Gastrointestinal stromal tumor of the appendix: case report and review of the literature Jason Back, MD, Joshua Jeanty, Steve Landas, MD Human Pathology: Case Reports Volume 2, Issue 4, Pages 94-98 (December 2015) DOI: 10.1016/j.ehpc.2015.04.001 Copyright © 2015 The Authors Terms and Conditions
Fig. 1 Low power showing a subserosal nodule at the tip of the appendix. H&E, 2×. Human Pathology: Case Reports 2015 2, 94-98DOI: (10.1016/j.ehpc.2015.04.001) Copyright © 2015 The Authors Terms and Conditions
Fig. 2 Higher power showing bland spindle cells of the tumor. H&E, 20×. Human Pathology: Case Reports 2015 2, 94-98DOI: (10.1016/j.ehpc.2015.04.001) Copyright © 2015 The Authors Terms and Conditions
Fig. 3 Low power showing CD117 positivity. Red chromogen, 2×. Human Pathology: Case Reports 2015 2, 94-98DOI: (10.1016/j.ehpc.2015.04.001) Copyright © 2015 The Authors Terms and Conditions
Fig. 4 Low power showing nestin expression by tumor cells. Brown chromogen, 2×. Human Pathology: Case Reports 2015 2, 94-98DOI: (10.1016/j.ehpc.2015.04.001) Copyright © 2015 The Authors Terms and Conditions
Fig. 5 DOG-1 is positive within the spindle tumor cells while the entrapped normal tissue is negative, 20×. Human Pathology: Case Reports 2015 2, 94-98DOI: (10.1016/j.ehpc.2015.04.001) Copyright © 2015 The Authors Terms and Conditions
Fig. 6 The spindle cells of the tumor as well as the normal endothelial cells are positive for CD34. Human Pathology: Case Reports 2015 2, 94-98DOI: (10.1016/j.ehpc.2015.04.001) Copyright © 2015 The Authors Terms and Conditions