本文对1例足趾纤维骨性假瘤进行病理形态及免疫组化染色研究。方法患者，男性，13岁。1995年无意中发现右足第四趾增粗，畸形，无活动障碍及其它不适。4年来肿块逐渐增大，行走时不适。患者无局部外伤史或感染史。体检见右脚第四趾肿大，增粮，畸形，表面不红，无压痛，末梢感 In this paper, the morphological and immunohistochemical staining of a peduncle fibular pseudotumor in 1 case was studied. Methods Patients, male, 13 years old. In 1995, he discovered that the fourth toe of the right foot was thickened, deformed, had no movement disorder, and other discomfort. In the past 4 years, the masses have gradually increased, causing discomfort when walking. The patient had no history of local trauma or history of infection. Physical examination shows that the right foot is swollen on the fourth toe, increases grain, deformity, the surface is not red, no tenderness, distal sense