Ischemic colitis induced by a platelet-raising capsule: A case report

Table 1 Summary of laboratory results of patient

Date	Liver function kidney function blood lipid blood glucose electrolyte	Blood routine	Coagulation function four +D dimer	PPD test	Antinuclear antibody
2021-06-29	Total bilirubin 22.3 μmol/L, direct bilirubin 7 μmol/L, high-density lipoprotein cholesterol 1.99 mmol/L, low-density lipoprotein cholesterol 3.57 mmol/L	Lymphocyte percentage 18.5%, neutrophil percentage 76.4%, platelet count 68 × 109/L	D-dimer 0.81mg/L
2021-07-03				Negative	Negative
2021-07-06		Lymphocyte percentage 11%, neutrophil percentage 83.5%, absolute lymphocyte value 0.8 × 109/L, platelet count 23 × 109/L
2021-07-08		Platelet count was 12 × 109/L
2021-07-12		Absolute monocyte value 0.8 × 109/L, red blood cells 4.22 × 1012/L, hemoglobin 126 g/L, the mean hemoglobin concentration was 312 g/L, and the platelet count was 199 × 109/L
2021-07-14		Platelet count 230 × 109/L
2021-07-20		Platelet count was 81 × 109/L
2021-07-23		Platelet count was 82 × 109/L

PPD: Pure protein derivative.

Table 2 Summary of imaging examination results of patient

Date	Whole abdomen CT	Mesenteric CTA	Gastroscopy	Colonoscopy	Pathology
2018	Thickening and edema of the colon wall, and possible inflammatory changes, to be furthered examined if necessary, in combination with clinical evaluation; Calcification of right lobe of liver; Small amount of fluid in abdominal cavity	No obvious abnormalitiesin mesenteric arteries and veins; Colon wall changes, consistent with ischemic enteritis, to be interpreted within clinical context; Small amount of ascites?	Chronic superficial gastritis	Multiple colonic ulcers pending investigation	(Descending colon) mucosal chronic inflammation with multiple ulcers; (ileocecal region) mucosal chronic inflammation with ulcers; (transverse colon) mucosal chronic inflammation with ulcers. Added: Acid-fast staining (-)
2021-06-28			Chronic non-atrophic gastritis with erosion, duodenal bulbitis	Multiple colonic ulcers	Chronic inflammation of mucosa with superficial ulceration and eosinophils infiltrating the lamina propria; (in the proximal ileocecal part of the ascending colon) mucosal chronic inflammation accompanied by acute inflammation, with scattered eosinophils infiltrating the lamina propria; (65 cm from anus) chronic mucosal inflammation accompanied by acute inflammation and superficial ulceration, with scattered eosinophils infiltrating the lamina propria; chronic inflammation of mucosa (30 cm from anus)
2021-07-19				Colonic ulcer; Endoscopic forceps removal of colonic polyps	Tubular adenoma (50 cm from anal margin); Acute and chronic inflammation of mucosa with erosion (proximal ileocecal part of ascending colon)
2022-08-01				No obvious abnormality

CTA: Computed tomography angiography; CT: Computed tomography.