Between January 1986 and December 1995, 24 patients were treated surgically for thymoma. There were17 males and 7 females, and their ages ranged from 23 to 69 years old and mean age was 49 years. Thymomas were associated with fourteen myasthenia
gravis, and classified histologically as lymphocytic in 12 patients, mixed in 8, epithelial in 4 , and classified clinically as stage I in II, stage II in 4, stage III in 8 and stage VI in 1 patients. Eleven patients with non-invasive thymoma had
received surgical resection, and 10 out of 13 patients with invasive thymoma were able to undergo complete resection. A partial resection or tissue biopsy followed by radiation or chemotherapy was done with the remaining three patients. Three
died
for
had improvement of symptom, two relapse and fifteen had no symptom during follow up ranged from 25 days to 60 months.
In fourteen cases of thymoma with myasthenia gravis, one died due to myasthenic crisis, two showed symptom aggravation, six had less medical treatment and five patients had medical treatment as same as dosage received preoperatively.
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