This report includes two cases of the nasolabila cyst at our hospital.
Case 1: A 55-year-old Japanese female visited our hospital on Nov. 14, 1980. She complained of slight swelling of the right side ala of her nose for past 4 months. The area began to swell progressively with oppressive pain. Extirpation of the cyst was carried out with general anesthesia on Jan. 28, 1981. The comparatively thick cyst wall had a soft and elastic consistency. Its fluid was mucous.
Microscopic examination revealed cystic lining with stratified columnar ciliated epithelium which included some goblet cells. The wall of the cyst was heavily infiltrate by plasma cells and lymphocytes.
Case 2: A 44-year-old Japanese female was seen on Nov. 25, 1982. She complained of pain and swelling of the gingiva of the right first and second incisors. Apical focuses were found by X-ray, however we recognized swelling of the right side ala of her nose. Besides two apical granulomas, we removed a cyst from the right side of the apertura piriformis on the periosteum. Its fluid was mucous.
Microscopic examination revealed stratified columnar epithelium with many goblet cells. The wall of the cyst was mildly infiltrated with chronic inflammatory cells.
In addition to these two cases, we analyzed 74 cases in 28 years of Japanese literature (1955-1982).
