1. Achondroplasia achondroplastic Achorion achroacyte achroma achromacyte achromasia achromat achromatic achromatically achromatic figure achromatic lens achromatin achromatise achromatised achromatising achromatism achromatize achromatized achromatizing achromatocyte achromatolyses achromatolysis achromatope achromatopsia achromia achromic

2. Ultrastructural findings in achromic skin are similar in both conditions. But in achromia with malignant melanoma, melanocyte abnormalities are also present in normal skin and the role of immunological factors is discussed.

3. Vitiliginous achromia with malignant melanoma shows some discrepancies with vitiligo. In both achromic and normal skin, four bands A, B, C, D of tyrosinase activity are observed; in vitiligo only bands A and B appear.