Perianal Pulse Granuloma Induced by Plant-Derived Baby Wipes.

Pulse granulomas are unusual foreign body reactions to exogenous plant material, featuring the presence of hyaline ring structures and granulomatous inflammation. Pulse granulomas have been reported to occur in the oral cavity, gastrointestinal tract, and respiratory tract. Cutaneous pulse granulomas are exceedingly rare. All reported cases have been closely associated with underlying pathology such as chronic inflammatory conditions, trauma, or surgical procedures which likely facilitated implantation of exogenous plant material. We report a novel case of a cutaneous pulse granuloma presenting in the perianal region of an otherwise healthy man. The authors propose that the source of the exogenous plant material is plant-derived baby wipes, which the patient had been using daily to the perianal region.