A case of malignant fibrous histiocytoma of the neck

Abstract

We report a case of an 81-year-old male who developed a malignant fibrous histiocytoma (MFH) in his neck. The patient presented with common cold-like symptoms During the subseguent examination, a tumor was found in his neck. A 50×80 mm, mobile, small tumor was palpable on the right side of the neck. Based on cervical ultrasound, CT scan, and MRI scan results, a well-defined tumor in the area surrounding the right sternocleidomastoid muscle, the infrahyoid muscles, and the fascia colli superficialis was found. Fine-needle aspiration biopsy cytology was classV. The tumor was not continuous with the thyroid gland. Nevertheless, a soft tissue tumor, such as anaplastic thyroid cancer or liposarcoma, was suspected. Thus, to establish a definitive diagnosis a tumorectomy was performed. On histopathology, MFH was diagnosed. On immunohistochemistry, the tumor was positive for vimentin and CD34. Extended resection and postoperative chemotherapy were recommended due to the high-grade of the MFH. However, the patient and his family refused this approach and expressed a strong desire for conservative follow-up. The patient has been free of clinically evident recurrence for 6 years after surgery.