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Hepatomegaly

From Wikipedia, the free encyclopedia

Hepatomegaly
Computerized tomography of affected person with hepatomegaly
SpecialtyHepatology Edit this on Wikidata
SymptomsWeight loss, lethargy[1]
CausesLiver abscess (pyogenic abscess), Malaria[1]
Diagnostic methodAbdominal ultrasonography[2]
TreatmentPrednisone and azathioprine[3]

Hepatomegaly is enlargement of the liver.[4] It is a non-specific medical sign, having many causes, which can broadly be broken down into infection, hepatic tumours, and metabolic disorder. Often, hepatomegaly presents as an abdominal mass. Depending on the cause, it may sometimes present along with jaundice.[1]

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Transcription

Signs and symptoms

The patient may experience many symptoms, including weight loss, poor appetite, and lethargy; jaundice and bruising may also be present.[1]

Causes

Leptospirosis

Among the causes of hepatomegaly are the following:

Infective

Neoplastic

Biliary

Metabolic

Drugs (including alcohol)

Congenital

Others

Mechanism

The mechanism of hepatomegaly consists of vascular swelling, inflammation (infectious in origin), and deposition of (1) non-hepatic cells or (2) increased cell contents (such as that due to iron in hemochromatosis or hemosiderosis and fat in fatty liver disease).[15]

Diagnosis

Abdominal ultrasonography of the liver, as a sagittal plane through the midclavicular line, with some standard measurements[2]
Right lobe of the liver at the midclavicular line at ages 0 to 7[16]

Suspicion of hepatomegaly indicates a thorough medical history and physical examination, wherein the latter typically includes an increased liver span. [citation needed]

On abdominal ultrasonography, the liver can be measured by the maximum dimension on a sagittal plane view through the midclavicular line, which is normally up to 18 cm in adults.[2] It is also possible to measure the cranio-caudal dimension, which is normally up to 15 cm in adults.[2] This can be measured together with the ventro-dorsal dimension (or depth), which is normally up to 13 cm.[2] Also, the caudate lobe is enlarged in many diseases. In the axial plane, the caudate lobe should normally have a cross-section of less than 0.55 of the rest of the liver.[2]

Other ultrasound studies have suggested hepatomegaly as being defined as a longitudinal axis > 15.5 cm at the hepatic midline, or > 16.0 cm at the midclavicular line.[17][18]

Workup

Blood tests should be done, especially liver-function tests, which give a good impression of the patient's broad metabolic picture.[medical citation needed]

A complete blood test can help distinguish intrinsic liver disease from extrahepatic bile-duct obstruction.[19] An ultrasound of the liver can reliably detect a dilated biliary-duct system,[20] it can also detect the characteristics of a cirrhotic liver.[21]

Computerized tomography (CT) can give accurate anatomical information for a complete diagnosis.[22]

Treatment

Prednisone

Treatment of hepatomegaly varies with the cause, so accurate diagnosis is the first concern. In auto-immune liver disease, prednisone and azathioprine may be used for treatment.[3]

In lymphoma the treatment options include single-agent (or multi-agent) chemotherapy and regional radiotherapy, and surgery is an option in specific situations. Meningococcal group C conjugate vaccine is used in some cases.[23]

In primary biliary cirrhosis, ursodeoxycholic acid helps the bloodstream remove bile, which may increase survival.[24]

See also

References

  1. ^ a b c d e f g h i j k l m n o p q r s "Hepatomegaly. Read about Hepatomegaly (enlarged liver) | Patient". Patient. Archived from the original on 2022-02-01. Retrieved 2016-02-27.
  2. ^ a b c d e f Christoph F. Dietrich, Carla Serra, Maciej Jedrzejczyk (2010-07-28). "Ultrasound of the liver - EFSUMB – European Course Book" (PDF). European federation of societies for ultrasound in medicine and biology (EFSUMB). Archived from the original (PDF) on 2017-08-12. Retrieved 2017-12-21.{{cite web}}: CS1 maint: multiple names: authors list (link)
  3. ^ a b "Cirrhosis: Practice Essentials, Overview, Etiology". Medscape. 22 July 2021. Retrieved 16 May 2024.
  4. ^ a b c d e f g h i "Hepatomegaly: MedlinePlus Medical Encyclopedia". www.nlm.nih.gov. Archived from the original on 2016-07-05. Retrieved 2016-02-27.
  5. ^ Lang, Florian (2009-03-19). Encyclopedia of Molecular Mechanisms of Disease: With 213 Tables. Springer Science & Business Media. p. 824. ISBN 9783540671367. Archived from the original on 2023-01-12. Retrieved 2016-03-11.
  6. ^ Prevention, CDC - Centers for Disease Control and. "CDC - Echinococcosis - Resources for Health Professionals". www.cdc.gov. Archived from the original on 2016-03-11. Retrieved 2016-03-11.
  7. ^ "Leptospirosis (Weil's Disease) | Doctor | Patient". Patient. Archived from the original on 2016-03-11. Retrieved 2016-03-11.
  8. ^ Banfalvi, Gaspar (2013-10-16). Homeostasis - Tumor - Metastasis. Springer Science & Business Media. p. 145. ISBN 9789400773356.
  9. ^ "Cholesteryl Ester Storage Disease - NORD (National Organization for Rare Disorders)". NORD (National Organization for Rare Disorders). Archived from the original on 2016-03-12. Retrieved 2016-03-11.
  10. ^ Sherigar, JM; Castro, J; Yin, YM; Guss, D; Mohanty, SR (27 February 2018). "Glycogenic hepatopathy: A narrative review". World Journal of Hepatology. 10 (2): 172–185. doi:10.4254/wjh.v10.i2.172. PMC 5838438. PMID 29527255.
  11. ^ "Hunter's Syndrome. MPS II information; symptoms | Patient". Patient. 20 August 2014. Archived from the original on 2016-03-12. Retrieved 2016-03-11.
  12. ^ "OMIM Entry - # 214100 - PEROXISOME BIOGENESIS DISORDER 1A (ZELLWEGER); PBD1A". www.omim.org. Archived from the original on 2015-02-14. Retrieved 2016-03-11.
  13. ^ "CPT I deficiency". Genetics Home Reference. 2016-03-07. Archived from the original on 2020-09-19. Retrieved 2016-03-11.
  14. ^ "Sarcoidosis | Doctor | Patient". Patient. Archived from the original on 2016-03-11. Retrieved 2016-03-11.
  15. ^ Dennis, Mark; Bowen, William Talbot; Cho, Lucy (2012-01-01). Mechanisms of Clinical Signs. Elsevier Australia. p. 469. ISBN 9780729540759. Archived from the original on 2023-01-12. Retrieved 2020-10-25.
  16. ^ Rocha, Silvia Maria Sucena da; Ferrer, Ana Paula Scoleze; Oliveira, Ilka Regina Souza de; Widman, Azzo; Chammas, Maria Cristina; Oliveira, Luiz Antonio Nunes de; Cerri, Giovanni Guido (2009). "Determinação do tamanho do fígado de crianças normais, entre 0 e 7 anos, por ultrassonografia". Radiologia Brasileira. 42 (1): 7–13. doi:10.1590/S0100-39842009000100004. ISSN 0100-3984.
  17. ^ Gosink, BB; Leymaster, CE (January 1981). "Ultrasonic determination of hepatomegaly". Journal of Clinical Ultrasound. 9 (1): 37–44. doi:10.1002/jcu.1870090110. PMID 6792230. S2CID 22827636.
  18. ^ Kratzer, W; Fritz, V; Mason, RA; Haenle, MM; Kaechele, V; Roemerstein Study, Group. (November 2003). "Factors affecting liver size: a sonographic survey of 2080 subjects". Journal of Ultrasound in Medicine. 22 (11): 1155–61. doi:10.7863/jum.2003.22.11.1155. PMID 14620885. S2CID 29904060.
  19. ^ Goldman, Lee; Schafer, Andrew I. (2015-04-21). Goldman-Cecil Medicine. Elsevier Health Sciences. p. 991. ISBN 9780323322850.
  20. ^ Meacock, L M; Sellars, M E; Sidhu, P S (2010-07-01). "Evaluation of gallbladder and biliary duct disease using microbubble contrast-enhanced ultrasound". The British Journal of Radiology. 83 (991): 615–627. doi:10.1259/bjr/60619911. ISSN 0007-1285. PMC 3473688. PMID 20603412.
  21. ^ Murray, Karen F.; Horslen, Simon (2013-12-11). Diseases of the Liver in Children: Evaluation and Management. Springer Science & Business Media. p. 199. ISBN 9781461490050.
  22. ^ Mirvis, Stuart E.; Soto, Jorge A.; Shanmuganathan, Kathirkamanathan; Yu, Joseph; Kubal, Wayne S. (2014-08-19). Problem Solving in Emergency Radiology. Elsevier Health Sciences. p. 442. ISBN 9781455758395.
  23. ^ "Non-Hodgkin's Lymphoma | Doctor | Patient". Patient. Archived from the original on 2018-02-08. Retrieved 2016-03-11.
  24. ^ "Primary biliary cirrhosis: MedlinePlus Medical Encyclopedia". www.nlm.nih.gov. Archived from the original on 2016-07-05. Retrieved 2016-03-12.

Further reading

External links

Scholia has a topic profile for Hepatomegaly.
This page was last edited on 16 May 2024, at 15:45
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