A 47 year-old man, who previously underwent epilepsy surgery in which silver clips had been used for hemostasis, presented with left extremity weakness. Investigation revealed a mass lesion of right frontal lobe near the place of previous surgery and where the silver clips resided. Intra-operative findings revealed a huge cerebral tumor with poor blood supply and circumscribed by adjacent gliosis, with the silver clips located within the tumor parenchyma. Histologically, the tumor was composed of spindle-shaped cells with fusiform and tapered nuclei. The cells were positive for a-SMA, but negative for vimentin, pancytokeratin, EMA and CD34. Ultrastructurally, tumor cells had abundant dilated rER and thin myofilaments with local dense bodies, confirming the histological diagnosis of Low-grade Myofibroblastic Sarcoma (LGM). LGM is a rare tumor with cerebral involvement being exceptionally unusual. Only one similar case has ever been described in the English-language literature. That our case was related to previously placed silver clips in epilepsy surgery further adds to the novelty.
基金:
National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [30801177]
Wan Feng,Zhang Ping,Zhu Yuanli,et al.47-YEAR-OLD MAN WITH FRONTAL LOBE TUMOR[J].BRAIN PATHOLOGY.2011,21(2):229-232.doi:10.1111/j.1750-3639.2010.00472.x.
APA:
Wan, Feng,Zhang, Ping,Zhu, Yuanli,Wu, Kelan,Gua, Yang...&Le, Ting.(2011).47-YEAR-OLD MAN WITH FRONTAL LOBE TUMOR.BRAIN PATHOLOGY,21,(2)
MLA:
Wan, Feng,et al."47-YEAR-OLD MAN WITH FRONTAL LOBE TUMOR".BRAIN PATHOLOGY 21..2(2011):229-232