Fig. 4From: Anal fistula metastasis of rectal cancer after neoadjuvant therapy: a case reportGross and pathological findings of rectal cancer. The rectal lesion measures 10 × 10 mm and is classified as a type 2 tumor. Histopathologic evaluation showed an adenocarcinoma (tub1), ypT2, INFb, Ly0, V0, Pn0, pPM0, pDM0, ypN0 (arrow). The therapeutic effect grade was grade 2 [11]. There are no cancer remnants in the scar after anal fistula surgery (oval)Back to article page