Subcutaneous fat necrosis due to birth injury

**Definition:** Subcutaneous fat necrosis is a rare acute transient hypodermatitis that develops within first weeks of life in term infants.

**Long definition:** Subcutaneous fat necrosis is a transient compressive injury to the skin that develops within first weeks of life in term infants. The skin lesions are characterized by tender, firm, skin- to red-coloured nodules or plaques occurring particularly on the buttocks, shoulders, upper back, proximal limbs and cheeks.

**Exclusions:** - Subcutaneous fat necrosis of the newborn