Case of generalized pustular psoriasis with end‐stage renal disease successfully treated with granulocyte monocyte apheresis in combination with hemodialysis

Granulocyte monocyte apheresis (GMA) is an extracorporeal apheresis instrument that removes activated neutrophils and monocytes. Generalized pustular psoriasis (GPP) is characterized by neutrophil infiltration into the epidermis that causes Kogoj's spongiotic pustule. Thus, GMA is one of the useful therapies for GPP, and it was approved for the treatment in 2012 in Japan. Herein, we report a case of GPP with end‐stage renal disease (ESRD) successfully treated with GMA in combination with hemodialysis (HD). A 54‐year‐old Japanese female visited our outpatient clinic because of erythema with pustules on her trunk and extremities over the past 4 months. Histopathological examination showed an intraepidermal pustule filled with numerous neutrophils and spongiosis. These findings led to the diagnosis of GPP. She had ESRD and had been treated with HD twice a week for approximately 4 years. During maintenance HD twice a week, weekly GMA was started at Tokai University Hospital. The skin symptoms disappeared after five administrations of GMA. We suggest that GMA is an effective therapy for GPP patients with ESRD who are treated with HD.