title: What caused a "blood blister" to develop?
authors.forename: Merryl
authors.initials: M
authors.lastname: Leatherman
mesh_terms: D000328:Adult; D001768:Blister / Q000209:etiology*; D003937:Diagnosis, Differential; D045888:Ganglion Cysts / Q000175:diagnosis; D005918:Glomus Tumor / Q000175:diagnosis; D017789:Granuloma, Pyogenic / Q000150:complications / Q000175:diagnosis*; D006391:Hemangioma / Q000175:diagnosis; D006801:Humans; D008297:Male