Ominous Sign of Pneumatosis Intestinalis With Portal Venous Gas.

The presence of gas and free air in the extraluminal space of the intestines is known as pneumatosis intestinalis (PI). There are many different causes of this finding, including gastrointestinal, pulmonary, autoimmune, and many more. It is often difficult to differentiate the etiology and clinical importance of the radiographic evidence on pneumatosis intestinalis due to the unclear pathophysiology causing the disease. To complicate things further, the ominous sign of portal venous gas poses the question of whether surgical intervention is needed. We report two cases both with clinical and radiographic evidence of secondary pneumatosis intestinalis with an associated sinister finding of portal venous gas. The cases differ by urgent surgical intervention versus observation before surgery. In this case series, we emphasize the importance of recognizing the radiographic finding and stress the need for further research to standardize a plan of care, including indications for surgery. We encourage more cases like this to be reported to aid in diagnosing and treating this condition early on with the aim of improving the mortality associated with it.

Neuromyelitis Optica Spectrum Disorder: A Rare Cause of Spinal Cord and Optic Nerve Involvement.

Neuromyelitis optica spectrum disorder (NMOSD) is defined as a rare central nervous system, demyelinating, autoimmune disorder with autoantibodies against aquaporin-4. Commonly affecting females, NMOSD is known to also be a relapsing disease and can increase in severity during each episode. Diagnostic criteria include ruling out multiple sclerosis, spinal magnetic resonance imaging, and autoantibody detection. While management focuses on relapse treatment and prevention, high-dose steroids and plasma exchange have proven to be useful options. We present a case of a young female presenting with NMOSD relapse appropriately managed with plasma exchange.