Schwannoma‣What is schwannoma?Also known as neurilemmomaBenign, encapsulated nerve sheath tumors composed of schwann cells‣Clinical features?Tinel sign positive!Check distal Nerve integrity‣What is the histology for schwannoma?Immunostaining positive for S100Biopsy showing "verocay bodies" which are pathognomonic = 2 rows of aligned nuclei in palisading formationFrom the term palisade fencing - look like a fence on histology‣Any malignant potential of schwannoma?Extremely rare‣Management of schwannoma?Non operative if asymptomaticSurgical = marginal excisionNerve function may be preserved by careful dissectionRisk of sensory deficitsRecurrence is rare.
