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Gallbladder cancer

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Gallbladder cancer
SpecialtyOncology
SymptomsAbdominal pain, Bloating, Fever, Unexplained weight loss, Nausea, Yellowing of the skin, although some people may have no symptoms[1]
ComplicationsCancer spreading to other parts of the body
Usual onsetAbove 65 years old[2]
TypesAdenocarcinoma (most common), Squamous cell carcinoma (more rare)[3]
CausesUnknown[4]
Risk factorsHistory of Gallstones and other Gallbladder diseases
Diagnostic methodBlood tests, medical imaging, examination of the Bile duct
Differential diagnosisOther types of cancer in the Digestive system
TreatmentSurgery, Radiation therapy, Chemotherapy[5]
PrognosisFive-year survival rate ~19% (USA) (January, 2020)[6]
Frequency~3,700 cases per year (USA)[7]
Deaths~2,000 deaths per year (USA)[8]

Gallbladder cancer is a relatively uncommon cancer, with an incidence of fewer than 2 cases per 100,000 people per year in the United States.[9] It is particularly common in central and South America, central and eastern Europe, Japan and northern India; it is also common in certain ethnic groups e.g. Native American Indians and Hispanics.[10] If it is diagnosed early enough, it can be cured by removing the gallbladder, part of the liver and associated lymph nodes. Most often it is found after symptoms such as abdominal pain, jaundice and vomiting occur, and it has spread to other organs such as the liver.

It is a rare cancer that is thought to be related to gallstones building up, which also can lead to calcification of the gallbladder, a condition known as porcelain gallbladder. Porcelain gallbladder is also rare. Some studies indicate that people with porcelain gallbladder have a high risk of developing gallbladder cancer, but other studies question this. The outlook is poor for recovery if the cancer is found after symptoms have started to occur, with a 5-year survival rate close to 3%.

Signs and symptoms

Early symptoms mimic gallbladder inflammation due to gallstones. Later, the symptoms may be that of biliary and stomach obstruction.

Of note, Courvoisier's law states that in the presence of a palpably enlarged gallbladder which is nontender and accompanied with mild painless jaundice, the cause is unlikely to be gallstones. This implicates possible malignancy of the gallbladder or pancreas, and the swelling is unlikely due to gallstones due to the chronic inflammation association with gallstones leading to a shrunken, non-distensible gallbladder. However, Ludwig Georg Courvoisier's original observations, published in Germany in 1890, were not originally cited as a law, and no mention of malignancy or pain (tenderness) was made. These points are commonly misquoted or confused in the medical literature.[11]

Risk factors

  • Gender— approximately twice as common in women than men, usually in seventh and eighth decades
  • Obesity
  • Chronic cholecystitis and cholelithiasis
  • Primary sclerosing cholangitis[12]
  • Chronic typhoid infection of gallbladder; chronic Salmonella typhi carriers have 3 to 200 times higher risk of gallbladder cancer than non-carriers and 1–6% lifetime risk of development of cancer[13]
  • Various single nucleotide polymorphisms (SNPs) have been shown to be associated with gallbladder cancer; however, existing genetic studies in GBC susceptibility have so far been insufficient to confirm any association[14]

Diagnosis

Early diagnosis is not generally possible. People at high risk, such as women or Native Americans with gallstones, are evaluated closely. Transabdominal ultrasound, CT scan, endoscopic ultrasound, MRI, and MR cholangio-pancreatography (MRCP) can be used for diagnosis. A large number of gallbladder cancers are found incidentally in patients being evaluated for cholelithiasis, or gallstone formation, which is far more common.[15] A biopsy is the only certain way to tell whether or not the tumorous growth is malignant.[16]

Differential diagnosis

Xanthogranulomatous cholecystitis (XGC) is a rare form of gallbladder disease which mimics gallbladder cancer although it is not cancerous.[17][18] It was first discovered and reported in the medical literature in 1976 by J.J. McCoy, Jr., and colleagues.[17][19]

Treatment

The most common and most effective treatment is surgical removal of the gallbladder (cholecystectomy) with part of liver and lymph node dissection. However, with gallbladder cancer's extremely poor prognosis, most patients will die within a year of surgery. If surgery is not possible, endoscopic stenting of the biliary tree can reduce jaundice and a stent in stomach may relieve vomiting. Chemotherapy and radiation may also be used with surgery. If gallbladder cancer is diagnosed after cholecystectomy for stone disease (incidental cancer), re-operation to remove part of liver and lymph nodes is required in most cases. When it is done as early as possible, patients have the best chance of long-term survival and even cure.[20]

Epidemiology

Most tumors are adenocarcinomas, with a small percent being squamous cell carcinomas.

  • Gallbladder cancer is relatively rare, affecting fewer than 5000 people in the United States per year[21]
  • Gallbladder cancer is more common in South American countries, Japan, and Israel; in Chile, gallbladder cancer is the fourth most common cause of cancer deaths.
  • 5th most common gastrointestinal cancer
  • Up to 5 times more common in women than men depending on population (e.g. 73% female in China[22]
  • The age adjusted incidence rates of gall bladder cancer is highest in Chile, followed by in the state of Assam in India[23]

Prognosis

The prognosis still remains poor. The cancer commonly spreads to the liver, bile duct, stomach, and duodenum.

References

  1. ^ https://www.mayoclinic.org/diseases-conditions/gallbladder-cancer/symptoms-causes/syc-20353370
  2. ^ https://www.cancer.org/cancer/gallbladder-cancer/causes-risks-prevention/risk-factors.html
  3. ^ https://www.cancerresearchuk.org/about-cancer/gallbladder-cancer/types
  4. ^ https://www.mayoclinic.org/diseases-conditions/gallbladder-cancer/symptoms-causes/syc-20353370
  5. ^ https://www.mayoclinic.org/diseases-conditions/gallbladder-cancer/diagnosis-treatment/drc-20353374
  6. ^ https://www.cancer.net/cancer-types/gallbladder-cancer/statistics
  7. ^ https://cebp.aacrjournals.org/content/24/9/1319
  8. ^ https://cebp.aacrjournals.org/content/24/9/1319
  9. ^ "CDC - Gallbladder Cancer Incidence and Death Rates". www.cdc.gov. 2018-09-27. Retrieved 2018-12-10.
  10. ^ Kapoor VK, McMichael AJ (2003). "Gallbladder cancer: an 'Indian' disease". Natl Med J India. 16 (4): 209–13. PMID 14606770.
  11. ^ Fitzgerald, J Edward F; White Matthew J; Lobo Dileep N (Apr 2009). "Courvoisier's gallbladder: law or sign?". World Journal of Surgery. 33 (4). United States: 886–91. doi:10.1007/s00268-008-9908-y. ISSN 0364-2313. PMID 19190960.
  12. ^ Folseraas, T; Boberg, KM (February 2016). "Cancer Risk and Surveillance in Primary Sclerosing Cholangitis". Clinics in Liver Disease. 20 (1): 79–98. doi:10.1016/j.cld.2015.08.014. PMID 26593292.
  13. ^ Ferreccio, C. (2012). "Salmonella typhi and Gallbladder Cancer". Bacteria and Cancer. pp. 117–137. doi:10.1007/978-94-007-2585-0_5. ISBN 978-94-007-2584-3.
  14. ^ Srivastava K, Srivastava A, Sharma KL, Mittal B. Candidate gene studies in gallbladder cancer: a systematic review and meta-analysis. Mutat Res. 2011 Jul–Oct;728(1–2):67–79.
  15. ^ Duffy, A.; Capanu, M.; Abou-Alfa, G. K.; Huitzil, D.; Jarnagin, W.; Fong, Y.; D'Angelica, M.; Dematteo, R. P.; Blumgart, L. H. (2008-12-01). "Gallbladder cancer (GBC): 10-year experience at Memorial Sloan-Kettering Cancer Centre (MSKCC)". Journal of Surgical Oncology. 98 (7): 485–489. doi:10.1002/jso.21141. ISSN 1096-9098. PMID 18802958.
  16. ^ "Tests for gallbladder cancer". Cancer Research UK. Archived from the original on 10 October 2011. Retrieved 17 September 2012.
  17. ^ a b Makino I, Yamaguchi T, Sato N, Yasui T, Kita I (August 2009). "Xanthogranulomatous cholecystitis mimicking gallbladder carcinoma with a false-positive result on fluorodeoxyglucose PET". World J. Gastroenterol. 15 (29): 3691–3. doi:10.3748/wjg.15.3691. PMC 2721248. PMID 19653352.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  18. ^ Rao RV, Kumar A, Sikora SS, Saxena R, Kapoor VK (2005). "Xanthogranulomatous cholecystitis: differentiation from associated gall bladder carcinoma". Trop Gastroenterol. 26 (1): 31–3. PMID 15974235.
  19. ^ McCoy JJ, Vila R, Petrossian G, McCall RA, Reddy KS (March 1976). "Xanthogranulomatous cholecystitis. Report of two cases". J S C Med Assoc. 72 (3): 78–9. PMID 1063276.
  20. ^ Kapoor VK (March 2001). "Incidental gallbladder cancer". Am. J. Gastroenterol. 96 (3): 627–9. PMID 11280526.[dead link‍]
  21. ^ Carriaga, M. T.; Henson, D. E. (1995-01-01). "Liver, gallbladder, extrahepatic bile ducts, and pancreas". Cancer. 75 (1 Suppl): 171–190. doi:10.1002/1097-0142(19950101)75:1+<171::AID-CNCR2820751306>3.0.CO;2-2. ISSN 0008-543X. PMID 8000995.[dead link‍]
  22. ^ Hsing AW, Gao YT, Han TQ, et al. (December 2007). "Gallstones and the risk of biliary tract cancer: a population-based study in China". Br. J. Cancer. 97 (11): 1577–82. doi:10.1038/sj.bjc.6604047. PMC 2360257. PMID 18000509.
  23. ^ National Cancer Registry Programme (2013).Three-year report of population based cancer registries:2009-2011. NCDIR-ICMR, Bangalore.
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