cartilage hair hypoplasia (chh), is a rare cause of metaphyseal chondrodysplasia and short stature. other features included hair abnormality, immunodeficiency, anemia, gastrointestinal disorders (hirschsprung disease, celiac, …) and increased risk of cancer. the disease is an autosomal recessive disorder and previously has not been reported in iran. we report a 9-year-old boy diagnosed as carti...

  Cartilage hair hypoplasia (CHH), is a rare cause of metaphyseal chondrodysplasia and short stature. Other features included hair abnormality, immunodeficiency, anemia, gastrointestinal disorders (Hirschsprung disease, celiac, …) and increased risk of cancer. The disease is an autosomal recessive disorder and previously has not been reported in Iran. We report a 9-year-old boy diagnosed as car...

Cartilage hair hypoplasia (CHH), is a rare cause of metaphyseal chondrodysplasia and short stature. Other featuresincluded hair abnormality, immunodeficiency, anemia, gastrointestinal disorders (Hirschsprung disease,celiac, …) and increased risk of cancer. The disease is an autosomal recessive disorder and previously has notbeen reported in Iran. We report a 9-year-old boy diagnosed as cartilag...

Shinji Higuchi1, Masaki Takagi1, 2, Satoshi Shimomura3, Gen Nishimura4, and Yukihiro Hasegawa1, 2 1Department of Endocrinology and Metabolism, Tokyo Metropolitan Children’s Medical Center, Tokyo, Japan 2Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan 3Department of Orthopedics, Tokyo Metropolitan Children’s Medical Center, Tokyo, Japan 4Department of Radiology, Tokyo ...

Opsismodysplasia (opsismos in Greek = late) is a rare chondrodysplasia, first described in 1977 by Zonana et al as a unique chondrodysplasia and designated “opsismodysplasia” only in 1984. The disorder is characterised clinically by micromelia with extremely short hands and feet and respiratory distress responsible for death in the first few years of life. The main radiological features include...

BACKGROUND The Schmid type of metaphyseal chondrodysplasia (MCDS) is generally due to mutations in COL10A1 encoding for type X collagen of cartilage. METHODS We performed a study on the genes coding for the RNA components of RNase MRP (MRPR) and RNase P (H1RNA) among 20 patients with diagnosis of MCDS and no mutations in COL10A1. RESULTS Two patients were found to be homozygous for a base s...