International Journal of Otolaryngology and Head & Neck Surgery

Volume 3, Issue 2 (March 2014)

ISSN Print: 2168-5452   ISSN Online: 2168-5460

Google-based Impact Factor: 0.57  Citations  

A 7-Year-Old Boy with Light Cupula of the Horizontal Semicircular Canal

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DOI: 10.4236/ijohns.2014.32018    4,309 Downloads   6,217 Views  Citations
Author(s)

ABSTRACT

Report of childhood positional vertigo is very rare. We present a 7-year-old boy who revealed persistent direction-changing geotropic positional nystagmus. In the supine position, horizontal nystagmus toward the left continued as long as the position was maintained. However, it ceased when the head was turned to the right side by 45°. With greater head turn (right-ear-down), nystagmus toward the right lasted for more than 1 minute. In the left-ear-down position, horizontal nystagmus toward the left occurred and lasted for more than 1 minute. After the disappearance of positional nystagmus, we detected canal paresis of the right ear by caloric test. We considered that the pathophysiology of the persistent type of geotropic nystagmus is a result of light debris cupulolithiasis of the horizontal canal.

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Ichijo, H. (2014) A 7-Year-Old Boy with Light Cupula of the Horizontal Semicircular Canal. International Journal of Otolaryngology and Head & Neck Surgery, 3, 89-94. doi: 10.4236/ijohns.2014.32018.

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