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Figure 1: Lymphoma manifesting as ulcer on the left arm and multiple plaques on the trunk and limbs. (a) 8 × 10 cm ulcerated tumor present at the inoculation site of vaccination. (b) Multiple red infiltrating plaques on the trunk and limb. (c) Biopsy of the necrotic tumor on the left arm reveals atypical lymphoid cells throughout the dermis extending into subcutaneous fat with an angiocentric pattern and extensive necrosis (hematoxylin and eosin (H and E), ×40). (d) Polymorphous lymphoid infiltrate (H and E, ×400). (e) Mixed infiltrates of large and small lymphocytes with irregular nuclei around dermal appendages and blood vessels in a biopsy of the plaque on the trunk (H and E, ×200)

Figure 1: Lymphoma manifesting as ulcer on the left arm and multiple plaques on the trunk and limbs. (a) 8 × 10 cm ulcerated tumor present at the inoculation site of vaccination. (b) Multiple red infiltrating plaques on the trunk and limb. (c) Biopsy of the necrotic tumor on the left arm reveals atypical lymphoid cells throughout the dermis extending into subcutaneous fat with an angiocentric pattern and extensive necrosis (hematoxylin and eosin (H and E), ×40). (d) Polymorphous lymphoid infiltrate (H and E, ×400). (e) Mixed infiltrates of large and small lymphocytes with irregular nuclei around dermal appendages and blood vessels in a biopsy of the plaque on the trunk (H and E, ×200)