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Updated: Aug 17, 2026

Measuring Connectivity in the Primary Visual Pathway in Human Albinism Using Diffusion Tensor Imaging and Tractography
Published on: August 11, 2016
A patient with subclinical oculocutaneous albinism type 2 diagnosed on getting severely sunburned
Masahiro Kawai1, Tamio Suzuki, Shiro Ito
1Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Abstract:
P-gene-related oculocutaneous albinism (OCA2) is an autosomal recessive disorder. The phenotype is typically somewhat less severe than that of the tyrosinase-negative type (OCA1A). One of the mutations in the P gene, A481T, is associated with a mild phenotype, occasionally with no distinctive skin manifestations, which is called subclinical OCA. We present a Japanese patient having the A481T mutant allele in the P gene with subclinical oculocutaneous albinism diagnosed on getting severely sunburned. The A481T mutant allele is relatively common in the Caucasian population as well as in Japan, indicating that a number of subclinical patients of OCA2 might exist not only in Japan, but also all over the world.
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