one to many hundreds. These lesions occur usually at some point on the face; whence they may spread to other parts of the face and may gradually involve the extremities and