Identification of a heterozygous ACAN mutation in a 15-year-old boy with short stature who presented with advanced bone age: a case report and review of the literature
| Autor: | Tae Youp Kim, Changwon Keum, Kyung Mi Jang, Seung Hwan Oh, Woo Yeong Chung |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Proband
medicine.medical_specialty Endocrinology Diabetes and Metabolism 030209 endocrinology & metabolism Short neck Case Report Short stature 03 medical and health sciences symbols.namesake Frontal Bossing 0302 clinical medicine 030225 pediatrics Internal medicine Medicine Aggrecan Sanger sequencing business.industry lcsh:RJ1-570 ACAN lcsh:Pediatrics Bone age medicine.disease Hypoplasia Dysmorphism Endocrinology Pediatrics Perinatology and Child Health symbols medicine.symptom business |
| Zdroj: | Annals of Pediatric Endocrinology & Metabolism Annals of Pediatric Endocrinology & Metabolism, Vol 25, Iss 4, Pp 272-276 (2020) |
| ISSN: | 2287-1292 2287-1012 |
| Popis: | Longitudinal bone growth is primarily mediated by the growth plate, which is a specialized cartilaginous structure. Aggrecan, encoded by ACAN, is a primary proteoglycan component of the extracellular matrix in both the growth plate and articular cartilage. Aggrecanopathies have emerged as a phenotype of genetic skeletal disease in humans. A heterozygous ACAN mutation causes short stature, premature growth cessation, and accelerated bone age maturation. We report the case of a 15-year-old boy with familial short stature, with height of 149 cm (Korean standard deviation score [SDS] of -3.6) and weight of 50.5 kg (-1.48 SDS). He presented with mild midfacial hypoplasia, frontal bossing, a broad chest, and a short neck. The father's and mother's heights were 150 cm (-4.8 SDS) and 153 cm (-1.69 SDS), respectively. The patient's bone age was 2–3 years more advanced than his chronological age, and no endocrine abnormalities were detected. Whole-exome sequencing followed by Sanger sequencing revealed a heterozygous ACAN mutation, c.512C>T (p.Ala171Val), in both the proband and his father. Short stature is generally associated with a delayed bone age, and this case suggests that ACAN mutations may be the most likely etiology among patients with short stature and an advanced bone age and should warrant early treatment. |
| Databáze: | OpenAIRE |
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