The patient proceeded to theatre and resection.
Histopathology
MICROSCOPIC DESCRIPTION: The sections show a nidus of thin-walled vascular channels. These have a back-to-back arrangement with thin walls composed entirely of collagen. No elastic tissue or smooth muscle components are seen. Collections of haemosiderin-filled macrophages are noted at the edge of the lesion. The features are of a cavernous haemangioma. No evidence of tumour is seen.
DIAGNOSIS: Cavernous haemangioma.