软骨发育不全综合征( chondrodysplasia syndrome , CHD )是一组软骨发育障碍性疾病。187600 ) 、重症软骨发育不全伴躯体发育延迟与黑棘皮病,又称SADDAN型软骨发育不良症( severe achondroplasia with developmental delay and acanthosis nigricans , SADDAN , MIM.602613 )和颅缝早闭( MIM.这类疾病的临床表现多样,但均具有身材矮小、多发性软骨发育不全的特点。病因与成纤维细胞生 ......