More recently, NTRK1 rearrangements have been further identified in other tumor types, including Spitzoid melanoma (16.4%, 23/140) [8], intrahepatic cholangiocarcinoma (3.6%, 1/28) [9], glioblastoma (1.1%, 2/185) [10], pediatric high grade glioma (7.1%, 8/112) [11] and sarcoma (1%, 1/103) [12]. Here, NTRK1 is linked to neoplasm.