A huge left buttock mass in an old female

Area of Science:

• Oncology
• Radiology
• Pathology

Background:

• Myxofibrosarcoma (MFS), also known as myxoid malignant fibrous histiocytoma, is a rare soft tissue sarcoma.
• It predominantly affects elderly individuals, typically beyond the sixth decade of life.

Purpose of the Study:

• To report a case of MFS in a 64-year-old patient.
• To highlight the diagnostic role of Magnetic Resonance Imaging (MRI) in MFS.

Main Methods:

• A case study of a 64-year-old patient with a left buttock tumor.
• Radiological examination using MRI for initial diagnosis.
• Confirmation of diagnosis through surgical biopsy at an oncology center.

Main Results:

• MRI indicated Myxofibrosarcoma (MFS).
• The tumor presented as a large mass on the left buttock with no systemic involvement.
• Histological examination confirmed the MFS diagnosis.

Conclusions:

• MRI is the gold standard for characterizing soft tissue tumors like MFS.
• Specific MRI findings, including myxoid signal, triple signal, and tail sign, aid in positive MFS diagnosis.
• Cross-sectional imaging, particularly MRI, is vital for precise tumor assessment, complementing histological analysis.