Benign and malignant cartilage tumors of bone and joint: their anatomic and theoretical basis with an emphasis on radiology, pathology and clinical biology. II. Juxtacortical cartilage tumors

Abstract

In part I, we reviewed the varied clinical presentations, pathogenesis, histologic findings, radiologic findings, and treatment of intramedullary cartilaginous lesions of bone. In this section, we will evaluate our cases and consultations of juxtacortical cartilaginous tumors. Radiographic differential diagnosis includes the numerous juxtacortical lesions particularly osteochondroma, parosteal chondroma, Trevor's disease, trauma (fracture and periostitis ossificans), and the low- and high-grade surface osteosarcomas. By emphasizing pathogenesis in conjunction with radiographic and histologic findings, pitfalls in diagnosis and subsequent treatment can be avoided in such cases.

Benign bone tumors and tumor-like lesions: value of cross-sectional imaging

“…Painfulness in the absence of fracture or mechanical irritation of adjacent structures or growth of an osteochondroma in the skeletal mature patient should alert to the possibility of malignant transformation [1,4,24,26]. Malignant transformation is derived from the cartilaginous component of the lesion (cartilage cap) and is thought to occur in approximately 1% of patients with a solitary osteochondroma and 5-25% of patients with multiple lesions (hereditary multiple exostoses) [1,4,24,26]. The resulting malignant tumor most commonly is a low-grade chondrosarcoma [24,26].…”

Thigh Pain in an 18-year-old Man

“…3 of cases [3]. Typically, periosteal reaction is minimal in periosteal chondroma; however, in our patient the periosteal new bone formation was thickly formed.…”

“…Because this was a painful, diaphyseal cortical-based lesion in an 18-year old man, periosteal chondroma was thought to be the most likely diagnosis [3]. Periosteal chondromas (juxtacortical chondromas) are rare, benign, cartilage-forming tumors.…”

Multifocal Periosteal Chondromas in the Ring Finger of an Adolescent Boy: Case Report

“…1,2 Periosteal chondromas often develop in the periosteal region at the metaphysis of the proximal humerus, femur, or finger phalanx in the second and third decades of life. [3][4][5] Takada et al detected 51 cases located in the finger phalanx out of 183 cases of periosteal chondroma.…”