History: History: since the 10th week of life, worsening inspiratory stridor with changing appearance.
Findings: 12 week old boy in reduced general condition; tachypnea; partially opisthotonic posture; jugulary retractions; inspiratory stridor in rest; Pulmo: bilateral same ventilation, in- and expiratory rhonchi.
Radiological findings:
MRI 1: T2-weigted transversal: subglottic hyperintense intratracheal soft tissue mass with a maximal length of ca. 10 mm craniocaudal. Also a 4 mm x 4 mm diameter. This causes the tracheal lumen to be about 10% of what it usually should be.
MRI 2: T1-weighted after contrast media: strong homogenous contrast media absprbtion of the subglottic intratracheal soft tissue mass after dose of Gadolinium-DTPA
