{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T12:59:40Z","timestamp":1791896380642,"version":"4.3.4"},"reference-count":53,"publisher":"Oxford University Press (OUP)","issue":"11","license":[{"start":{"date-parts":[[2010,5,17]],"date-time":"2010-05-17T00:00:00Z","timestamp":1274054400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2010,11,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Dysosteosclerosis (DSS), an extremely rare dense bone disease, features short stature and fractures and sometimes optic atrophy, cranial nerve palsy, developmental delay, and failure of tooth eruption in infancy or early childhood consistent with osteopetrosis (OPT). Bone histology during childhood shows unresorbed primary spongiosa from deficient osteoclast action. Additionally, there is remarkable progressive flattening of all vertebrae and, by adolescence, paradoxical metaphyseal osteopenia with thin cortical bone. Reports of consanguinity indicate autosomal recessive inheritance, yet more affected males than females suggest X-linked recessive inheritance. We investigated a nonconsanguineous girl with DSS. Osteosclerosis was discovered at age 7 months. Our studies, spanning ages 11 to 44 months, showed weight at approximately 50th percentile, and length diminishing from approximately 30th percentile to \u20132.3 SD. Head circumference was +4 SD. The patient had frontal bossing, blue sclera, normal teeth, genu valgum, and unremarkable joints. Radiographs showed orbital and facial sclerosis, basilar thickening, bone-in-bone appearance of the pelvis, sclerotic long bone ends, and fractures of ribs and extremities. Progressive metaphyseal widening occurred as vertebrae changed from ovoid to flattened and became beaked anteriorly. A hemogram was normal. Consistent with OPT, serum parathyroid hormone (PTH) concentrations reflected dietary calcium levels. Serum bone alkaline phosphatase, osteocalcin, and TRACP-5b were subnormal. The iliac crest contained excessive primary spongiosa and no osteoclasts. No mutations were identified in the splice sites or exons for the genes encoding chloride channel 7, T-cell immune regulator 1, OPT-associated transmembrane protein 1, and monocyte colony-stimulating factor (M-CSF) and its receptor C-FMS, ANKH, OPG, RANK, and RANKL. Genomic copy-number microarray was unrevealing. Hence, DSS is a distinctive OPT of unknown etiology featuring osteoclast deficiency during early childhood. How osteopenia follows is an enigma of human skeletal pathobiology. \u00a9 2010 American Society for Bone and Mineral Research.<\/jats:p>","DOI":"10.1002\/jbmr.131","type":"journal-article","created":{"date-parts":[[2010,5,17]],"date-time":"2010-05-17T18:09:03Z","timestamp":1274119743000},"page":"2527-2539","source":"Crossref","is-referenced-by-count":40,"title":["Dysosteosclerosis presents as an \u201cOsteoclast-Poor\u201d form of osteopetrosis: Comprehensive investigation of a 3-year-old girl and literature review"],"prefix":"10.1093","volume":"25","author":[{"given":"Michael P","family":"Whyte","sequence":"first","affiliation":[{"name":"Division of Bone and Mineral Diseases, Washington University School of Medicine at Barnes-Jewish Hospital, St Louis, MO, USA"},{"name":"Center for Metabolic Bone Disease and Molecular Research, Shriners Hospital for Children, St Louis, MO, 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