Cossmann J, Wagner U A, Schmitt O
Klinik und Poliklinik f. Orthopädie Universität Bonn.
Z Orthop Ihre Grenzgeb. 1998 May-Jun;136(3):278-80. doi: 10.1055/s-2008-1054236.
Lipoatrophia semicircularis (LAS) represents an isolated fatty atrophy usually located at the lower extremity. The atrophy is circular and painless and usually resolves without therapy. The skin modifications occur within a few days or weeks. The etiology is unknown.
In the following we present a case of LAS with a segmental dysfunction of the third ipsilateral lumbal root of a 43-year-old women. It was possible to provoke a referred pain into the area of atrophy by passive motion of the lumbal spine into the plane of resistant.
LAS is rare and slightly known among orthopedists. Knowledge of the typical morphological modifications will lead to diagnosis. In most of the cases further diagnostic measures are not necessary. We recommend a segmental investigation of the spine in the case of secured diagnosis.
半圆形脂肪萎缩症（LAS）表现为一种孤立性脂肪萎缩，通常位于下肢。萎缩呈圆形且无痛，通常无需治疗即可消退。皮肤改变在几天或几周内出现。病因不明。
在此我们呈现一例43岁女性患有LAS且伴有同侧第三腰神经根节段性功能障碍的病例。通过将腰椎被动活动至抵抗平面，可诱发萎缩区域出现牵涉痛。
LAS较为罕见，骨科医生对此了解甚少。了解典型的形态学改变有助于诊断。在大多数情况下，无需进一步的诊断措施。确诊后，我们建议对脊柱进行节段性检查。
