Main sites of metastases for common cancer types. Primary cancers are denoted by "...cancer" (except for skin melanoma) and their main metastasis sites are denoted by "...metastases".
List of included information
The included cancer types are the ones causing most death as per data from the US in 2008.[1]
Lung cancer, mainly to adrenal glands, brain, and bone[2]
Breast cancer, mainly to bone, liver, lung and brain.[3]
Colon cancer, mainly to liver.[4]
Pancreatic cancer, mainly to liver and lungs.[5]
Melanoma, mainly to brain[6]
Ovarian cancer, mainly to pleural cavity and liver[7]Not included information of major importance
Prostate cancer (in males) usually metastasizes to the bones.[8]References

↑ Jemal A, Siegel R, Ward E et al. (2008). "Cancer statistics, 2008". CA Cancer J Clin 58 (2): 71–96. DOI:10.3322/CA.2007.0010. PMID 18287387.

↑ [1] PMID 16401990 Long-term survival cases of lung cancer presented as solitary bone metastasis.

↑ Lacroix M (December 2006). "Significance, detection and markers of disseminated breast cancer cells". Endocrine-related Cancer 13 (4): 1033–67. DOI:10.1677/ERC-06-0001. PMID 17158753.

↑ Metastatic Cancer: Questions and Answers archive copy, fact sheet from the National Cancer Institute. Reviewed: 09/01/2004

↑  Medscape &gt; Pancreatic Cancer Author: Tomislav Dragovich. Chief Editor: Jules E Harris. Updated: May 5, 2011

↑ [2] Melanoma Metastasis . By Isaiah J. Fidler. Cancer Control Journal. Vol 2, No. 5 September/October 1995

↑ [3] PMID 11844820: Epithelial Ovarian Cancer Metastasizing to the Brain: A Late Manifestation of the Disease With an Increasing Incidence

↑ Male Genitals - Prostate Neoplasms. Pathology study images. University of Virginia School of Medicine. Archived from the original on 2011-07-20. Retrieved on 2011-04-28.
All imaged used are in the Public Domain
Mikael Häggström