Vibratory urticaria

Vibratory urticaria is a rare type of physical skin reactivity characterized by the occurrence of local erythematous, edematous, cutaneous and subcutaneous lesions that result from stimuli of a vibratory nature. A local stimulus of sufficient intensity will also result in generalized or facial erythema accompanied by a transient headache. The histamine release that is associated with urticarias has implicated aberrant degranulation of mast cells in their pathogenesis. A missense variant in ADGRE2 gene has been found in families with vibratory urticaria, implicating the encoded adhesion G-protein-coupled receptor (GPCR) as a mechanosensor in mast cells.