. Diseases of infancy and childhood . carious. ISTot infrequently we findno evidence of teeth until the child is 16 or 18 months old. Eachitic symp-toms appear later in the thorax than in the head, although they can beplainly made out during the first six months. Beaded ribs are especiallyprominent in advanced cases. There is a marked depression of the thoraxin a line parallel with and on either side of the sternum. This line cor-responds with the course of the beads. The so-called pigeon-breast orfunnel-breast (pectus carinatum) is frequently observed in rickets. The veins of the scalp are us
. Diseases of infancy and childhood . carious. ISTot infrequently we findno evidence of teeth until the child is 16 or 18 months old. Eachitic symp-toms appear later in the thorax than in the head, although they can beplainly made out during the first six months. Beaded ribs are especiallyprominent in advanced cases. There is a marked depression of the thoraxin a line parallel with and on either side of the sternum. This line cor-responds with the course of the beads. The so-called pigeon-breast orfunnel-breast (pectus carinatum) is frequently observed in rickets. The veins of the scalp are usually enlarged. Spinal rickets is espe-cially characteristic. The posterior curve of the spine is commonly knownas rachitic kyphosis. It extends from the middle-dorsal to the sacralregion. This kyphosis has been found in more than one-half of my cases. Thecurve can be lessened or it will disappear when the child is placed on itsback and extension is made on the extremities. The more importantrachitic deformities are:— RACHITIS. 313. Fig. 90. Fiff. 91,
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