A Case of Enteritis Cystica Profunda Accompanied by a Lipoma in the Duodenal Bulb / 대한내과학회지

Enteritis cystica profunda (ECP) is a very rare hyperplastic benign lesion of the small intestine. Histologically, it is characterized by mucin-filled cystic spaces frequently lined by benign epithelium within the submucosa and muscularis propria. ECP occurs much less frequently than gastritis cystica profunda (GCP) or colitis cystica profunda (CCP). It is most often seen in adults with Crohn's disease, Peutz-Jeghers syndrome, hamartomatous polyp, or congenital anomalies. We encountered a case of ECP (90 x 15 mm) accompanied by an elongated lipoma in the duodenal bulb, in the absence of any other disease. An endoscopic polypectomy proved sufficient for diagnosing and treating the ECP. To our knowledge, this is the first reported case of ECP accompanied by a lipoma in the duodenal bulb in the absence of any other intestinal disease.

A Case of Metformin-Induced Acute Kidney Injury without Lactic Acidosis: A Case Report / 대한구급학회지

Metformin is an oral antidiabetic drug in the biguanide class, which is used for type 2 diabetes. The side effects of metformin are mostly limited to digestive tract symptoms, such as diarrhea, flatulence and abdominal discomfort. The most serious potential adverse effect of metformin is lactic acidosis. A 51-year-old man was admitted due to hypoglycemia as a result of an overdose of antidiabetic drugs. He took massive dose of metformin. Conservative treatment failed for metabolic acidosis without lactic acidosis accompanied by acute kidney injury. Hemodialysis was executed to correct the high anion gap metabolic acidosis and acute kidney injury, and the patient recovered fully from metabolic acidosis. This case illustrates that the presence of clinical conditions, such as metformin-induced acute kidney injury and metabolic acidosis, can be developed without lactic acidosis. Prompt recognition of metabolic acidosis and early intervention with hemodialysis can result in a successful clinical outcome.

Amyotrophic Lateral Sclerosis Identified by Failure to Wean From Mechanical Ventilation

In most cases of amyotrophic lateral sclerosis (ALS), respiratory muscle involvement is a late complication. Only 2.7% of ALS patients presenting with their first clinical symptoms in the extremities also experience respiratory symptoms. We report a case of an 81-year-old man with ALS, diagnosed by an unexplained failure to wean from mechanical ventilation. The patient was presented with acute respiratory failure, tachypnea and respiratory acidosis. Computed tomography of the chest showed large amounts of sputum in the trachea. An endotracheal tube was inserted, and the patient was placed on volume-controlled ventilation. However, in the course of recovery, he could not be weaned from mechanical ventilation, despite the absence of cardiopulmonary impairment. Having considered other causes of respiratory failure, wediagnosed ALS after a physical and neurologic examination and electrodiagnostic testing.

A Case of Transient Mid-Ventricular Ballooning Syndrome after Cardiac Arrest / 대한내과학회지

Stress-induced cardiomyopathy is characterized by transient wall-motion abnormalities involving the left ventricular apex. Emotional or physical stress might play a key role in this reversible form of cardiomyopathy, but the etiology remains unclear. Clinical features of stress-induced cardiomyopathyare similar to those of acute coronary syndrome, but there is no significant stenosis in the coronary arteries. Recently, transient mid-ventricular ballooning syndrome, a variant form of stress-induced cardiomyopathy in which only the mid-ventricle is affected, has been reported. Here, we report a case of a 42-year-old female patient who developed transient mid-ventricular ballooning syndrome after cardiac arrest during autologous fat transplantation.