This report describes a four-years-old girl, with idiopathic isolated Hipoglosal Nerve (HN) plsaty. She presented unable to move the tongue towards the opposite side for three days. Blowswell, flickers right. No clinic to another level. It does not report previous trauma ororopharyngeal manipulation. Rest of complete neurological examination, including cranial nerve examination, normal. Viral and mycobacterial serologieswas extracted with negative results. Magnetic nuclear resonance was normal.
Each Cranial Nerve (CN) is tested by performance of a specific motor or sensory test. Testing in infants is often by observation for specific movements and responses, and is less reliable. Function of HN or CN XII, in a child or adolescent is tested by asking the patient to stick out their tongue; normally the tongue should remain in the midline. In patients with peripheral lesions of CN XII, the tongue points towards the paretic side. The importance of the HN, is often devalued; because damage to the 12th nerve rarely causes much inconvenience.
HN palsy (HNP) is an uncommon neurological abnormality, especially in the pediatric age. There are few cases of idiopathic isolated unilateral HNP, which should be diagnosed through exclusion.
Craneal nerves exploration; XII craneal nerve