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Hypophosphatemic rickets associated with epidermal nevus syndrome and giant hairy nevus
Yen-Yin Chou1, Sheau-Chiou Chao, Chiou-Nan Shiue
1Departments of Pediatrics, National Cheng-Kung University Hospital, Tainan, Taiwan.
Abstract:
The association of hypophosphatemic rickets and epidermal nevus or giant hairy nevus is rare. We report two patients with hypophosphatemic rickets, one associated with epidermal nevus syndrome and the other with giant hairy nevus, and describe their clinical features and variable response to treatment. The abnormal nevus tissue may have contributed to the pathogenesis of hypophosphatemic rickets. We did not find a PHEX gene mutation in these two patients, and the mechanism for their rickets may be different from that in X-linked hypophosphatemic rickets.
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