• Qinqin Liu, Lu Fang, and Bo Li.
• Department of liver Surgery.
• Medicine (Baltimore). 2018 Nov 1; 97 (44): e13109e13109.

RationaleDesmoid fibromatosis is a rare benign neoplasm arising from musculoaponeurotic structures with the potential to infiltrate local tissues and recur locally. While the commonly affected regions are the shoulder, chest wall and back, thigh, head and neck, localization in the foot is rare and only a few cases have been reported. Deep-seated lesions of foot tend to spread along the fascia and nerve or tendon sheaths.Patient ConcernsWe present a case of a 41-year-old female with a 3 years history of a slowly enlarging painful mass in the right foot.DiagnosesDesmoid fibromatosis was diagnosed based on clinical manifestations, imaging findings and pathological examinations.InterventionsThe patient was treated by local incomplete resection.OutcomesThe patient recovered well postoperatively and was well followed up at our outpatient department with no evidence of recurrence during 16 months of follow-up after local excision.LessonsSurgical excision is recommended for symptomatic lesions located in the foot. However, it is difficult to excise thoroughly and periodic follow-up is needed to monitor for recurrence. Further study is warranted to determine whether patients benefit more from function preservation instead of complete resection.

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