ABSTRACT
Lung parenchyma involvement in recurrent respiratory papillomatosis (RRP) is rare, can be severe, and has variable outcomes. Although several reports have described the effects of different drugs (interferon alpha, indol-3-carbinol, cidofovir, etc.), there is no standard treatment for lung involvement in respiratory papillomatosis. We discuss herein the controversial effectiveness of cidofovir in light of a new observation of respiratory papillomatosis involving lung parenchyma. The reported case is one of rare pulmonary involvement in RRP and shows the effectiveness of intravenous cidofovir alone on symptoms, high-resolution computed tomography abnormalities, and pulmonary function tests. Aggravation after stopping cidofovir may also be interpreted as an indirect argument for the effectiveness of cidofovir in this case.
Subject(s)
Antiviral Agents/administration & dosage , Cytosine/analogs & derivatives , Organophosphonates/administration & dosage , Pneumonia/drug therapy , Pneumonia/virology , Cidofovir , Cytosine/administration & dosage , Female , Humans , Infusions, Intravenous , Lung/diagnostic imaging , Lung/pathology , Middle Aged , Papillomavirus Infections/complications , Papillomavirus Infections/drug therapy , Papillomavirus Infections/pathology , Pneumonia/pathology , Respiratory Function Tests , Respiratory Tract Infections/complications , Respiratory Tract Infections/drug therapy , Respiratory Tract Infections/pathology , Tomography, X-Ray Computed , Treatment OutcomeABSTRACT
A 3.2-kg newborn was intubated for neonatal respiratory distress owing to a congenital tracheal stenosis. The preoperative assessment showed a sphincter-like stenosis located 1 cm above the carina. The child was cured by resection-anastomosis through sternotomy under cardiopulmonary bypass. The pathological examination showed hypoplastic cartilage islets embedded in a fibroelastic conjunctive tissue. The posterior membranous region was preserved with the existence of smooth muscle cells. This curious malformation resembled a diaphragm at the junction between trachea and carina.
