Onychoscopy of non‐infectious nail abnormalities in patients after allogeneic hematopoietic stem cell transplantation

Abstract

Nail abnormalities after allogeneic hematopoietic stem cell transplantation procedure (alloHSCT) are often reported. Usually they are related to chronic graft‐versus‐host disease (cGvHD). So far, only clinical manifestations of selected nail abnormalities have been described, without the presentation of dermoscopic images. In this article we present morphologic and dermoscopic manifestations of potential non‐infectious nail abnormalities in patients after alloHSCT procedure based on reviewed literature and our own experience with dermoscopic iconography. In majority of studies published till now nail changes are not connected to severity of other cGvHD symptoms, however, e.g. the presence of pterygium inversum unguis may be an indicator of lung dysfunction. As nail changes may be an early sign of cGvHD and always present in association with other manifestations, routine clinical assessment should include nails examination. Knowledge of possible presentation of nail involvement after alloHSCT may be valuable for treating physician.

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