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May 20, 1899, Vol XXXII, No. 20 >
ARTICLE | May 20, 1899

MYOSITIS OSSIFICANS PROGRESSIVA.

JAMA. 1899;XXXII(20):1124. doi:10.1001/jama.1899.02450470046022.
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ABSTRACT

Nicolaysen (Norsk Magasin fur Lœgevidenskaben, April, 1899) describes a new case of this mysterious condition. It concerns a 4½-year-old girl whose family history does not contain any especially noteworthy features. During the first two years of life she seemed to develop normally, but at the end of this time she gradually grew stiff in the right shoulder and the back, so as to become quite helpless. This condition came on without any recognizable cause, such as trauma or infectious disease. When examined, the peculiar stiffness and helplessness were found to be due to a complete ossification of the muscles of the back, nucha and shoulders, the scapulæ being fixed to the thorax; there were hard linear masses in the muscles of the right arm and forearm. Both thumbs and both big toes were well formed but abnormally small. In 1897 Boks (Berlin. Klin. Woch., 1897, p. 885) collected 39 cases

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