Vitamin D-Dependent Rickets Type II with Alopecia: Two Case Reports and Review of the Literature

The document discussed Vitamin D-dependent rickets Type II, a rare autosomal recessive disorder characterized by rachitic changes unresponsive to Vitamin D treatment and elevated levels of 1,25-Dihydroxyvitamin D3. The condition often includes alopecia of the scalp or body, particularly in cases with severe Vitamin D resistance. The authors presented two case reports of Saudi brothers with this disease and reviewed its key features, emphasizing the associated alopecia.