There is still more to learn about the causes of Chilaiditi's syndrome, risk factors, the distinctions between incidental findings and symptomatic presentations, and the information provided by anatomical imaging. The structural and functional foundations of this uncommon disease will be discussed.
What is Chilaiditi’s Syndrome?
Chilaiditis syndrome develops when a loop of bowel, typically the colon, becomes trapped between the liver and the diaphragm, causing gastrointestinal or respiratory symptoms. Variations or abnormalities in the colon's ligamentous support, diaphragmatic anatomy, or hepatic size can all contribute to the illness. From a physiological perspective, the presentation may be exacerbated by conditions such as persistent constipation, elevated intra-abdominal pressure, or decreased diaphragmatic tone.1
The anatomy of the diaphragm, liver and colon
A musculotendinous structure that divides the abdominal and thoracic chambers is called the diaphragm. The falciform, coronary, and triangular ligaments hold the liver in place, which is mainly located in the right upper quadrant. The colon, particularly the hepatic flexure, is in close proximity to the liver. The following anatomical traits predispose to Chilaiditi's syndrome:
- A tiny shrunken liver, such as that caused by cirrhosis
- Colon’s lax or absent suspensory ligaments
- Abnormally long or mobile colon2,3,4
Structured anomalies contributing to Chilaidaiti’s syndrome
The most common anatomical variations implicated are:
- Redundant colon: The transverse colon can be extremely lengthy, causing it to shift into aberrant places
- Without suspensory ligaments, standard peritoneal fixation fails, resulting in hypermobility
- Diaphragmatic elevation: A diaphragm that rises due to phrenic nerve dysfunction or liver shrinkage can create a vacuum for bowel migration
- Hepatic atrophy: Usually seen in patients who have had cirrhosis or hepatic resection, this condition causes the liver and diaphragm to separate more5,6,7
Psychological risk factors
In addition to structure, the following physiological states raise the likelihood of this condition:
- The colon is forced upward by increased intra-abdominal pressure caused by chronic constipation
- Chronic lung disease: Conditions such as COPD lower diaphragmatic tone while raising the diaphragm
- Obesity changes the location of organs and intra-abdominal dynamics
- Neuromuscular problems, such as Parkinson's disease, affect gastrointestinal motility and diaphragmatic control8
Imaging, diagnosis and symptoms
During chest or abdominal X-rays, Chilaiditi's sign is frequently discovered by chance. Among the essential diagnostic attributes are:
- Air beneath the diaphragm has haustral marks that are visible to distinguish it from open air
- A subphrenic abscess or intestinal perforation are two other serious disorders that can be distinguished from this one with CT imaging, which is conclusive
Though a number of people are asymptomatic for this syndrome, symptomatic cases include:
- Abdominal pains
- Nausea
- Difficulty in breathing
- Rare complications such as bowel obstruction, ischemia, volvulus9,10,11
Treatment options
Management depends on severity:
- Asymptomatic cases → interventions are not needed, as long as it’s being monitored
- Symptomatic cases → Bowel rest, laxatives or enemas, unnecessary surgery not needed
- Surgical correction → Reserved for difficult cases or complications such as volvulus or ischemia12
FAQs
Can Chilaiditi’s syndrome be life-threatening?
It is extremely rare, as most cases are benign, although some cases could be life-threatening, as complications such as bowel ischaemia or volvulus can occur.13
How can the syndrome be differentiated from a perforated bowel?
It can be distinguished by medical imaging techniques, such as CT imaging, which can display colon haustral marks for the syndrome but open air in the belly for a perforation.14
Summary
Chilaiditi's syndrome is an uncommon but significant anatomical disorder brought on by the colon's improper placement between the liver and diaphragm. It results from both physiological causes, such as chronic respiratory disorders or constipation, and anatomical alterations, such as liver atrophy or ligament laxity. It is easier to make an accurate diagnosis and prevent needless surgical procedures when these underlying issues are understood.
Reference
- Kumar A, Mehta D. Chilaiditi Syndrome. StatPearls, Treasure Island (FL): StatPearls Publishing; 2025.
- Nair N, Takieddine Z, Tariq H. Colonic Interposition between the Liver and Diaphragm: “The Chilaiditi Sign.” Can J Gastroenterol Hepatol 2016;2016:2174704. https://doi.org/10.1155/2016/2174704.
- Deshmukh SN, Maske AN, Deshpande AP, Shende SP. Transverse Colon Volvulus with Chilaiditis Syndrome. Indian J Surg 2010;72:347–9. https://doi.org/10.1007/s12262-010-0130-4.
- Ben Ismail I, Zenaidi H, Rebii S, Yahmadi A, Zoghlami A. Chilaiditi’s sign: A rare differential diagnosis of pneumoperitoneum. Clin Case Rep 2020;8:3102–4. https://doi.org/10.1002/ccr3.3346.
- Kang D, Pan AS, Lopez MA, Buicko JL, Lopez-Viego M. Acute abdominal pain secondary to chilaiditi syndrome. Case Rep Surg 2013;2013:756590. https://doi.org/10.1155/2013/756590.
- Orangio GR, Fazio VW, Winkelman E, McGonagle BA. The Chilaiditi syndrome and associated volvulus of the transverse colon. An indication for surgical therapy. Dis Colon Rectum 1986;29:653–6. https://doi.org/10.1007/BF02560330.
- Saber AA, Boros MJ. Chilaiditi’s syndrome: what should every surgeon know? Am Surg 2005;71:261–3. https://doi.org/10.1177/000313480507100318.
- Moaven O, Hodin RA. Chilaiditi syndrome: a rare entity with important differential diagnoses. Gastroenterol Hepatol (N Y) 2012;8:276–8.
- Hivert B, Der Sahakian G, Claessens YE, Randone B, Afanou G, Allo JC. Chilaiditi’s sign or Chilaiditi’s syndrome in the emergency department. Emerg Med J 2008;25:87. https://doi.org/10.1136/emj.2007.046417.
- Tola GG, Tesso BA, Kebede ML, Bezabih YD. A case report of Chilaiditi syndrome presenting with a small bowel obstruction in an elderly Ethiopian man: A potential case for a misdiagnosis. Int J Surg Case Rep 2024;125:110532. https://doi.org/10.1016/j.ijscr.2024.110532.
- Cawich SO, Spence R, Mohammed F, Gardner MT, Sinanan A, Naraynsingh V. The liver and Chilaiditi’s syndrome: Significance of hepatic surface grooves. SAGE Open Med Case Rep 2017;5:2050313X17744979. https://doi.org/10.1177/2050313X17744979.
- WENG W-H, LIU D-R, FENG C-C, QUE R-S. Colonic interposition between the liver and left diaphragm - management of Chilaiditi syndrome: A case report and literature review. Oncol Lett 2014;7:1657–60. https://doi.org/10.3892/ol.2014.1903.
- Ben Ismail I, Zenaidi H, Rebii S, Yahmadi A, Zoghlami A. Chilaiditi’s sign: A rare differential diagnosis of pneumoperitoneum. Clinical Case Reports 2020;8:3101–3. https://doi.org/10.1002/ccr3.3346.
- Sofii I, Parminto ZA, Anwar SL. Differentiating Chilaiditi’s Syndrome with hollow viscus perforation: A case report. Int J Surg Case Rep 2021;78:314–6. https://doi.org/10.1016/j.ijscr.2020.12.029.

