Primary localised deep cutaneous amyloidosis of the eyelid.

A 62-year-old lady presented with a six-month history of swelling of the left upper eyelid, resulting in mild mechanical ptosis. Clinical assessment suggested a provisional diagnosis of dermoid cyst. The lesion was excised and histology revealed nodular deposits of amorphous eosinophilic material surrounded by lymphocytes and plasma cells. Special histochemistry and immunoperoxidase stain results showed deposition of amyloid, non-AA type. The lesion recurred 6 months later.