Genetic polymorphisms attributable to mutations in the promoter and exon 1 of the MBL2 gene appear to be relatively common in pediatric patients with infectious diseases. Low serum MBL levels may play a role in the high sensitivity of pediatric CMV infections.
Background: Histiocytic necrotizing lymphadenitis, also known as Kikuchi-Fujimoto disease (KFD), is a self-limiting inflammatory disease with low incidence and high misdiagnosis rate in children. Furthermore, cases where the clinical presentation resembles acute appendicitis are very rare.Case Presentation: A 14-year-old boy was misdiagnosed as acute appendicitis and received operative treatment at his early visit. He suffered from abdominal pain, vomiting, diarrhea, fever, and lymphadenitis at the ileocecal junction, which were found by B-ultrasonography examination and surgery. Lymphadenectomy, as well as appendectomy, was performed, and KFD was identified by pathological examination. The patient was transferred to our hospital for further therapy because of recurrent fever and abdominal pain after the appendectomy. His temperature became normal after methylprednisolone was administered, and no recurrence was observed till now during follow-up.Conclusions: Necrotizing lymphadenitis involving mesenteric lymph nodes may cause acute-appendicitis-like symptom; KFD should be a diagnostic consideration for mesenteric lymphadenitis.
Background and aim: Mannose-binding lectin (MBL) is an important component of innate immunity. Eearlier studies have reported that low plasma MBL levels determined by the polymorphism of mbl 2 , were more common in children with recurrent infections. However, seldom study covered the haplotypes and exon2. In this study, we investigated the single nucleotide polymorphisms and haplotypes of promoter , exon1 and exon2 in children with repeated respiratory tract infections.
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