This healthy 48 year old woman developed dramatic symmetric asymptomatic deposition of fat in her back, upper arms and neck. A complete physical examination, blood chemistries, lipid profile, thyroid function studies, and blood count were normal. The lower trunk, face, distal upper extremities, and legs were normal. Biopsy demonstrated normal fat. Benign symmetric lipomatosis is more common in men than woman, and most commonly involved the neck and upper arms. Howeverm the trunk and lower extremities may be preferentially involved. Although the deposition of adipose tissue may be gradual, it can occur over a period of a few months and is not known to disappear spontaneously. The cause is unknown, and laboratory studies are usually normal.
symmetric massive deposition of fat in neck upper trunk, and upper arms