“…11 All available PTCH1 molecular data of the Japanese BCNS patients also indicated a dispersed distribution of mutations in all regions and suggested no founder effect (Table 3). 16,[18][19][20][21][22][23][24][25][26] The typical symptoms of the Japanese BCNS patients are characterized by palmar and plantar pits, odontogenic keratocysts and abnormal skeletons and are sometimes accompanied by BCC, especially in elderly patients. On the other hand, BCC is observed at a frequency of up to 97% in Caucasian BCNS patients with the same symptoms as the Japanese.…”