In addition, these I YAP1 i -associated fusion genes seem to be specific for such neoplasms, since they would not be present in other skin tumours.[3] Similarly, in our study, these fusion genes were not detected in any case of NH, adnexal tumour that histologically could be confused with poromas. Poroid adnexal skin tumors with YAP1 fusions exhibit similar histopathologic features: a series of six YAP1-rearranged adnexal skin tumors. Concerning the molecular findings (Table 1), the presence of the I YAP1-NUTM1 i and I YAP1-MAML2 i fusion genes could be demonstrated in 46.7% and 30.0% of the poroid neoplasms, respectively. [Extracted from the article]