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Published on: May 17, 2018
Abdominal pain and vomiting as first sign of mitochondrial disease
S Van Biervliet1, P Verloo, S Vande Veldel
1Pediatric Gastroenterology, Ghent University hospital, Ghent, Belgium. stephanie.vanbiervliet@ugent.be
Abstract:
We describe a patient in whom abdominal pain and vomiting were the presenting symptoms of Mitochondrial Myopathy Encephalopathy, Lactic Acidosis with Stroke-like episodes syndrome (MELAS). Mitochondrial disorders usually present with neurological symptoms or with myopathic features at any age. Although many patients develop visceral symptoms at a certain moment during the course of the disease, only in a minority of patients these symptoms are the unique presenting ones. The proband was initially diagnosed as having gastro-oesophageal reflux and it was only after detailed clinical history that an underlying metabolic defect was suspected and the molecular defect identified.
Insights
Mitochondrial Myopathy Encephalopathy, Lactic Acidosis with Stroke-like episodes (MELAS) can initially present with gastrointestinal issues like abdominal pain and vomiting. This case highlights the importance of considering metabolic disorders even when symptoms seem unrelated to typical neurological or muscular presentations.
Area of Science:
- Neurology
- Genetics
- Gastroenterology
Background:
- Mitochondrial disorders, such as MELAS, often manifest with neurological or myopathic symptoms.
- Visceral symptoms are common in mitochondrial diseases but rarely the primary presenting feature.
Observation:
- A patient presented with abdominal pain and vomiting, initially misdiagnosed as gastro-oesophageal reflux.
- Detailed clinical history revealed the possibility of an underlying metabolic defect.
Findings:
- The patient was diagnosed with Mitochondrial Myopathy Encephalopathy, Lactic Acidosis with Stroke-like episodes (MELAS) syndrome.
- The molecular defect underlying the condition was identified.
Implications:
- This case underscores the need to consider rare metabolic disorders in patients with atypical gastrointestinal presentations.
- Early suspicion and investigation of MELAS can lead to timely diagnosis and management.
- Recognizing diverse clinical presentations of MELAS is crucial for accurate diagnosis.
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