Epidermoid Cyst vs. Eosinophilic Granuloma
Epidermoid Cyst vs. Eosinophilic Granuloma Left picture: Here, a partially intraosseous parietal epidermoid cyst is present.
Right picture: The operative diagnosis is an eosinophilic granuloma, in which the pain on palpation is probably due to a tension of the periosteum. Operative findings in two visible and palpable parietal soft tissue masses.
Left picture: Circular skull defect which has sharp limits, and in which a tense and spherical tumor is lying, extending beyond the bone in the direction of the galea.
Right picture: A smooth, irregular and yellow mass without a capsule is recognizable, lying directly under the periosteum and elevating it. The osseous defect is irregular as far as the border and the shape are concerned.
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