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Table 1 Classification by pattern of bone involvement

From: Imaging of skull vault tumors in adults

Pseudolesions

Lytic

Sclerotic/mixed

Transdiploic

Arachnoid granulation

Meningo-/encephalocele

Dilated vascular canals

Internal hyperostosis

Biparietal thinning

Enlarged parietal foramina

Sinus pericrani

Fibrous dysplasia

Epidermal inclusion cyst

Eosinophilic granuloma

Intraosseous hemangioma

Plasma-cell myeloma

Giant-cell tumor

Aneurysmal bone cyst

Meningioma*

Lymphoma*

Metastasis*

Osteoma

Osteosarcoma

Meningioma*

Lymphoma*

Metastasis*

Meningioma*

Hemangiopericytoma

Lymphoma*

Plasmacytoma*

Metastasis*

  1. *Metastasis, meninigioma, lymphoma, and plasmacytoma may be transdiploic, originating from the intracranial extraaxial soft-tissue, or intradiploic as primary bone lesions