Badhusfötter – ny diagnos i Sverige: Case Report of Pseudomonas Hot-Foot Syndrome in Uppsala, Sweden

During February and March 2019, an accumulation of clinically similar erythematous plantar nodules was observed at the University Children's Hospital and several primary care facilities in Uppsala, Sweden. At least 20 children sought medical advice, and all cases presented with a recurrent plantar hidradenitis after within a day after visiting Uppsala's largest waterpark and arena for swimming. The presented symptoms were identical with a condition called pseudomonas hot-foot syndrome described in the literature. An investigation led by the local public health authorities revealed heavy growth of Pseudomonas aeruginosa in water-filled toys in a children's play area and in samples taken from the floor of a pool where the surface was partly damaged. After closing the affected part of the pool and removal of the contaminated toys, no more people sought medical advice. Pseudomonas hot-foot syndrome is believed to be more frequent than diagnosed today, and increased awareness is essential to avoid unwarranted diagnostic tests and treatments, and to identify and eradicate the source of infection. Under februari och mars 2019 observerade personal vid Akademiska barnsjukhusets akutmottagning en anhopning av barn som sökte vård på grund av ömmande och rodnande svullnader på fotsulorna. Epidemiologiskt fanns en tydlig koppling till Uppsalas största simanläggning. Pseudomonas aeruginosa kunde isoleras från ihåliga leksaker från en lekhörna i badet samt från botten av en grund bassäng. Efter att leksakerna togs bort och bassängdelen stängdes har inga nya fall registrerats. Tillståndet beskrivs som en variant av palmoplantar ekkrin hidradenit och har benämnts »pseudomonas hot-foot syndrome«, vilket på svenska har föreslagits namnges som badhusfötter.