[Long-term prognosis of adenoid cystic carcinoma of the trachea].

A study was made on the prognosis of 26 tracheal adenoid cystic carcinoma surgery cases reported in Japan between January 1978 and January 1984. The study was based on a questionnaire sent to doctors who reported prognosis as of May 1991. Twelve cases out of the 26 cases underwent postoperative irradiation. Seven out of the 12 cases survived 9 to 13 years after surgery without any recurrence. Two out of the 12 cases survived 8 and 10 years after surgery with multiple pulmonary metastases. Three out of the 12 cases died of a local recurrence 3, 3 and 9 years after surgery. Four cases received irradiation after a local recurrence was revealed postoperatively. Three out of the 4 cases survived 9, 10 and 11 years after surgery, but 1 out of the cases died 6 years after surgery. Four cases received no irradiation not only after surgery but also after detection of a local recurrence. All of them died within 9 years after surgery. There were six cases who underwent no postoperative irradiation and showed no local recurrence. One out of the 6 cases died of pancreas cancer 7 years after surgery, but the other cases survived 8 to 11 years after surgery without any recurrence. A study was also made on the prognosis of 9 cases with adenoid cystic carcinoma of the trachea who underwent surgery at Keio University and Tokai University until April 1982 (4 cases overlap with the above-mentioned cases). Six out of 9 cases received postoperative irradiation. Four cases survived 9 to 12 years after surgery without any recurrence.(ABSTRACT TRUNCATED AT 250 WORDS)