Myxofibrosarcoma of the scalp with difficult preoperative diagnosis:A case report and review of the literature  

作　　者：Xiao-Ting Ke Xiong-Feng Yu Ji-Yang Liu Fang Huang Mei-Gui Chen Qing-Quan Lai 

机构地区：[1]Department of CT/MRI,The Second Affiliated Hospital of Fujian Medical University,Quanzhou 362000,Fujian Province,China

出　　处：《World Journal of Clinical Cases》2020年第11期2350-2358,共9页世界临床病例杂志

摘　　要：BACKGROUND A myxofibrosarcoma(MFS)is a malignant fibroblastic tumor that tends to occur in the lower and upper extremities.The reported incidence of head and neck MFSs is extremely rare.We report a 46-year-old male with“a neoplasm in the scalp”who was hospitalized and diagnosed with an MFS(highly malignant with massive necrotic lesions)based on histologic and immunohistochemistry evaluations.The magnetic resonance imaging manifestations did not demonstrate the“tail sign”mentioned in several studies,which resulted in a great challenge to establish an imaging diagnosis.The treatment plan is closely associated with the anatomic location and histologic grade,and more importantly,aggressive surgery and adjuvant radiotherapy may be helpful.Hence,we report the case and share some valuable information about the disease.CASE SUMMARY A 46-year-old male with“a neoplasm in the scalp for 6 mo”was hospitalized.Initially,the tumor was about the size of a soybean,without algesia or ulceration.The patient ignored the growth,did not seek treatment,and thus,did not receive treatment.Recently,the tumor increased to the size of an egg;there was no bleeding or algesia.His family history was unremarkable.No abnormalities were found upon laboratory testing,including routine hematologic,biochemistry,and tumor markers.Computed tomography showed an ovoid mass(6.25 cm×3.29 cm×3.09 cm in size)in the left frontal scalp with low density intermingled with equidense strips in adjacent areas of the scalp.Magnetic resonance imaging revealed a lesion with an irregular surface and an approximate size of 3.55 cm×6.34 cm in the left frontal region,with clear boundaries and visible separation.Adjacent areas of the skull were damaged and the dura mater was involved.Contrast enhancement showed an uneven enhancement pattern.Surgery was performed and postoperative adjuvant radiotherapy was administered to avoid recurrence or metastasis.The post-operative pathologic diagnosis confirmed an MFS.A repeat computed tomography scan showed no local

关 键 词：Malignant fibrous histiocytoma MYXOFIBROSARCOMA SCALP Magnetic resonance imaging TREATMENT Case report 

分 类 号：R739.5[医药卫生—肿瘤]