XXXX of the bronchus presenting with a negative chest X-ray and normal pulmonary function in two teenagers: two case reports and review of the literature.

@entity1 @entity3975 @entity5 @entity1353 @entity55 @entity3
Two adolescents presented with a history of @entity1353 upon exertion and cough. In both cases, the chest X-ray and pulmonary function testing, including flow-volume loop, were normal. A @entity5 was diagnosed by CT scan, which was ordered after each @entity1 had an episode of hemoptysis. The sedimentation rate was the only abnormal laboratory test in both cases. @entity3975 of the bronchus, a rare @entity5 in childhood, was found at pathology in both cases. There was no evidence of @entity3 to local lymph nodes or distal sites. There were 47 previously reported cases in @entity1 . Recurrent @entity55 and persistent cough were the most common presenting findings. These @entity5 are of low-grade malignant potential but they can become locally invasive, extending into cartilage and surrounding soft tissue. Prognosis is good with complete resection.
