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Acroosteolysis is resorption of the distal bony phalanges. Acroosteolysis has two patterns of resorption in adults: diffuse and bandlike. The diffuse pattern of resorption has a widely diverse differential diagnosis which includes: pyknodysostosis, collagen vascular disease and vasculitis, Raynaud's neuropathy, trauma, epidermolysis bullosa, psoriasis, frostbite, sarcoidosis, hypertrophic osteoarthropathy, acromegaly, and advanced leprosy.〔Yu, Joseph. Musculoskeletal Imaging, Case Review Series. 2008.〕 The bandlike pattern of resorption may be seen with polyvinyl chloride exposure and Hadju-Cheney syndrome.〔 A mnemonic commonly used for acro-osteolysis is PINCHFO.〔http://radiopaedia.org/articles/pinch-fo〕 Pyknodysostosis, Psoriasis, Injury (thermal burn, frostbite), Neuropathy (diabetes), Collagen vascular disease (scleroderma, Raynaud's), Hyperparathyroidism, Familial (Hadju-Cheney, progeria), Occupational (polyvinyl exposure), Acroosteolysis may be associated with minimal skin changes or with ischemic skin lesions that may result in digital necrosis.〔Freedberg, et al. (2003). ''Fitzpatrick's Dermatology in General Medicine''. (6th ed.). McGraw-Hill. ISBN 0-07-138076-0.〕 == See also == * Nail anatomy 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「acroosteolysis」の詳細全文を読む スポンサード リンク
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