【摘要】 目的分析总结纤维骨性假瘤的影像学表现特点,提高对该病的影像诊断水平。方法回顾性分析5例纤维骨性假瘤的临床影像学资料,包括x线平片检查5例,CT检查4例,MRI检查2例,总结其临床影像学表现特点。结果 5例纤维骨性假瘤均发生于掌指骨旁软组织,其中3例发生于拇指,术前临床x线平片检查均误诊,男1例,女4例,年龄15~36岁。3例X线平片和/或CT表现为指骨旁密度均匀或不均匀的骨性肿块,边缘清楚,邻近骨膜新生骨形成,其中1例MRI示骨性肿块信号类似与肌肉信号;1例X线平片和CT表现为骨皮质侵蚀破坏、骨膜新生骨和软组织肿胀,未见肿块;1例X线平片和CT表现为骨膜新生骨和软组织肿胀,无骨质破坏,MRI示类似于肌肉信号的软组织肿块形成。结论纤维骨性假瘤好发于掌指骨旁软组织,常表现为骨旁边界清楚的骨性肿块,伴有邻近骨膜新生骨,骨质破坏少见,应注意避免误诊为骨旁骨肉瘤、骨软骨瘤或骨髓炎。更多还原

【Abstract】 Objective To assess the imaging appearance of fibro-osseous pseudotumor of the hand.Methods The radiographs(5),CT(4) and MRI(2) of 5 patients(1 man,4 women,age range:15-36 years) with fibro-osseous pseudotumors were retrospectively analyzed.Results All 5 tumors involved the soft tissues adjacent to the metacarpals and phalanges with 3 of which in the thumb.Radiographs and CT on 3 patients showed homogeneous or heterogeneous soft tissue masses adjacent to the phalanges with well-defined margins and adjacent periosteal new bone formation.MRI of one patient demonstrated a bony mass isointense relative to muscle.Radiograph and CT of one patient showed cortical destruction,periosteal new bone,and soft tissue swelling without mass.On another patient,the radiograph and CT demonstrated periosteal new bone,soft-tissue swelling and no bone destruction whereas MRI showed soft-tissue mass isointense relative to muscle.Conclusion Fibro-osseous pseudotumors often involve the metacarpals and phalanges as well-marginated bony masses with neighboring periosteal new bone and rarely bone destruction.These imaging features can help to distinguish them from parosteal osteosarcoma,osteochondroma and osteomyelitis.更多还原