Thirst, Urinary Frequency, Deep Painless Ulcer (415/1700)

A 60yo man with a 4y hx of thirst, urinary freq and weight loss presents with a deep painless
ulcer on the heel. What is the most appropriate inv?
a. Ateriography
b. Venography
c. Blood sugar
d. Biopsy for malignant melanoma
e. Biopsy for pyoderma






































Answer: C