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We described natural history of Pseudomonas aeruginosa septicemia in 9 year old boy, who was treated for acute lymphoblastic leukemia (ALL). After 14 day treatment of ALL the following signs and symptoms occurred: fever, earache with otorhoea, deafness, bilateral peripheral paralysis of n. VII, erythema, pneumonia, paralytic ileus. After 4 weeks of antimicrobial and supportive therapy, in the 10th week of chemotherapy, he achieved haematological remission. During continuation therapy, two-stage bilateral myringoplasty was performed. At present the maintenance therapy is continued, and in the future hearing aid and cochlear implant, will be applied.
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