“…CTN almost always have a polylobulated surface, but when they are deep-seated, especially on the plantar surface of the feet, they can develop a cerebriform aspect. [3][4][5][6][7][8][9][10][11][12][13] Classification of CTN was established by Uitto et al 1 in 1980 according to clinical, histopathologic, and genetic features. 1 Our review suggested a modified classification, able to categorize almost all our cases (Table II).…”