Delayed and Persistent Dermographia

Delayed pressure urticaria syndrome: a clinical expression of interleukin 1

“…The presence of vesicles and bullae surmounting the large delayed hives, reported only once before (14). speaks to the intensity of our patient's reaction.…”

Bullous delayed pressure urticaria: pathogenic role for eosinophilic granulocytes?

“…We describe a patient with the rare bullous form of DPU and associated CU as well as delayed dermographism. So far only three patients with bullous DPU have been reported 26–28 . Of these three patients one also had associated CU 26 .…”

“…To our knowledge, only three cases of bullous DPU have been described thus far 26–28 . By histological and immunofluorescence studies, we further characterized the eosinophil‐rich leucocytic infiltrate in a patient with bullous DPU.…”

Bullous lesions on the extremities of an incarcerated man

“…A very early report described a 45-yearold man with a 10-year history of diffuse urticaria and delayed dermographism, who developed an urticarial vesicular eruption several hours after carrying a golf bag. 4 Additional reports have described the development of bullous DPU in patients with a known history of DPU and CIU. 3,5 In these cases, pressure challenge confirmed the diagnosis, with erythema and bullae developing within 12-24 h of test initiation.…”

“…Bullous DPU is considered a ‘rare and maximal variant of DPU’, with only a few cases published since 1950 (Table ). A very early report described a 45‐year‐old man with a 10‐year history of diffuse urticaria and delayed dermographism, who developed an urticarial vesicular eruption several hours after carrying a golf bag . Additional reports have described the development of bullous DPU in patients with a known history of DPU and CIU .…”