[17p13.3 duplication as a cause of psychomotor developmental delay in an infant - a further case of a new syndrome].

17p13.3 duplication is a rare and heterogeneous genetic syndrome. Microdeletions of this region are responsible for the symptoms of Miller-Dieker syndrome.

[Benign acute childhood myositis (BACM)--cases report].

Benign acute childhood myositis (BACM) is characterised by sudden calf pain and inability to walk. We analyzed the characteristics of seven boys and two girls with BACM treated in the Pediatric Department from April 2005 to March 2009. The mean age at onset of symptoms was 7 +/- 2 years.

[Borreliosis in children - clinical manifestation, diagnosis and treatment].

Lyme Disease (Borreliosis) is a multisystem inflammatory disease caused by the spirochete Borrelia burgdorferi, transmitted by the bite of ixodes infected ticks. We would like to present our experience with the treatment of borreliosis in collaboration with the Warsaw Medical Academy's Department of Infectious Disease. Fifty-nine children (aged between 14 months to 16 years) were hospitalized or ambulatory treated due to borreliosis during 5 years between 1997 and 2001.