https://www.selleckchem.com/products/acetohydroxamic-acid.html Sarcoidosis is a common multisystem chronic inflammatory disease of an unidentified inciting etiology. The most common initial manifestations of this disease involve the pulmonary system, and involvement of the gastrointestinal tract is rare. Sarcoidosis of the gastrointestinal tract occurs in an oral-anal gradient, with the esophagus and stomach being the most commonly involved sites, while colonic involvement remains extremely rare. . We present a case of a 24-year-old African American man who was evaluated for persistent abdominal pain, chronic diarrhea, and weight loss. Workup for infectious etiologies and celiac disease was unrevealing. An inflammatory mass in the hepatic flexure was found during colonoscopy, and a computed tomography (CT) scan of the abdomen was significant for circumferential thickening of the cecum and ascending colon, along with nodular thickening of the peritoneum without enhancement. Malignancy and inflammatory bowel disease were the initial differentials. A peritoneal biopsy ws.Introduction. Gastrointestinal stromal tumors (GISTs) are mesenchymal tumors and constitute the largest group of nonepithelial digestive neoplasms. However, they do not represent more than 1% of primary digestive tumors. They commonly metastasize to the liver and peritoneum, but brain metastases are extremely rare. Clinical Case. A 76-year-old woman with a diagnosis of esophageal GIST with liver and lung metastases for 13 years, medicated with imatinib, is presented. She was brought to the emergency department after falling and due to changes in behavior and vertigo with 24 hours of evolution. On physical examination, she presented changes in behavior, dysarthria, dysmetria on the right, gait imbalance, and no motor or sensory deficits. On brain computed tomography and posteriorly on magnetic resonance, 2 lesions were observed, left frontal and right cerebellar, compatible with metastatic lesions. Afte