F lap design for rare congenital hand anomalies such as pollicization and cleft hand reconstruction could be a problem for inexperienced surgeons. Practicing on surgical models would be beneficial for improvement of understanding flap design. In previous studies, a human cadaveric hand with amputated thumb or a resin hand mold without thumb was used as a surgical model for pollicization. 1,2 Glove models glued Therapy Mesenchymal Stromal Cell Committee offers clear guidelines on the correct nomenclature. 5 Unless a matrix of rigorous functional assays and cell characterization on gene and protein level are performed which may have to be expanded to exosome/ microRNA interrogation or even to the omic level in the opinion of hardliners, 2 the moniker "mesenchymal stromal cells" appears to be justified.