A case of mucous gland adenoma arising from the main bronchus of the middle lobe of
the right lung is reported, with review of related literatures.
The patient, a 12 year-old Korea male, was admitted to Pusan National University
Hospital with complaints of progressive coughing and dyspnea. Roentgenographic studies
revealed a well defined mass involving the right middle lobe of the lung. With the
impression of benign tumor, right middle lobectomy was performed.
The gross specimen revealed a polypoid mass involving the main bronchus, measuring
4.5×3.7×2.5 ㎝. The cut surface of the mass revealed yellow-gray myxoid tissue.
Histologically, the mass consisted of glandular structures filled with mucus, which
proved to be acid one on histochemical study. The glandular lining was made up of a
single layer of berign mucus cells, many of them being flattened.
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