ROS1-positive Inflammatory Myofibroblastic Tumor of the Small Bowel Causing Obstruction: A Case Report

2020-04-18 02:54:34

Category: Abdominal Imaging, Region: Other, Plane: Other

Figure 4: Histological findings 23-year-old female with IMT and small bowel obstruction. TECHNIQUE: Formalin-fixed-paraffin-embedded Hematoxilin and Eosin (H&E) stained sections. FINDINGS: A: (H&E, 40x) The tumor shows bland spindle-cells (blue arrows) with admixed lymphocytes (red arrow). B: (H&E, 20x) The tumor may show delicate vasculature (blue arrow) and myxoid stroma. C: (H&E, 1x) The tumor show irregular infiltration of the muscular layer (arrow heads). Note the intact mucosal layer (bottom left). D: (H&E, 20x) The tumor shows fascicular architecture. Notice the background chronic inflammatory infiltrate (blue arrow).