Türk Kolon ve Rektum Hastalıkları Dergisi, vol.33, no.3, pp.58-63, 2023 (Peer-Reviewed Journal)
Aim: Desmoid tumors (DT) originate in musculoaponeurotic tissues. However, there is scarce data regarding DT-related clinical and oncological
outcomes. This study presents the oncological outcomes of patients who underwent surgery for abdominal DT in our clinic over a 10-year period and
compares the outcomes between sporadic and familial adenomatous polyposis (FAP)-associated DTs.
Method: The records of patients who underwent surgery for DT between January 2011 and 2021 were retrospectively analyzed.
Results: The study included 18 patients, of which 15 were female, and with a median age of 43 (range: 21-59) years. Of the 18 cases, four developed
DT following surgery for FAP coli syndrome. The mean age was lower in patients with FAP-associated DTs than in those with non-FAP-associated
tumors (28 vs. 46.5 years, p=0.574). After a follow-up period of 68.1 months (95% confidence interval: 12,799-123,519), four patients developed
recurrence, and the recurrence rate was higher (50% vs. 14.28%, p=0.130). Additionally, the time to recurrence was shorter in patients with FAPassociated DTs than in those without FAP (31.3 vs. 120.9 months, p=0.028). The tumor board decided that adjuvant tyrosine kinase inhibitor therapy
would be administered to four patients and adjuvant 50.4 Gy radiotherapy to three patients.
Conclusion: DT are more common in women. As recurrence is more common and the time from index surgery to recurrence is shorter in patients
with FAP-associated DTs, more intensive follow-up protocols would be necessary in this group.