malignant neoplasm (cancer)

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Introduction

Cancer is a generic term generally used in reference to malignant neoplasms. See neoplasm.

Classification

  • genetic classification of malignant neoplasms may better estimate prognosis & facilitate treatment[12]

Etiology

risk factors

Epidemiology

  • most common cancers* in men (all ages)[42]
cancer %
prostate cancer 29%
lung cancer 12%
colorectal cancer 8%
bladder cancer 6%
cutaneous melanoma 6%
kidney cancer, ureteral cancer 5%
non-Hodgkin's lymphoma 4%
oropharyngeal cancer, laryngeal cancer 4%
leukemia 4%
pancreatic cancer 3%
  • most common cancers* in women (all ages)[42]
cancer %
breast cancer 40%
lung cancer 17%
colorectal cancer 14%
uterine cancer* 7%
cutaneous melanoma 4%
non-Hodgkin's lymphoma 4%
thyroid cancer 3%
pancreatic cancer 3%
kidney cancer, ureteral cancer 3%
leukemia 3%

* cervical cancer & endometrial cancer

cancer %
lung cancer 21%
prostate cancer 11%
colorectal cancer 9%
pancreatic cancer 8%
liver cancer & biliary cancer 6%
leukemia 4%
esophageal cancer 4%
bladder cancer 4%
non-Hodgkin's lymphoma 4%
brain cancer & other nervous system cancers 3%
cancer %
lung cancer 21%
breast cancer 15%
colorectal cancer 8%
pancreatic cancer 8%
ovarian cancer 5%
uterine cancer* 5%
liver cancer & biliary cancer 4%
leukemia 3%
non-Hodgkin's lymphoma 3%
brain cancer & other nervous system cancers 3%

* cervical cancer & endometrial cancer

  • cancer mortality
    • 33% reduction in cancer mortality 1991-2020[42]
    • declined by 20% between 1980-2014[32] & 1991-2010[17] from 240 to 192 deaths per 100,000
    • substantial geographic variability within in U.S.
      • Summit County, Colorado with lowest cancer mortality in 2014, at 71 deaths per 100,000[32]
    • Union County, Florida with highest cancer mortality in 2014, at 503 per 100,000[32]
    • overall cancer incidence was lower in nonmetropolitan areas than metropolitan areas 2006-2015[33]
      • incident cases of lung, colorectal, & cervical cancer higher in nonmetropolitan areas
      • mortality higher for these cancers plus prostate cancer in nonmetropolitan areas[33]
  • incidence of invasive cancer: 451 per 100,000 population
    • incidence higher in men than women
      • mortality similar among men & women[27]
    • older adults & black Americans of all ages are likely to develop cancer & present with more advanced disease[18][27]
    • aggressiveness of malignancy shows variable association with age[18]
    • ethnic differences in cancer rates & mortality[23]
  • populations living in extremely cold or high-altitude nvironments have genes that increase survival but predispose individuals to cancer later in life, especially lung cancer, breast cancer, & colorectal cancer[36]
  • in the Chinese community, cancer has traditionally been the 'unspeakable' diagnosis from which elders have been shielded[18][22]

* leukemias & lymphomas together rank under bladder cancer in men & endometrial cancer in women (about 6% of all cancers)

cancer %
breast cancer 40%
lung cancer 17%
colorectal cancer 14%
uterine cancer* 7%
cutaneous melanoma 4%
non-Hodgkin's lymphoma 4%
thyroid cancer 3%
pancreatic cancer 3%
kidney cancer, ureteral cancer 3%
leukemia 3%

* cervical cancer & endometrial cancer

cancer %
lung cancer 21%
prostate cancer 11%
colorectal cancer 9%
pancreatic cancer 8%
liver cancer & biliary cancer 6%
leukemia 4%
esophageal cancer 4%
bladder cancer 4%
non-Hodgkin's lymphoma 4%
brain cancer & other nervous system cancers 3%
cancer %
lung cancer 21%
breast cancer 15%
colorectal cancer 8%
pancreatic cancer 8%
ovarian cancer 5%
uterine cancer* 5%
liver cancer & biliary cancer 4%
leukemia 3%
non-Hodgkin's lymphoma 3%
brain cancer & other nervous system cancers 3%

* cervical cancer & endometrial cancer

  • cancer mortality
    • 33% reduction in cancer mortality 1991-2020[42]
    • declined by 20% between 1980-2014[32] & 1991-2010[17] from 240 to 192 deaths per 100,000
    • substantial geographic variability within in U.S.
      • Summit County, Colorado with lowest cancer mortality in 2014, at 71 deaths per 100,000[32]
    • Union County, Florida with highest cancer mortality in 2014, at 503 per 100,000[32]
    • overall cancer incidence was lower in nonmetropolitan areas than metropolitan areas 2006-2015[33]
      • incident cases of lung, colorectal, & cervical cancer higher in nonmetropolitan areas
      • mortality higher for these cancers plus prostate cancer in nonmetropolitan areas[33]
  • incidence of invasive cancer: 451 per 100,000 population
    • incidence higher in men than women
      • mortality similar among men & women[27]
    • older adults & black Americans of all ages are likely to develop cancer & present with more advanced disease[18][27]
    • aggressiveness of malignancy shows variable association with age[18]
    • ethnic differences in cancer rates & mortality[23]
  • populations living in extremely cold or high-altitude nvironments have genes that increase survival but predispose individuals to cancer later in life, especially lung cancer, breast cancer, & colorectal cancer[36]
  • in the Chinese community, cancer has traditionally been the 'unspeakable' diagnosis from which elders have been shielded[18][22]

* leukemias & lymphomas together rank under bladder cancer in men & endometrial cancer in women (about 6% of all cancers)

Pathology

* ependymomas may be entirely epigenetic

Genetics

Clinical manifestations

Laboratory

Complications

Management

*

*

Notes

More general terms

More specific terms

Additional terms

References

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