case_images: PMC5496108_01
case_images: Abdominal computed tomography showing diffuse circumferential thickening of the colonic wall. The arrows refer to circumferential thickening of the transverse colon.
case_images: CRIGM2017-3491087.001.jpg
case_images: PMC5496108_01_CRIGM2017-3491087.001.jpg
case_images: fig1
case_images: CT of the chest, abdomen, and pelvis demonstrated diffuse circumferential colonic wall thickening with prominent mesenteric lymph nodes (Figure 1).
case_images: Colonoscopy with ulcerations in the cecum and ascending colon.
case_images: CRIGM2017-3491087.002.jpg
case_images: PMC5496108_01_CRIGM2017-3491087.002.jpg
case_images: fig2
case_images: Severe inflammation and ulcerations in the right colon and cecum were noted on colonoscopy (Figure 2).
case_images: Colonic ulcer biopsy demonstrating ischemic morphology with hyalinization of the lamina propria and atrophic crypts. Small cystic forms are evident. The arrows refer to toxoplasmosis cyst present within the colonic ulcer biopsy.
case_images: CRIGM2017-3491087.003.jpg
case_images: PMC5496108_01_CRIGM2017-3491087.003.jpg
case_images: fig3
case_images: Histologic examination revealed markedly active gastritis and colitis with ulceration and ischemic changes (Figure 3). Many free tachyzoites and encysted forms were identified in the lamina propria as well as the cytoplasm of epithelial, endothelial, and smooth muscle cells (Figures 3, 4, and 5).
case_images: Gastric biopsy specimen showing large cystic forms present in the glandular epithelium and stroma within a background of eosinophils. The arrows refer to toxoplasmosis cyst present within the gastric biopsy.
case_images: CRIGM2017-3491087.004.jpg
case_images: PMC5496108_01_CRIGM2017-3491087.004.jpg
case_images: fig4
case_images: Many free tachyzoites and encysted forms were identified in the lamina propria as well as the cytoplasm of epithelial, endothelial, and smooth muscle cells (Figures 3, 4, and 5).
case_images: Pathologic specimen with confirmation of T. gondii by immunohistochemistry. Cystic forms are present alongside dispersed tachyzoites. The arrows refer to toxoplasmosis cyst highlighted by immunohistochemistry.
case_images: CRIGM2017-3491087.005.jpg
case_images: PMC5496108_01_CRIGM2017-3491087.005.jpg
case_images: fig5
case_images: Many free tachyzoites and encysted forms were identified in the lamina propria as well as the cytoplasm of epithelial, endothelial, and smooth muscle cells (Figures 3, 4, and 5). Immunohistochemistry (polyclonal rabbit anti-Toxoplasma, 1 : 200; Dako Corporation, Carpinteria, Calif) confirmed the diagnosis of toxoplasmosis (Figure 5).