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Surgical Case Reports
Fig. 4 | Surgical Case Reports

Fig. 4

From: A case report of anal fistula-associated mucinous adenocarcinoma developing 3 years after treatment of perianal abscess

Fig. 4

Histopathologic photographs, hematoxylin and eosin (H&E) staining. a Lumen of the fistula (*) is expanded with a massive mucinous component. Carcinoma cells invade the dermis and epidermis around the distal site of the fistula (×40). b Mucin-containing poorly differentiated adenocarcinoma is present (×100). c Highly dysplastic epithelial cells lined the lumen of the anal fistula (×100)

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