KRT7 and neoplasm: The immunohistochemical examination was reevaluated and the result, from the end of August 2021, highlights the following: VIM negative in the tumor, positive in the stroma (highly excludes adrenal and renal origin; AE1-AE3 positive diffuse in the tumor; MELAN A negative (excludes with a high probability the adrenal origin); SYN negative (rules out the tumor’s zonal origin); CK 7 positive in the tumor cells (suggests an origin in a respiratory epithelium squamous metaplasia); Napsin A negative.