Copper Deficiency Myeloneuropathy Following Roux-en-Y Gastric Bypass in a 72-Year-Old Female.

Following the implementation of gastric bypass for weight management, copper deficiency has become an increasingly recognized cause of myeloneuropathy. This condition typically presents with primarily sensory deficits leading to ataxia, similar to subacute combined degeneration from Vitamin B12 deficiency. We describe the case of a 72-year-old female patient who initially presented for insidious loss of sensation in her hands and feet, along with intermittent urinary retention. MRI findings included T2 hyperintensities of the dorsal cervicothoracic spinal cord. After identification of low serum copper, intravenous supplementation was started, with immediate improvement in symptoms by the time of discharge. Clinicians should recognize copper deficiency as a potential cause of progressive sensory neuropathy, particularly in patients with a history of gastric bypass.