"Ultrasound "
"Plain radiograph / CT / MRI "
"Spinal "
"SADDAN syndrome: severe achondroplasia with developmental delay and acanthosis nigricans"
Expected headings
"Associations"
"Ultrasound "
"Plain radiograph / CT / MRI "
"Cranial"
"Spinal "
"Chest"
"Pelvis and hips"
"Limbs"
"There is a prevalence of approximately 1 in 25,000-50,000 births with males affected more frequently than females 18."
"There is often a danger of cervical cord compression due to narrowing of the foramen magnum."
"large anterior fontanelle in infancy; may persist to 5 or 6 years of age 19"
"the limbs may also appear thickened but are in fact normal in absolute terms; thickening is perceived due to reduced length"