<prompt> Nezelof;s syndrome is recurrent episodes of:AppendicitisCholecystitisIntestinal obstructionPneumonia  <response>: Nezelof Syndrome Nezelof syndrome also known as Thymic dysplasia with normal immunoglobulins An autosomal recessive congenital immunodeficiency condition due to underdevelopment of the Thymus It causes severe infections and malignacies Treatment: Antimicrobial therapy, IV immunoglobulins, bone marrow transplantationm thymus transplantation and thymus factors Ref: internet sources 