Diffuse Pan Bronchiolitis Presenting with Bronchiectasis: A Case Report.

Diffuse Pan Bronchiolitis (DPB) is a peculiar airwaydisease with its pathogenesis enrooted in a complexinterplay of various genetic and environmental factors.Airway inflammation, chronic airflow limitation andsuppuratives in pulmonary infections are the distinctivefeatures of this entity. It poses a close differential toother frequently encountered pulmonary conditionslike chronic bronchitis, emphysema, bronchiectasis andconstrictive bronchiolitis. Deferment in diagnosis canculminate in irreversible airway remodeling andprogressive respiratory failure. Hence a punctualrecognition is vital. Macrolide group of drugs are primemodality of therapy and the response to therapy isbenignant. We herein describe a case of DPB withdevelopment of sequelae owing to its delayeddetection

Adenoid cystic carcinoma of the trachea.

Primary salivary gland ‑ type tumors of the lung and airways being unusual, they pose a diagnostic challenge on small biopsies and are usually consigned as non‑small cell lung carcinomas. Since the clinical behavior of these tumors is different from the conventional lung tumors, it is important to accurately diagnose them. Among this category of tumors, adenoid cystic carcinoma (ACC) of the lungs and airways is exceedingly rare. Few large studies and maximum case reports have been reported in literature on ACC of the lungs and trachea so far. We herein report a rare case of primary ACC of the trachea diagnosed on bronchoscopic biopsy.

Pulmonary fibrosis and emphysema.

A 58-year-old male presented with symptoms of progressive dyspnoea on exertion and predominantly dry cough of six months duration. He was a cigarette smoker with a smoking index of 10 pack years. He had no history of fever, exposure to dusts or drug therapy. There was no history of similar illness in the family members or any symptoms suggestive of connective tissue disease (CTD). On physical examination, clubbing was observed and there were bibasilar fine endinspiratory crackles on auscultation. Oxygen saturation by pulse oximetry showed significant exercise desaturation from 94% to 77%.