Nora's tumour is an uncommon benign tumour, involving mostly tubular bones of hands and feet, and characterized by a proliferation of chondroid, bony and fibrous tissues. Main differential diagnoses are osteochondroma, chondrosarcoma, and osteosarcoma. The authors report a case involving the left foot. The diagnosis was suspected by imaging characteristic features and was confirmed by histological examination. Treatment was surgical, with complete excision. There are no clinical or radiological signs of recurrence on further review one year postoperatively.
Download full-text PDF |
Source |
---|
J Orthop Case Rep
November 2024
Department of Pathology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India.
Introduction: Benign bone tumors like osteochondroma are common during skeletal maturity occurring usually at the ends of long bones, such as the distal femur, proximal humerus, and proximal tibia. The tumor can occur in sessile or pedunculated forms. Mass lesions occurring around the ankle can lead to chronic pain, pathological fractures, progressive erosion, and scalloping of adjacent bone.
View Article and Find Full Text PDFA patient with a benign bizarre parosteal osteochondromatous proliferation (BPOP) located in the anterior knee was treated with resection in preparation for total knee arthroplasty (TKA). The BPOP reoccurred and was treated with re-resection at the time of TKA. The BPOP reoccurred a second time and underwent malignant transformation to a fungating high-grade pleomorphic sarcoma with metastatic lesions.
View Article and Find Full Text PDFBMC Musculoskelet Disord
July 2024
Department of Orthopedics, The Second Xiangya Hospital, Central South University, No 139 Renmin Road, Changsha, Hunan, 410011, China.
Background: Bizarre parosteal osteochondromatous proliferation (BPOP) is a rare benign bone tumor, it is also called "Nora's lesion". The lesion is characterized by heterotopic ossification of the normal bone cortex or parosteal bone. The etiology of BPOP is unclear and may be related to trauma.
View Article and Find Full Text PDFJBJS Case Connect
July 2024
Masih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Case: Bizarre parosteal osteocartilaginous proliferation (BPOP) is rare, especially in the foot. To the best of our knowledge, multifocal BPOP has yet to be reported. We are reporting a case of a 40-year-old woman who presented with 4 bumps over her midfoot and toes.
View Article and Find Full Text PDFJ Int Med Res
June 2024
Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
Bizarre parosteal osteochondromatous proliferation (BPOP), also termed Nora lesion, is a rare, benign tumor most often located in the hands and feet. We herein present the second reported case of BPOP affecting the spine, an uncommon location. One year after surgical excision, the patient was pain-free and showed no evidence of recurrence.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!