The most common symptoms of an<unk>  are: * dull pain that escalates to severe at night OR slight pain, rising to become severe even at nighttime, affecting sleep quality * limping * muscle atrophy * bowing deformity * swelling * increased or decreased bone growth The most common symptom is pain that can be relieved with over the counter pain medication in the beginning. After the benign tumor develops further the pain can not be alleviated with medication and minor to severe swelling starts to occur. Although, in some cases the pain level remains the same for years, and regular NSAIDs intake keeps the pain at bay. The tumor is often found through x-ray imaging. Conventional radiographs reveal a well-demarcated lytic lesion (nidus) surrounded by a distinct zone of sclerosis that allow doctors to identify the tumor. Characterized by being less than 1.5 cm in diameter,<unk> s most frequently occur in young men (male:female ratio 3:1) and may occur in any bone of the body, most frequently around the knee but often also seen in the vertebrae, in the long bones and less commonly in the mandible or other craniofacial bones. Severe pain typically occurs at night, but can also be constant at any time of day. The chief complaint may only be of dull pain which is non radiating and persistent throughout 24 hours but increases significantly at night. Pain tends to be relieved with NSAIDs such as ibuprofen.
Osteoid osteoma
Osteochondroma
Bone cyst
Osteoma
Aneurysmal bone cyst
Osteochondrosis
Osteoblastoma
Osteofibrous dysplasia