PMC8186998_01
(A and B) Fungating mass of approximately 15x15 cm noted at the left heel appreciated via lateral view (A) and inferior view (B).
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The wound bed was extremely hypergranular (Figure 1A and B), with sparsely fibrotic and necrotic areas.
(A and B) Foot X-ray in anteroposterior view (A) and oblique view (B) showing lesion in the lateral posterior calcaneus with surrounding large irregular soft tissue radiopacity/mass. There was no bone resorption that may suggest osteomyelitis.
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Left foot x-ray revealed a lytic lesion in the lateral posterior calcaneus (Figure 2).
Photomicrograph of histopathologic specimen at low power reveals infiltration of tumor into deep dermis (A) and at high power (B) shows infiltrating islands of well-differentiated neoplasm and squamous epithelium within dermis.
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Final pathology report identified it as invasive keratinizing squamous cell carcinoma, well-differentiated (Figure 3).