ERBB2 and cancer: Of the 30 cancer patients, 2 were homozygous for TP53 p.Arg181Cys—a 23-year-old female patient diagnosed with HER2-positive metastatic positive breast cancer (3577-I-1/ Zic267-I-1) and a 19-year-old male diagnosed with stage I testicular cancer (2919-VI-1).