1. Results The primary sites of these 4 cases were later discovered, 2 in the aryepiglottic fold, 1 in faucial tonsil and 1 in the skin of the head, respectively.
2. Results The primary sites of these 4 cases were later discovered, 2 in the aryepiglottic fold, 1 in faucial tonsil and 1 in the skin of the head, respectively.
