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• Vol.62 No.6
• CLINICA NEUROL, 62: 464−468, 2022
• Vol.62 No.6 contents

Case Report

A case of mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) complicated by chronic intestinal pseudo-obstruction

Rei Miyanaga, M.D.¹⁾²⁾, Mariko Tanaka, M.D.¹⁾, Takayuki Nonaka, M.D.¹⁾, Hirohiko Shizukawa, M.D.¹⁾ and Shun Shimohama, M.D., Ph.D.²⁾

¹⁾ Department of Neurology, Sapporo Kosei General Hospital
²⁾ Department of Neurology, School of Medicine, Sapporo Medical University

A 42-year-old woman presented at our hospital with acute paraphasia and word finding difficulty. She was not paralyzed or ataxic. Mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) was diagnosed based on brain MRI finding of edematous lesions in bilateral temporal lobe cortexes that did not match the vascular territory, elevated lactate and pyruvate levels in blood and cerebrospinal fluid, and the presence of a mtDNA 3243A>G mutation. From six months before her visit, she had persistent anorexia, bloating, nausea and vomiting, and weight loss to 25 kg. We diagnosed her condition as chronic intestinal pseudo-obstruction (CIPO) associated with MELAS, because a gastroenterologist had previously diagnosed her with megacolon associated with colonic dysfunction. Usually, CIPO is often associated with the chronic phase of MELAS. However, since CIPO complication from the early stage of the disease is occasionally encountered, it is necessary to include mitochondrial disease in differential diagnosis of CIPO of unknown cause.
Full Text of this Article in Japanese PDF (1519K)

(CLINICA NEUROL, 62: 464−468, 2022)
key words: MELAS, CIPO

(Received: 3-Sep-21)