Year 2018 / Volume 110 / Number 10
Letter
Desmoid fibromatosis of the esophagogastric junction

677-678

DOI: 10.17235/reed.2018.5630/2018

Raquel Díaz Ruiz, Virginia Flores Fernández, José Antonio Pajares Díaz,

Abstract
Desmoid fibromatosis is a mesenchymal clonal proliferation, which lacks metastatic potential. Nevertheless, it has an infiltrative growth and thus implies a high morbidity1. Although the etiology remains unclear, mutations in the B-catenin or APC genes are involved. Some risk factors include pregnancy, hormonal exposure or surgery. Desmoid fibromatosis can be sporadic (80%) or FAP-associated2. In sporadic cases, it is caused by mutations in the B-catenin (CTNNB1) gene. Whether it is FAP-associated or not should be determined, as the treatment for each condition is different. A radiologic test is essential for diagnosis, although a biopsy is necessary for confirmation. With regard to treatment, there is a wide range of different alternatives such as observation only, medical treatment or even surgery3. However, a recurrence rate that ranges from 30% to 40% have been reported in the major published series4 and thus, conservative treatment is more common nowadays. We present the case of an 82-year-old male with constitutional syndrome. A computed tomography was performed, which identified a 69 x 52mm mass in the oesophago-gastric union. A computed tomography guided biopsy was performed and the histological analysis identified a fusocellular tumor compatible with desmoid fibromatosis. Treatment was started with indomethacin. However, a control computed tomography 3 months later showed that the mass had grown. Thus, indomethacin treatment was stopped and tamoxifen treatment was started. The patient has had an excellent performance status since symptom presentation. In conclusion, desmoid tumors are rare and most are sporadic. However, they may also be associated with familial adenomatous polyposis syndrome. It must be emphasized that our patient did not have any risk factors and the anatomical location in the oesophago-gastric union is not a common location. Desmoid fibromatosis supposes a clinical challenge for diagnosis and treatment and thus, management should be individualized.
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References
1. Kasper B, Strobel P, Hohenberger P, et al. Desmoid tumors: clinical features and treatment options for advanced disease. Oncolo-gist. 2011;16:682---93
2. M. Garzón Benavides, A. Pizarro Moreno, R. García Lozano, et al. Registro Andaluz de la Poliposis Adenomatosa Familiar. Análisis de los pacientes incluidos. Rev Esp Enferm Dig 2010; 102:653-657
3. Escobar C, Munker R, Thomas JO, et al. Update on desmoid tumors. Ann Oncol. 2012;23:562---9
4. Ballo MT, Zagars GK, Pollack A, et al. Desmoid tumor: prognostic factors and outcome after surgery, radiation therapy or combined surgery and radiation therapy. J Clin Oncol 1999; 17: 158–167
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Díaz Ruiz R, Flores Fernández V, Pajares Díaz J. Desmoid fibromatosis of the esophagogastric junction. 5630/2018


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Publication history

Received: 29/03/2018

Accepted: 09/05/2018

Online First: 28/08/2018

Published: 01/10/2018

Article Online First time: 152 days

Article editing time: 186 days


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