Case report on Signet ring cell carcinoma in the distal stomach with a history of CABG and a known case of diabetes mellitus (DM) and hypertension (HTN)

A 70-year-old male patient who presented with complaints of nausea, vomiting, and black-colored stools. The patient is a known case of diabetes mellitus (DM), hypertension (HTN), and ischemic heart disease (IHD), with a history of coronary artery bypass grafting (CABG) performed in 2018. All investigations are done, including a digital PET scan, shows asymmetric hypermetabolic thickening in the distal stomach and pyloric region, shows of malignancy. A gastric biopsy confirmed moderately differentiated signet ring cell carcinoma. The patient underwent radical distal gastrectomy with gastrojejunostomy, under preoperative treatment.