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==Overview== | ==Overview== | ||
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Peliosis hepatis is often erroneously written "peliosis hepati''ti''s", despite its not being one of the [[hepatitis|hepatitides]]. The correct term arises from the Greek ''pelios'', i.e. discoloured by extravasated blood, livid<ref>{{cite web |url=http://www.perseus.tufts.edu/cgi-bin/ptext?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3D%2380479 |title=Henry George Liddell, Robert Scott, A Greek-English Lexicon |accessdate=2007-06-11 |format= |work=}}</ref>, and the Latinized Genitive case (hepatis<ref>{{cite web |url=http://www.perseus.tufts.edu/cgi-bin/ptext?doc=Perseus%3Atext%3A1999.04.0059%3Aentry%3D%2320439 |title=Charlton T. Lewis, Charles Short, A Latin Dictionary |accessdate=2007-07-02 |format= |work=}}</ref>) of the Greek ''hepar'', liver<ref>{{cite web |url=http://www.perseus.tufts.edu/cgi-bin/ptext?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3D%2347443 |title=Henry George Liddell, Robert Scott, A Greek-English Lexicon |accessdate=2007-07-02 |format= |work=}}</ref>. | Peliosis hepatis is often erroneously written "peliosis hepati''ti''s", despite its not being one of the [[hepatitis|hepatitides]]. The correct term arises from the Greek ''pelios'', i.e. discoloured by extravasated blood, livid<ref>{{cite web |url=http://www.perseus.tufts.edu/cgi-bin/ptext?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3D%2380479 |title=Henry George Liddell, Robert Scott, A Greek-English Lexicon |accessdate=2007-06-11 |format= |work=}}</ref>, and the Latinized Genitive case (hepatis<ref>{{cite web |url=http://www.perseus.tufts.edu/cgi-bin/ptext?doc=Perseus%3Atext%3A1999.04.0059%3Aentry%3D%2320439 |title=Charlton T. Lewis, Charles Short, A Latin Dictionary |accessdate=2007-07-02 |format= |work=}}</ref>) of the Greek ''hepar'', liver<ref>{{cite web |url=http://www.perseus.tufts.edu/cgi-bin/ptext?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3D%2347443 |title=Henry George Liddell, Robert Scott, A Greek-English Lexicon |accessdate=2007-07-02 |format= |work=}}</ref>. | ||
== Pathophysiology == | ==Historical Perspective== | ||
The [[pathogenesis]] of peliosis hepatis is unknown. There are several [[Hypothesis|hypotheses]], such as, it arise from [[sinusoidal]] epithelial damage<ref>{{cite journal |author=Gushiken FC |title=Peliosis hepatis after treatment with 2-chloro-3'-deoxyadenosine |journal=South. Med. J. |volume=93 |issue=6 |pages=625-6 |year=2000 |pmid=10881786}}</ref>, increased sinusoidal pressure due to obstruction in blood outflow from the liver, or hepatocellular [[necrosis]]<ref name="marvin"/>. | |||
==Classification== | |||
==Pathophysiology== | |||
The [[pathogenesis]] of peliosis hepatis is unknown. There are several [[Hypothesis|hypotheses]], such as, it arise from [[sinusoidal]] epithelial damage<ref>{{cite journal |author=Gushiken FC |title=Peliosis hepatis after treatment with 2-chloro-3'-deoxyadenosine |journal=South. Med. J. |volume=93 |issue=6 |pages=625-6 |year=2000 |pmid=10881786}}</ref>, increased sinusoidal pressure due to obstruction in blood outflow from the liver, or hepatocellular [[necrosis]]<ref name="marvin"/>. | |||
Two [[morphology (biology)|morphologic]] patterns of hepatic peliosis were described by Yanoff and Rawson <ref>{{cite journal |author=YANOFF M, RAWSON AJ |title=PELIOSIS HEPATIS. AN ANATOMIC STUDY WITH DEMONSTRATION OF TWO VARIETIES |journal=Archives of pathology |volume=77 |issue= |pages=159-65 |year=1964 |pmid=14088761}}</ref>. In the '''phlebectatic''' type, the blood-filled spaces are lined with [[endothelium]] and are associated with [[aneurysm|aneurism]]al dilatation of the central vein; in the '''parenchymal''' type, the spaces have no endothelial lining and they usually are associated with [[haemorrhagic]] [[parenchyma]]l [[necrosis]]. Some considers both pattern to be one process, initiated by focal [[necrosis]] of liver parenchyma observed in parenchymal type progressing into formation of [[fibrous]] wall and endothelial lining around [[haemorrhage]] of phebectatic type. [[Fibrosis]], [[cirrhosis]], regenerative nodules, and [[tumor|tumours]] may also be seen. | Two [[morphology (biology)|morphologic]] patterns of hepatic peliosis were described by Yanoff and Rawson <ref>{{cite journal |author=YANOFF M, RAWSON AJ |title=PELIOSIS HEPATIS. AN ANATOMIC STUDY WITH DEMONSTRATION OF TWO VARIETIES |journal=Archives of pathology |volume=77 |issue= |pages=159-65 |year=1964 |pmid=14088761}}</ref>. In the '''phlebectatic''' type, the blood-filled spaces are lined with [[endothelium]] and are associated with [[aneurysm|aneurism]]al dilatation of the central vein; in the '''parenchymal''' type, the spaces have no endothelial lining and they usually are associated with [[haemorrhagic]] [[parenchyma]]l [[necrosis]]. Some considers both pattern to be one process, initiated by focal [[necrosis]] of liver parenchyma observed in parenchymal type progressing into formation of [[fibrous]] wall and endothelial lining around [[haemorrhage]] of phebectatic type. [[Fibrosis]], [[cirrhosis]], regenerative nodules, and [[tumor|tumours]] may also be seen. | ||
==Causes== | |||
===Drug Causes=== | ===Drug Causes=== | ||
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* '''Renal transplants:''' It can be found in up to 20% patients, can be related to azathioprine or cyclosporine use and may be associated with increased risk of [[transplant rejection]]<ref>{{cite journal |author=Izumi S, Nishiuchi M, Kameda Y, Nagano S, Fukunishi T, Kohro T, Shinji Y |title=Laparoscopic study of peliosis hepatis and nodular transformation of the liver before and after renal transplantation: natural history and aetiology in follow-up cases |journal=J. Hepatol. |volume=20 |issue=1 |pages=129-37 |year=1994 |pmid=8201214}}</ref><ref>{{cite journal |author=Cavalcanti R, Pol S, Carnot F, Campos H, Degott C, Driss F, Legendre C, Kreis H |title=Impact and evolution of peliosis hepatis in renal transplant recipients |journal=Transplantation |volume=58 |issue=3 |pages=315-6 |year=1994 |pmid=8053054}}</ref>. | * '''Renal transplants:''' It can be found in up to 20% patients, can be related to azathioprine or cyclosporine use and may be associated with increased risk of [[transplant rejection]]<ref>{{cite journal |author=Izumi S, Nishiuchi M, Kameda Y, Nagano S, Fukunishi T, Kohro T, Shinji Y |title=Laparoscopic study of peliosis hepatis and nodular transformation of the liver before and after renal transplantation: natural history and aetiology in follow-up cases |journal=J. Hepatol. |volume=20 |issue=1 |pages=129-37 |year=1994 |pmid=8201214}}</ref><ref>{{cite journal |author=Cavalcanti R, Pol S, Carnot F, Campos H, Degott C, Driss F, Legendre C, Kreis H |title=Impact and evolution of peliosis hepatis in renal transplant recipients |journal=Transplantation |volume=58 |issue=3 |pages=315-6 |year=1994 |pmid=8053054}}</ref>. | ||
*'''Drugs and toxins:''' [[Corticosteroids]], [[androgens]], [[methyltestosterone]], [[azathioprine]], [[tamoxifen]]<ref>{{cite book | last = Goldman | first = Lee | title = Cecil Textbook of Medicine -- 2-Volume Set, Text with Continually Updated Online Reference | publisher = W.B. Saunders Company | location = Philadelphia | year = 2003 | isbn = 0721645631 }}</ref> | *'''Drugs and toxins:''' [[Corticosteroids]], [[androgens]], [[methyltestosterone]], [[azathioprine]], [[tamoxifen]]<ref>{{cite book | last = Goldman | first = Lee | title = Cecil Textbook of Medicine -- 2-Volume Set, Text with Continually Updated Online Reference | publisher = W.B. Saunders Company | location = Philadelphia | year = 2003 | isbn = 0721645631 }}</ref> | ||
==Differentiating Peliosis hepatis from Other Diseases== | |||
== Clinical features == | == Clinical features == | ||
The condition is typically asymptomatic and is discovered following evaluation of abnormal [[liver function test]]. However, when severe it can manifest as [[jaundice]], [[hepatomegaly]], [[liver failure]] and [[Hemoperitoneum|haemoperitoneum]]. | The condition is typically asymptomatic and is discovered following evaluation of abnormal [[liver function test]]. However, when severe it can manifest as [[jaundice]], [[hepatomegaly]], [[liver failure]] and [[Hemoperitoneum|haemoperitoneum]]. | ||
== Treatment == | ==Epidemiology and Demographics== | ||
==Risk Factors== | |||
==Screening== | |||
==Natural History, Complications, and Prognosis== | |||
===Natural History=== | |||
===Complications=== | |||
===Prognosis=== | |||
==Diagnosis== | |||
===Diagnostic Criteria=== | |||
===History and Symptoms=== | |||
===Physical Examination=== | |||
===Laboratory Findings=== | |||
===Imaging Findings=== | |||
===Other Diagnostic Studies=== | |||
==Treatment== | |||
=== Antimicrobial regimen === | === Antimicrobial regimen === | ||
* Bacillary peliosis hepatitis (peliosis hepatis caused by ''Bartonella spp.'')<ref> {{cite book | last = Gilbert | first = David | title = The Sanford guide to antimicrobial therapy | publisher = Antimicrobial Therapy | location = Sperryville, Va | year = 2015 | isbn = 978-1930808843 }}</ref> | * Bacillary peliosis hepatitis (peliosis hepatis caused by ''Bartonella spp.'')<ref> {{cite book | last = Gilbert | first = David | title = The Sanford guide to antimicrobial therapy | publisher = Antimicrobial Therapy | location = Sperryville, Va | year = 2015 | isbn = 978-1930808843 }}</ref> | ||
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*Type IV [[choledochal cysts]] | *Type IV [[choledochal cysts]] | ||
== | ===Medical Therapy=== | ||
===Surgery=== | |||
===Prevention=== | |||
==References== | |||
{{ | {{reflist|2}} | ||
[[Category:Hepatology]] | [[Category:Hepatology]] | ||
{{ | {{WS}} | ||
{{ | {{WH}} | ||
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:
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Overview
Peliosis Hepatis is an uncommon vascular condition characterised by randomly distributed multiple blood-filled cavities throughout liver. Size of the cavities usually ranges between a few millimetres to 3 cm in diameter[1]. In the past it was a mere histological curiosity occasionally found at autopsies but has been increasingly recognised with wide ranging conditions from AIDS to the use of anabolic steroids. It also occasionally affects spleen, lymph nodes, lungs, kidneys, adrenal glands, bone marrow and other parts of gastrointestinal tract.[2].
Peliosis hepatis is often erroneously written "peliosis hepatitis", despite its not being one of the hepatitides. The correct term arises from the Greek pelios, i.e. discoloured by extravasated blood, livid[3], and the Latinized Genitive case (hepatis[4]) of the Greek hepar, liver[5].
Historical Perspective
Classification
Pathophysiology
The pathogenesis of peliosis hepatis is unknown. There are several hypotheses, such as, it arise from sinusoidal epithelial damage[6], increased sinusoidal pressure due to obstruction in blood outflow from the liver, or hepatocellular necrosis[1].
Two morphologic patterns of hepatic peliosis were described by Yanoff and Rawson [7]. In the phlebectatic type, the blood-filled spaces are lined with endothelium and are associated with aneurismal dilatation of the central vein; in the parenchymal type, the spaces have no endothelial lining and they usually are associated with haemorrhagic parenchymal necrosis. Some considers both pattern to be one process, initiated by focal necrosis of liver parenchyma observed in parenchymal type progressing into formation of fibrous wall and endothelial lining around haemorrhage of phebectatic type. Fibrosis, cirrhosis, regenerative nodules, and tumours may also be seen.
Causes
Drug Causes
Disease associations
- Infections: HIV, Bacillary peliosis (caused by genus Bartonella, bacteria responsible for cat-scratch disease which are identified histologically adjacent to the peliotic lesions[8]), Staphylococcus aureus[9]
- Chronic conditions: End stage renal failure, Kwashiorkor, tuberculosis and other chronic infections.
- Malignancy: Monoclonal gammopathies (multiple myeloma and Waldenstrom macroglobulinemia), Hodgkin's disease, malignant histiocytosis, seminoma, hepatocellular adenoma and hepatocarcinoma,[10]
- Renal transplants: It can be found in up to 20% patients, can be related to azathioprine or cyclosporine use and may be associated with increased risk of transplant rejection[11][12].
- Drugs and toxins: Corticosteroids, androgens, methyltestosterone, azathioprine, tamoxifen[13]
Differentiating Peliosis hepatis from Other Diseases
Clinical features
The condition is typically asymptomatic and is discovered following evaluation of abnormal liver function test. However, when severe it can manifest as jaundice, hepatomegaly, liver failure and haemoperitoneum.
Epidemiology and Demographics
Risk Factors
Screening
Natural History, Complications, and Prognosis
Natural History
Complications
Prognosis
Diagnosis
Diagnostic Criteria
History and Symptoms
Physical Examination
Laboratory Findings
Imaging Findings
Other Diagnostic Studies
Treatment
Antimicrobial regimen
- Bacillary peliosis hepatitis (peliosis hepatis caused by Bartonella spp.)[14]
- Preferred regimen (1): Clarithromycin 500 mg bid for 4 months
- Preferred regimen (6): Erythromycin 500 mg PO qid for 4 months
- Preferred regimen (2): Doxycycline 100 mg PO bid for 4 months
- Special Consideration
- Severe disease
- Preferred regimen: Doxycycline 100 mg PO/IV bid for 4 months AND Rifampin 300 mg PO bid for 4 months
Other cystic conditions of liver
- Polycystic Liver Disease
- Solitary congenital cysts
- Congenital hepatic fibrosis
- Hydatid cyst
- Von Meyenburg complexes
- Caroli disease (type V choledochal cyst)
- Type IV choledochal cysts
Medical Therapy
Surgery
Prevention
References
- ↑ 1.0 1.1 Sleisenger, Marvin (2006). Sleisenger and Fordtran's Gastrointestinal and Liver Disease. Philadelphia: W.B. Saunders Company. ISBN 1416002456. Chapter 80
- ↑ Ichijima K, Kobashi Y, Yamabe H, Fujii Y, Inoue Y (1980). "Peliosis hepatis. An unusual case involving multiple organs". Acta Pathol. Jpn. 30 (1): 109–20. PMID 7361545.
- ↑ "Henry George Liddell, Robert Scott, A Greek-English Lexicon". Retrieved 2007-06-11.
- ↑ "Charlton T. Lewis, Charles Short, A Latin Dictionary". Retrieved 2007-07-02.
- ↑ "Henry George Liddell, Robert Scott, A Greek-English Lexicon". Retrieved 2007-07-02.
- ↑ Gushiken FC (2000). "Peliosis hepatis after treatment with 2-chloro-3'-deoxyadenosine". South. Med. J. 93 (6): 625–6. PMID 10881786.
- ↑ YANOFF M, RAWSON AJ (1964). "PELIOSIS HEPATIS. AN ANATOMIC STUDY WITH DEMONSTRATION OF TWO VARIETIES". Archives of pathology. 77: 159–65. PMID 14088761.
- ↑ Koehler JE, Sanchez MA, Garrido CS, Whitfeld MJ, Chen FM, Berger TG, Rodriguez-Barradas MC, LeBoit PE, Tappero JW (1997). "Molecular epidemiology of bartonella infections in patients with bacillary angiomatosis-peliosis". N. Engl. J. Med. 337 (26): 1876–83. PMID 9407154.
- ↑ Perkocha LA, Geaghan SM, Yen TS, Nishimura SL, Chan SP, Garcia-Kennedy R, Honda G, Stoloff AC, Klein HZ, Goldman RL (1990). "Clinical and pathological features of bacillary peliosis hepatis in association with human immunodeficiency virus infection". N. Engl. J. Med. 323 (23): 1581–6. PMID 2233946.
- ↑ Haboubi NY, Ali HH, Whitwell HL, Ackrill P (1988). "Role of endothelial cell injury in the spectrum of azathioprine-induced liver disease after renal transplant: light microscopy and ultrastructural observations". Am. J. Gastroenterol. 83 (3): 256–61. PMID 3278593.
- ↑ Izumi S, Nishiuchi M, Kameda Y, Nagano S, Fukunishi T, Kohro T, Shinji Y (1994). "Laparoscopic study of peliosis hepatis and nodular transformation of the liver before and after renal transplantation: natural history and aetiology in follow-up cases". J. Hepatol. 20 (1): 129–37. PMID 8201214.
- ↑ Cavalcanti R, Pol S, Carnot F, Campos H, Degott C, Driss F, Legendre C, Kreis H (1994). "Impact and evolution of peliosis hepatis in renal transplant recipients". Transplantation. 58 (3): 315–6. PMID 8053054.
- ↑ Goldman, Lee (2003). Cecil Textbook of Medicine -- 2-Volume Set, Text with Continually Updated Online Reference. Philadelphia: W.B. Saunders Company. ISBN 0721645631.
- ↑ Gilbert, David (2015). The Sanford guide to antimicrobial therapy. Sperryville, Va: Antimicrobial Therapy. ISBN 978-1930808843.