It is thought that<unk> <unk>  is the result of abnormal budding of the ventral  portion of the primitive foregutdestined to become the tracheobronchial tree between days 26 - 40 of  gestation.  At such, it is often found in relation to the trachea or esophagus. On rare occasions, they may be found in the cranial, cervical, mediastinal, and abdominal regions. If  the cell mass maintains its connection with the tracheobronchial tree, the<unk>  becomes intrapulmonary or in close association with the lungs. If separated, there is no contiunity with the bronchia lumen. Such<unk>  increases in size gradually due to secretions produced within the cavity, leading to compressive symptoms.
Bronchogenic cyst pathophysiology
Peritonsillar abscess pathophysiology
Adenocarcinoma of the lung pathophysiology
Mucoepidermoid carcinoma pathophysiology
Desmoid tumor pathophysiology
Ganglioneuroma pathophysiology
Malignant fibrous histiocytoma pathophysiology
Lung mass pathophysiology