“…It has been reported that telocytes are present in many layers of the heart, (Bani et al, 2010; Popescu et al, 2010; Rusu et al, 2017; Yang et al, 2014; Zhou et al, 2015), with more cells in the atria than in the ventricles and in the subepicardium than the endocardium (Liu et al, 2011). Telocytes give immunopositive reactions with many immunostaining markers, such as c‐kit, CD34, PDGFR‐α, PDGFR‐β, vimentin, EGFR, tau, SMA, S100, connexin, caveolin, and sca‐1 (Chang et al, 2015; Hinescu et al, 2006; Hostiuc, Marinescu, Costescu, Aluaș, & Negoi, 2018; Suciu et al, 2010; Zhou et al, 2015). In some studies, only the CD34 or c‐kit immunopositive cells were accepted as telocytes (Hostiuc et al, 2018; Nour, Sarhan, Mazroa, & Gawish, 2017).…”