Abstract :
Introduction: Osteochondromas are thought of as benign bone tumours, however they are actually developmental defects.
A long tubular bone that may be sessile or pedunculated has an outgrowth with cartilage covering it that is visible on radiographs. Additionally, the cartilage cap can harden. Any changes in radiological appearance are strongly indicative of chondrosarcoma, particularly those with ill-defined border development and thickening of the cartilage cap >15 mm.
Case Report: An insidious onset, slow progression, and lack of aggravating or alleviating variables were all complaints made by a 21-year-old male patient with swelling and pain across the right foot dorsal side for the past two years Upon examination, there was a firm, irregularly shaped, 5 to 6 cm swelling over the dorsal part of the right foot that was attached to the underlying bone.
Discussion: The majority of benign bone tumours, or 36% to 41% of all benign bone tumours, are conventional osteochondromas. Osteochondromas are uncommon in the foot and ankle regions, but if a big osteochondroma develops in these areas and is interfering with function, it should be removed. The amount of the lesion, any soft tissue involvement, and the depth and placement of the cartilage cap can all be seen on an MRI, which is helpful in the workup of an osteochondroma that is symptomatic or worrisome.
Discussion According to histology, the osteochondroma's cap is made of hyaline cartilage, with well-differentiated cells abundantly spaced out by cartilage matrix and oriented in columns that mimic the epiphyseal growth plate in the deepest levels of the cap.
Keyword :
Cartilage cap, Metatarsal head, Osteochondroma