“…In the last two decades WT1 nuclear expression has also been detected in other tumors, such as mesothelial and ovarian tumors, Sertoli cell tumor, desmoplastic small round cell tumor (Kumar-Singh et al, 1997;Shimizu et al, 2000;Zhang et al, 2003;Nakatsuka et al, 2006;Zhao et al, 2007). Since new recently generated antibodies against the N-terminal portion (clone 6F-H2) of WT1 are commercially available, an increasing number of benign and malignant tumors which exhibit exclusively WT1 cytoplasmic expression has been documented (Ueda et al, 2003;Lawley et al, 2005;Timár et al, 2005;Al Dhaybi et al, 2010;Schittenhelm et al, 2010;Bisceglia et al, 2010Bisceglia et al, , 2011aKang et al, 2010;Inagaki et al, 2011;Salvatorelli et al, 2011Salvatorelli et al, , 2015Wang et al, 2011;Singh et al, 2012;Magro et al, 2014aMagro et al, ,b, 2015a. Among these tumors, cytoplasmic expression of WT1 was also reported in a few series of rhabdomyosarcomas (Carpentieri et al, 2002;Sebire et al, 2005;Bisceglia et al, 2010) or in single case reports (Fraternali-Orcioni et al, 2010;Bisceglia et al, 2011a,b).…”