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==Differentiating Peliosis hepatis from Other Diseases==
==Differentiating Peliosis hepatis from Other Diseases==
Peliosis hepatis must be differentiated from [[Hepatic Adenoma]], [[Hemangioma]], Focal Nodular Hyperplasia, Hepatic Abscess, Hypervascular Metastases, and [[Hepatocellular]] [[Carcinoma]].<ref> https://www.ajronline.org/doi/10.2214/AJR.05.0167#:~:text=The%20cause%20of%20peliosis%20hepatis,chronic%20wasting%20diseases%20(e.g.%2C%20tuberculosis </ref>
Peliosis hepatis must be differentiated from [[Hepatic Adenoma]], [[Hemangioma]], Focal Nodular Hyperplasia, [[Hepatic]] [[Abscess]], [[Hypervascular]] [[Metastases]], and [[Hepatocellular]] [[Carcinoma]].<ref> https://www.ajronline.org/doi/10.2214/AJR.05.0167#:~:text=The%20cause%20of%20peliosis%20hepatis,chronic%20wasting%20diseases%20(e.g.%2C%20tuberculosis </ref>


==Epidemiology and Demographics==
==Epidemiology and Demographics==

Revision as of 19:38, 8 November 2020

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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

There is limited information about the historical perspective of Peliosis hepatis

Classification

There is no established system for the classification of Peliosis hepatis

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

Peliosis hepatis may be caused by drugs, toxins, chronic wasting disease, malignancy, and infection. Peliosis Hepatitis may develop in individuals with renal or cardiac transplantation, but in about 20-50% of patients, they are no comorbidities.

common causes include

Differentiating Peliosis hepatis from Other Diseases

Peliosis hepatis must be differentiated from Hepatic Adenoma, Hemangioma, Focal Nodular Hyperplasia, Hepatic Abscess, Hypervascular Metastases, and Hepatocellular Carcinoma.[9]

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications, and Prognosis

Natural History

Complications

Prognosis

Diagnosis

Diagnostic Criteria

History and Symptoms

Physical Examination

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.

Laboratory Findings

Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

  • Bacillary peliosis hepatitis (peliosis hepatis caused by Bartonella spp.)[16]
  • 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

Surgery

Prevention

See Also

References

  1. 1.0 1.1 Sleisenger, Marvin (2006). Sleisenger and Fordtran's Gastrointestinal and Liver Disease. Philadelphia: W.B. Saunders Company. ISBN 1416002456. Chapter 80
  2. 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.
  3. "Henry George Liddell, Robert Scott, A Greek-English Lexicon". Retrieved 2007-06-11.
  4. "Charlton T. Lewis, Charles Short, A Latin Dictionary". Retrieved 2007-07-02.
  5. "Henry George Liddell, Robert Scott, A Greek-English Lexicon". Retrieved 2007-07-02.
  6. Gushiken FC (2000). "Peliosis hepatis after treatment with 2-chloro-3'-deoxyadenosine". South. Med. J. 93 (6): 625–6. PMID 10881786.
  7. YANOFF M, RAWSON AJ (1964). "PELIOSIS HEPATIS. AN ANATOMIC STUDY WITH DEMONSTRATION OF TWO VARIETIES". Archives of pathology. 77: 159–65. PMID 14088761.
  8. https://www.ajronline.org/doi/10.2214/AJR.05.0167#:~:text=The%20cause%20of%20peliosis%20hepatis,chronic%20wasting%20diseases%20(e.g.%2C%20tuberculosis
  9. https://www.ajronline.org/doi/10.2214/AJR.05.0167#:~:text=The%20cause%20of%20peliosis%20hepatis,chronic%20wasting%20diseases%20(e.g.%2C%20tuberculosis
  10. 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.
  11. 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.
  12. 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.
  13. 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.
  14. 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.
  15. Goldman, Lee (2003). Cecil Textbook of Medicine -- 2-Volume Set, Text with Continually Updated Online Reference. Philadelphia: W.B. Saunders Company. ISBN 0721645631.
  16. Gilbert, David (2015). The Sanford guide to antimicrobial therapy. Sperryville, Va: Antimicrobial Therapy. ISBN 978-1930808843.

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