Too few proteins lead to night blindness, perifollicular hyperkeratosis, xerophthalmia, keratomolacia, increased morbidity and mortality in young children.

维生素不足可导致夜盲、囊周化过、笥眼炎、儿童发病率我死亡率增高等。

Histopathologic examination showed hyperkeratosis of epidermis, increased thickness of the granular layer and dilation of subpapillary vessels filled with red blood cells.

组织病理学检查示表皮化过,呈乳头瘤样增生,颗粒层增厚,真皮乳头见大量增生扩细血管,管腔内含红细胞,血管周围淋巴细胞浸润。

Histopathology showed moderate hyperkeratosis and rete ridge elongation with the epidermal thinning above the papillar layer and a few melanophages in the dermis.

腋下、腹股沟、乳房下色素沉着15年,无明显自觉症状。