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Orthopedics & Traumatology

Enostosis (Bone Island)

ICD-10 Code
M89.9

Common, benign focus of mature compact bone within the cancellous bone (a "tumor mimic" requiring no treatment).

Clinical Presentation & Protocol

Patient Usually Complains Of

Patient presents for evaluation of an incidental radiographic finding. The lesion is asymptomatic, discovered during imaging for unrelated musculoskeletal complaints. No history of localized pain, swelling, constitutional symptoms, or recent trauma in the affected region.

Clinical Examination Findings

Physical examination of the affected site reveals no palpable masses, tenderness, erythema, or warmth. Range of motion is within normal limits, and neurovascular status is intact. No functional impairment noted.

Treatment Protocol

No therapeutic intervention is indicated. The lesion is a benign enostosis (bone island). Clinical observation is sufficient; no follow-up imaging is required unless the patient develops new, localized, and persistent symptoms.

Detailed clinical guide coming soon.