A.A. Aniskin1, S.A. Peschanskaya1, A.S. Ivanova1, Z.Z. Mamedli1, A.S. Gorbunova1, D.V. Kuzmichev1, A.I. Kapkova2
1Blokhin National Medical Research Center of Oncology, Moscow
2Moscow Scientific Research Oncology Institute named after P.A. Gerzen — branch of NMITS of Radiology, Moscow
Aniskin A.A. — PhD, Researcher, Department of Abdominal Oncology No. 3
Blokhin National Research Medical Center of Oncology
23 Kashirskoe shosse, 115478 Moscow, Russian Federation, e-mail: Docaniskin@gmail.com, ORCID ID: 0000-0002-6123-3903
Abstract. Desmoid fibromatosis (DF) is a rare neoplasm of connective tissue that develops in muscular-aponeurotic tissues. The disease symptoms may vary depending on the tumor localization. The most common genetic disorder in DF is a mutation in the APC gene (adenomatous polyposis coli gene).
We present a rare clinical case of abdominal desmoid fibromatosis in a patient with colorectal cancer.
When new formation of abdominal cavity is detected in a patient with cancer, it is recommended to conduct a molecular genetic analysis using the appropriate genetic panels (in particular, a study of mutations in the APC and CTNNB1 genes), with mandatory comparison of the results with clinical and morphological data.
Abdominal desmoid fibromatosis should be included in the preoperative differential diagnosis when unspecified abdominal neoplasms are detected, despite the rarity of this disease. This approach facilitates timely diagnosis, adequate treatment selection, and prevention of overly radical or insufficient interventions.
This clinical case was written taking into account the CARE criteria. Informed consent from the patient was obtained.
Key words: desmoid tumor, desmoid fibromatosis, APC gene, colorectal cancer