Which of the following statements about cavernous hemangioma is false?
ANot associated with VHL disease
BLess infiltrative than capillary hemangioma
CIntravascular thrombosis and dystrophic calcification are seen commonly
DUndergo spontaneous regression
Which of the following findings on colonoscopy is most consistent with angiodysplasia?
AInflamed diverticula
BDilated submucosal veins
CMucosal ulcers
DMass lesion
A 50-year-old HIV-positive patient presents with a painless, purple lesion on the skin. What is the most likely diagnosis?
AKaposi's sarcoma
BSquamous cell carcinoma
CMalignant melanoma
DBasal cell carcinoma
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