Difference between revisions of "Metastases"
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=Special types= | =Special types= | ||
==In-transit metastasis== | ==In-transit metastasis== | ||
Definition - the | Definition - the separate tumour nodule must be:<ref>URL: [http://www.cancer.gov/dictionary?cdrid=634128 http://www.cancer.gov/dictionary?cdrid=634128]. Accessed on: 28 March 2012.</ref> | ||
#>2 cm from the primary tumour. | #>2 cm from the primary tumour. | ||
#Arises between the nearest (regional) [[lymph node]]s and the primary tumour. | #Arises between the nearest (regional) [[lymph node]]s and the primary tumour. | ||
| Line 11: | Line 11: | ||
*It is called "in-tranist", as it happens while the tumour is on the way to the regional lymph node. | *It is called "in-tranist", as it happens while the tumour is on the way to the regional lymph node. | ||
*''In-transit metastases'' are seen in [[malignant melanoma]], [[merkel cell carcinoma]]. | *''In-transit metastases'' are seen in [[malignant melanoma]], [[merkel cell carcinoma]]. | ||
*If a separate tumour nodule <= 2 cm from the primary tumour, it is known as ''satellitosis''. | |||
=Specific sites= | =Specific sites= | ||
Revision as of 15:17, 29 March 2012
Metastases are usually an ominous finding. They are not always obvious when in encounter; thus, they should be considered with every diagnosis of a malignant tumour.
Special types
In-transit metastasis
Definition - the separate tumour nodule must be:[1]
- >2 cm from the primary tumour.
- Arises between the nearest (regional) lymph nodes and the primary tumour.
- The tumour presumably arises from a lymphatic that drains the tissue in which the primary tumour grew.
Notes:
- It is called "in-tranist", as it happens while the tumour is on the way to the regional lymph node.
- In-transit metastases are seen in malignant melanoma, merkel cell carcinoma.
- If a separate tumour nodule <= 2 cm from the primary tumour, it is known as satellitosis.
Specific sites
Internal organs
Lymph node
Main article: Lymph node metastasis
Specific tumours
Melanoma
Main article: Metastatic melanoma
Osteosarcoma
Main article: Osteosarcoma
See also
Reference
- ↑ URL: http://www.cancer.gov/dictionary?cdrid=634128. Accessed on: 28 March 2012.