Abstract
Extraabdominal chest wall desmoid tumors are uncommon soft tissue tumors. This study was performed to examine the outcomes of patients with extraabdominal chest wall desmoid tumors and adjacent structures treated with surgery. A detailed retrospective clinicopathological study was performed in 17 patients (8 men and 9 women) treated in our institution for extraabdominal desmoid tumors of the chest wall between March 2001 and June 2017. The patients had a median age of 44 years (range, 17-62 years), and the mean pathological diameter of the resected tumors was 92.1mm. Complete resection was performed in 13 of the 17 patients (76.5%). One patient had positive microscopic margin and three had gross residual disease. Chest wall reconstruction surgery was necessary in five patients (29%), synthetic patches were used in two patients, muscle flaps in two patients, and a metal plate in one patient. Complications were found in one patient, and there were no cases of operative mortality. Five patients (29%) received postoperative adjuvant therapy (only radiotherapy in three, radiotherapy and chemotherapy in two). Follow-up was complete in all patients and ranged from 9 to 202 months (median 76 months). One of the three patients with gross residual disease showed no change in tumor size during the 114 month follow-up period. Recurrences were found in five patients (29%), four of whom were treated by surgery. Second or more operations were performed in three of these patients. All sites of recurrence were around structures the first resected tumors. The mean recurrence time was 20.8 months after surgery. Desmoid tumors of the chest wall are locally aggressive tumors with a high recurrence rate. Surgical treatment requires wide radical resection. Multicentric and long-term investigations would be helpful for management of desmoid tumors because of the low prevalence rate of this disease.
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