All of the following are characteristic of lymphangiomas EXCEPT
Commonest tumor in HIV is kaposi sarcoma. 2nd commonest tumor is lymphoma, not lymphangioma. Lymphangioma-. It is an uncommon tumour presenting with slowly progressive proptosis in a young person. It often enlarges because of spontaneous bleed within the vascular spaces, leading to formation of 'chocolate cysts' which may regress spontaneously.