Presentation
Painful soft tissue swelling on scalp.
Patient Data
Age: 2 years
Gender: Male
From the case:
Langerhans cell histiocytosis
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Well defined punched out osteolytic lesions with scalloped edges.
Case Discussion
Features on x-ray are consistent with Langerhans cell histiocytosis.
The skeletal system is the commonest site of involvement of Langerhans cell histiocytosis, and in 60-80% of cases is the only organ system involved.
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