Introduction.

Desmoid tumors or aggressive fibromatosis correspond to rare mesenchymal neoplasms. They are locally aggressive tumors that occur especially in young people, they do not develop distant metastases, but are associated with locoregional invasion and a high recurrence rate after resection. Its etiology is unknown, but it has been associated with Gardner syndrome, trauma, pregnancy, hyperestrogenic states, and puerperium. The objective of this article was to review the topic based on a clinical case.

Clinical case.

The case of a puerperal patient with progressive and rapid increase in abdominal volume is presented. An abdominal and pelvic CT scan was performed, which confirmed the presence of a well-defined intraperitoneal mass. The patient underwent surgery with excision of the mass and histological confirmation of a desmoid tumor from the pathology sample.

Discussion.

Desmoid tumors have an incidence of 2 to 4 cases per million inhabitants per year, with a slight predominance in females, and represent less than 3% of soft tissue tumors. Although the tumor can be located intra-abdominal or in the wall, the most common location is in the extremities.

Conclusions.

The suspicion and detection of the desmoid tumor is essential, as well as its adequate study to determine the surgical treatment as it was done in this case.

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