Ebrahimpour Adel, Sadighi Mehrdad, Jafari Kafiabadi Meisam, Chehrassan Mohammadreza, Biglari Farsad
Department of Orthopedic Surgery, Shohada Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Physiotherapy Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Arch Bone Jt Surg. 2021 May;9(3):355-360. doi: 10.22038/abjs.2020.48137.2381.
Pigmented villonodular synovitis (PVNS) is a locally destructive benign lesion usually affecting the synovial tissue of weight-bearing joints. Herein we reported a 20-year-old male patient who was an army staff with a foot lesion which was painful in army boots. In the beginning, the lesion was considered a ganglion cyst. Further investigations revealed cortical erosion of cuboid bone on the radiograph. Pigmented villonodular synovitis was considered as a probable diagnosis after observation of low signal lesion around the calcaneocuboid joint on both T1 and T2 images of Magnetic Resonance Imaging. The treatment included excision of the lesion and synovectomy of the calcaneocuboid joint. The diagnosis was confirmed with histological studies. At more than one year follow-up, the patient was completely asymptomatic, and there was no evidence of recurrence. This study aimed to raise the awareness of clinicians about the diagnosis of this rare soft tissue neoplasm which might be misdiagnosed as a ganglion or synovial cysts in the hindfoot zone.
色素沉着绒毛结节性滑膜炎（PVNS）是一种局部破坏性良性病变，通常累及负重关节的滑膜组织。在此，我们报告一名20岁男性患者，他是一名军队工作人员，足部有病变，穿军靴时疼痛。起初，该病变被认为是腱鞘囊肿。进一步检查发现X线片显示骰骨皮质侵蚀。在磁共振成像的T1和T2图像上观察到跟骰关节周围的低信号病变后，色素沉着绒毛结节性滑膜炎被视为可能的诊断。治疗包括病变切除和跟骰关节滑膜切除术。组织学研究证实了诊断。在一年多的随访中，患者完全无症状，且无复发迹象。本研究旨在提高临床医生对这种罕见软组织肿瘤诊断的认识，该肿瘤在后足区域可能被误诊为腱鞘囊肿或滑膜囊肿。
