Sclerema neonatorum is a rare disease of earlv infancy, characterized by swellings in the subcutaneous fat, of characteristic distribultion on the back, shoulders, buttocks, and cheeks. In these lesions the fat crystallizes out during life, probably as reutral fat, and in well-marked cases the crystals give rise to an inflammatory reaction of the " foreign body " type, with giant cells. In thes...