Histopathological findings in Whipple's disease include all of the following, except:
Marked increase in the number of macrophages in the mucosa
Marked increase in the number of intraepethelial lymphocytes
Dilatation of Lymphatics in the mucosa
Lipid deposition in the mucosa
The intraepithelial lymphocytes are usually, either decreased in number or normal. So marked increase in the number of intraepithelial lymphocytes is the single best answer of choice by exclusion. Ref: Davidson's Principles and Practice of Medicine, 19th Edition, Pages 795-96