A sural nerve biopsy is not required to diagnose most peripheral neuropathies, and conventional methods of clinical investigation such as electromyography, nerve conduction velocity, quantitative sensory and autonomic testing, and relevant laboratory assessment should be performed before embarking on this procedure (5).
Video: Baby's soft spots (fontanels) A baby's skull consists of several bones, and there are soft spots â or fontanels â where they meet. A baby's soft spots are covered by a thick fibrous layer. The soft spots are safe to touch and typically close within 12 to 18 months, when the skull bones fuse together. June 28, 2016.
1 It persists until approximately 18 months after birth. 2  It is at the junction of the coronal suture and sagittal suture. 3  The fetal anterior fontanelle may be palpated until 18 months. 4  In cleidocranial dysostosis, however, it is often late in closing or may never close.