Presentation
Scalp swelling in the left parietal region. No pain or fever.
Patient Data
Age: 20 years
Gender: Male
From the case:
Eosinophilic granuloma - skull
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A solitary punched out lytic lesion without sclerotic rim in the left parietal region.
Case Discussion
Eosinophilic granuloma is common among the young. A punched out lytic lesion without sclerotic rim is a typical appearance, as is a hole within a hole appearance which is due to bevelled edge in the skull defect, with the inner table defect is larger than the relatively small outer table defect.
Differentials to consider, particularly in older individuals are solitary plasmacytoma and metastasis.
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