PES Syndrome Presenting as Severe Hyponatremia in an Asymptomatic Septuagenarian.

Background: Hyponatremia is commonly seen in hospitalized patients. In euvolemic individuals, syndrome of inappropriate antidiuretic hormone secretion (SIADH) is a common differential. However, before establishing a diagnosis of SIADH, it is imperative to evaluate for hypocortisolism and hypothyroidism.

Rare anoxic brain injury sequela of delayed posthypoxic leukoencephalopathy due to recreational drug overdose with benzodiazepines.

A growth in recreational drug use will lead to a rise in delayed posthypoxic leukoencephalopathy cases. Physicians may inadvertently misdiagnose this rare condition as a primary psychiatric disorder by not maintaining a broad differential diagnosis.

Urosepsis Causing Gastric Ischemia: A Rare but Deadly Complication.

A 70-year-old male presented with abdominal pain and altered mental status. He was found to have sepsis secondary to a urinary tract infection with imaging showing hepatic portal venous gas and gastric pneumatosis. Esophagogastroduodenoscopy revealed gastric ischemia extending to the midbody with necrosis and biopsies confirming ischemia.