case_images: PMC7245653_01
case_images: Peripheral smear with hypersegmented neutrophils.
case_images: CRIHEM2020-8697493.001.jpg
case_images: PMC7245653_01_CRIHEM2020-8697493.001.jpg
case_images: fig1
case_images: PNH was a diagnosis on the differential. Peripheral smear was notable for hypersegmented neutrophils, macrocytic normochromic anemia, thrombocytopenia, and lacked schistocytes (Figure 1).
case_images: Gastric biopsy showing lymphoplasmacytic cells in the lamina propria of gastric tissue. No neutrophilic activity is identified. Atrophy was noted without dysplastic alterations.
case_images: CRIHEM2020-8697493.002.jpg
case_images: PMC7245653_01_CRIHEM2020-8697493.002.jpg
case_images: fig2
case_images: Biopsies were taken of the mucosa that suggested chronic atrophic gastritis with histologic and immunohistochemical findings consistent with pernicious anemia without evidence of Helicobacter pylori (Figure 2).