Fig. 1
From: Establishment of a novel experimental model of infected anal fistula in rat
The inter-structure of the fistulous tract area after modeling. A–B. Representative images of histopathological examination by H&E staining according to the longitudinal section (A) and cross section of anal fistula (B). The red arrow and black arrow indicate the eosinophils and lymphocytes, respectively. Scale bar = 100 μm. C–D. T1 and T2-weighted morphological images of anal fistula based on BRUKER 9.4 T micro-MRI system for small animals. In details, the fistula (C) and orifices (D) were indicated by white arrow