Median arcuate ligament syndrome: Difference between revisions
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[[File:Gray391.png| | {{SI}} | ||
{{Infobox medical condition | |||
| name = Median arcuate ligament syndrome | |||
| image = [[File:Gray391.png|left|thumb|Diagram of the celiac artery and its branches]] | |||
| caption = Diagram of the celiac artery and its branches | |||
| synonyms = Celiac artery compression syndrome, Dunbar syndrome | |||
| specialty = [[Vascular surgery]] | |||
| symptoms = [[Abdominal pain]], [[weight loss]], [[nausea]], [[vomiting]] | |||
| onset = Typically young adults | |||
| duration = Chronic | |||
| causes = Compression of the [[celiac artery]] by the [[median arcuate ligament]] | |||
| risks = [[Anatomical variation]] | |||
| diagnosis = [[CT angiography]], [[Doppler ultrasound]], [[MRI]] | |||
| differential = [[Chronic mesenteric ischemia]], [[peptic ulcer disease]], [[gastroesophageal reflux disease]] | |||
| treatment = Surgical decompression, [[celiac artery]] revascularization | |||
| prognosis = Generally good with treatment | |||
| frequency = Rare | |||
}} | |||
'''Median Arcuate Ligament Syndrome''' ('''MALS'''), also known as '''Celiac Artery Compression Syndrome''', is a rare condition characterized by chronic abdominal pain due to the compression of the [[celiac artery]] by the [[median arcuate ligament]]. This ligament is a fibrous band that connects the diaphragmatic crura on either side of the [[aortic hiatus]]. | '''Median Arcuate Ligament Syndrome''' ('''MALS'''), also known as '''Celiac Artery Compression Syndrome''', is a rare condition characterized by chronic abdominal pain due to the compression of the [[celiac artery]] by the [[median arcuate ligament]]. This ligament is a fibrous band that connects the diaphragmatic crura on either side of the [[aortic hiatus]]. | ||
== Anatomy and Pathophysiology == | == Anatomy and Pathophysiology == | ||
The [[median arcuate ligament]] is part of the [[diaphragm]], a major muscle involved in [[respiration]]. In MALS, the ligament compresses the [[celiac artery]], which supplies blood to the upper abdominal organs, including the [[stomach]], [[liver]], [[spleen]], and [[pancreas]]. This compression can lead to reduced blood flow (ischemia) and cause symptoms. | The [[median arcuate ligament]] is part of the [[diaphragm]], a major muscle involved in [[respiration]]. In MALS, the ligament compresses the [[celiac artery]], which supplies blood to the upper abdominal organs, including the [[stomach]], [[liver]], [[spleen]], and [[pancreas]]. This compression can lead to reduced blood flow (ischemia) and cause symptoms. | ||
== Symptoms == | == Symptoms == | ||
The primary symptom of MALS is chronic abdominal pain, which is often described as a dull, aching pain in the upper abdomen. Other symptoms may include: | The primary symptom of MALS is chronic abdominal pain, which is often described as a dull, aching pain in the upper abdomen. Other symptoms may include: | ||
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* [[Diarrhea]] | * [[Diarrhea]] | ||
* [[Bloating]] | * [[Bloating]] | ||
== Diagnosis == | == Diagnosis == | ||
Diagnosing MALS can be challenging due to its nonspecific symptoms. Diagnostic methods include: | Diagnosing MALS can be challenging due to its nonspecific symptoms. Diagnostic methods include: | ||
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* [[Computed tomography angiography]] (CTA) or [[magnetic resonance angiography]] (MRA) to visualize the compression. | * [[Computed tomography angiography]] (CTA) or [[magnetic resonance angiography]] (MRA) to visualize the compression. | ||
* [[Celiac plexus block]] to determine if pain relief occurs, indicating the celiac artery as the pain source. | * [[Celiac plexus block]] to determine if pain relief occurs, indicating the celiac artery as the pain source. | ||
== Treatment == | == Treatment == | ||
Treatment options for MALS include: | Treatment options for MALS include: | ||
* | * '''Surgical intervention''': The most common treatment is the surgical release of the median arcuate ligament to relieve the compression on the celiac artery. | ||
* | * '''Endovascular procedures''': In some cases, angioplasty or stenting of the celiac artery may be performed. | ||
== Prognosis == | == Prognosis == | ||
The prognosis for patients with MALS varies. Many patients experience significant pain relief following surgical intervention, although some may continue to have symptoms. | The prognosis for patients with MALS varies. Many patients experience significant pain relief following surgical intervention, although some may continue to have symptoms. | ||
== See also == | |||
== | |||
* [[Celiac artery]] | * [[Celiac artery]] | ||
* [[Diaphragm (anatomy)]] | * [[Diaphragm (anatomy)]] | ||
* [[Ischemia]] | * [[Ischemia]] | ||
* [[Abdominal pain]] | * [[Abdominal pain]] | ||
<br> | |||
[[Category:Vascular diseases]] | [[Category:Vascular diseases]] | ||
[[Category:Abdominal pain]] | [[Category:Abdominal pain]] | ||
[[Category:Rare diseases]] | [[Category:Rare diseases]] | ||
{{Medicine-stub}} | {{Medicine-stub}} | ||
Latest revision as of 00:01, 9 April 2025
Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD medical weight loss NYC and sleep center NYC
| Median arcuate ligament syndrome | |
|---|---|
 | |
| Synonyms | Celiac artery compression syndrome, Dunbar syndrome |
| Pronounce | N/A |
| Specialty | Vascular surgery |
| Symptoms | Abdominal pain, weight loss, nausea, vomiting |
| Complications | N/A |
| Onset | Typically young adults |
| Duration | Chronic |
| Types | N/A |
| Causes | Compression of the celiac artery by the median arcuate ligament |
| Risks | Anatomical variation |
| Diagnosis | CT angiography, Doppler ultrasound, MRI |
| Differential diagnosis | Chronic mesenteric ischemia, peptic ulcer disease, gastroesophageal reflux disease |
| Prevention | N/A |
| Treatment | Surgical decompression, celiac artery revascularization |
| Medication | N/A |
| Prognosis | Generally good with treatment |
| Frequency | Rare |
| Deaths | N/A |
Median Arcuate Ligament Syndrome (MALS), also known as Celiac Artery Compression Syndrome, is a rare condition characterized by chronic abdominal pain due to the compression of the celiac artery by the median arcuate ligament. This ligament is a fibrous band that connects the diaphragmatic crura on either side of the aortic hiatus.
Anatomy and Pathophysiology[edit]
The median arcuate ligament is part of the diaphragm, a major muscle involved in respiration. In MALS, the ligament compresses the celiac artery, which supplies blood to the upper abdominal organs, including the stomach, liver, spleen, and pancreas. This compression can lead to reduced blood flow (ischemia) and cause symptoms.
Symptoms[edit]
The primary symptom of MALS is chronic abdominal pain, which is often described as a dull, aching pain in the upper abdomen. Other symptoms may include:
Diagnosis[edit]
Diagnosing MALS can be challenging due to its nonspecific symptoms. Diagnostic methods include:
- Doppler ultrasound to assess blood flow in the celiac artery.
- Computed tomography angiography (CTA) or magnetic resonance angiography (MRA) to visualize the compression.
- Celiac plexus block to determine if pain relief occurs, indicating the celiac artery as the pain source.
Treatment[edit]
Treatment options for MALS include:
- Surgical intervention: The most common treatment is the surgical release of the median arcuate ligament to relieve the compression on the celiac artery.
- Endovascular procedures: In some cases, angioplasty or stenting of the celiac artery may be performed.
Prognosis[edit]
The prognosis for patients with MALS varies. Many patients experience significant pain relief following surgical intervention, although some may continue to have symptoms.
See also[edit]
