https://www.selleckchem.com/products/blu-554.html A 69-year-old man with irritable bowel syndrome on a restricted diet presented with fatigue, myalgias, extensive bilateral lower-extremity petechiae and ecchymoses, transfusion-refractory anemia, and elevated inflammatory markers. A low serum vitamin C level led to the diagnosis of scurvy. This is the first reported case of vitamin C deficiency and clinical scurvy related to voluntary dietary restriction from irritable bowel syndrome in an adult patient.Acute esophageal necrosis is a rare cause of gastrointestinal bleeding. Endoscopically, it appears as a circumferential black-appearing mucosa affecting almost universally the mid and distal esophagus. Risk factors include low flow states, malnutrition, alcoholism, and the presence of multiple comorbidities. Prolonged exposure to gastric secretions and direct contact with corrosive agents also induce mucosal ischemia. Sodium polystyrene sulfonate use has been associated with severe gastrointestinal adverse events, including increased risk of small bowel and colonic necrosis and perforation. In susceptible individuals, sodium polystyrene sulfonate can also induce esophageal ischemia and necrosis, as illustrated in this case.Recurring, exudative, lymphocytic-predominant pleural effusions have not been previously reported in association with walled-off pancreatic necrosis. We present a case of chronic pancreatitis complicated by a large pancreatic fluid collection and recurrent pleural effusion. Endoscopic drainage of the walled-off pancreatic necrosis was the definitive treatment for both fluid collections.In recent years, e-cigarette use has become more popular. Until recently, it was considered safer than smoking. We report two cases of acute pulmonary illness associated with vaping, focusing on their histologic patterns.Prior reports have associated the unusual presentations of anti-glomerular basement membrane (anti-GBM) disease and pulmonary aspergillosis in an imm