ABSTRACT
Mucormycosis is an invasive fungal infection. The prevalence is low for this disease, and the most common site of its occurrence in the gastrointestinal system is the stomach. The clinical signs and symptoms of gastric mucormycosis are vague such as pain in the abdomen, nausea, vomiting, haematemesis, etc. In the current study, a 42-year-old male patient came with complaints of pain in the abdomen associated with vomiting and mild-grade fever based on vague clinical presentation and imaging like upper gastrointestinal endoscopy and computer tomography angiography of the abdomen. Our preoperative diagnosis was gastrocolic fistula secondary to acute on chronic pancreatitis, which was managed by emergency exploratory laparotomy, resection, and anastomosis. Histopathological examination was successful in confirming the diagnosis of mucormycosis. Through this case report, we intend to draw surgeons' and physicians' attention to gastrointestinal mucormycosis, an emerging cause of gastric necrosis in young patients in the post-coronavirus disease era, and that physicians need to be more aware of the consequent high mortality and morbidity. Early diagnosis followed by aggressive debridement, antifungal therapy, and managing the underlying disease is the most efficient way to reduce mortality associated with the disease.