MENINGIOMA

• Meningioma are benign slow growing, encapsulated tumours arising from arachanoid meningothelial cells.
• Seen in adults (females) & attached to dura.
• MC primary brain tumour- meningioma > glial tumour
• They are MC intracranial, extracranial dural based neoplasm.

Clinical features-

• Motor deficit – 90% & sensory deficit- 60%

Histology-

a)     Syncytial – whorled cluster of cells

b)    Fibroblastic- collagen between cells

c)     Transitional  – syncytial + fibroblastic

d)    Psammomatous- psammoma bodies present

e)     Secretory- pseudopsammoma border

Clinical features-

• Malignant meningioma are highly aggressive tumours.

Investigations-

Nearly all meningiomas enhance intensely following contrast administration. Abnormal vascular markings Enlarged foramen spinosum on the side of lesion Dural tail Calcification in the tumor

Invasion of bone cause localized bony hyperostosis/mixed osteoblastic and osteolytic response less commonly. It may show ‘sun ray spicules’ and local bone expansion with pneumatization so called ‘blistering’. Signs of increased intracranial tension

 

Treatment-

• Surgery- TOC

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