Chondroma x ray

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Soujanya Thummathati, MBBS [2]

Overview

On x rays, enchondroma is characterized by lytic lesions that contain calcified chondroid matrix.^[1] On x rays, periosteal chondroma is characterized by matrix calcification with ring and arc pattern and saucerisation of the adjacent bony cortex with a sclerotic periosteal reaction.^[2]

X Ray

Enchondroma is usually asymptomatic and diagnosis is made during a routine physical examination or when a tumor leads to a fracture.
- The bones most often involved with this benign tumor are the miniature long bones of the hands and feet. It may, however, also involve other bones such as the femur, humerus, or tibia.^[1]
- On x rays, enchondroma is characterized by lytic lesions that contain calcified chondroid matrix (a "rings and arcs" pattern of calcification), except in the phalanges.
- They may be central, eccentric, expansile or nonexpansile.^[1]
Periosteal chondroma most often involve long tubular bones, mostly proximal humerus and distal femur (70%), although it may involve the short tubular bones of the hand like the phalanges (25%).^[2]
- On x rays, periosteal chondroma is characterized by matrix calcification with ring and arc pattern, as with all chondroid lesions, and saucerisation of the adjacent bony cortex with a sclerotic periosteal reaction and elevation of subperiosteum.^[2]

X-ray showing calcified enchondroma in left femur.^[3]
Enchondroma in 2nd phalanx of the little finger.^[4]
Left middle finger mass, frontal view x-ray: Multiple benign-appearing cartilaginous fragments, in keeping with enchondroma.^[5]
Left middle finger mass, frontal view x-ray: Multiple benign-appearing cartilaginous fragments, in keeping with enchondroma.^[5]
Anteroposterior radiograph of juxtacortical chondroma of left index finger reveals saucerization of the underlying cortex and a rim of sclerosis on the radial surface of the proximal phalanx.^[6]