Metastases

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Revision as of 04:08, 28 March 2012 by Michael (talk | contribs) (In-transit metastasis)
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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 metastatic tumour must be:[1]

  1. >2 cm from the primary tumour.
  2. 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 common in malignant melanoma.

Specific sites

Internal organs

Lymph node

Specific tumours

Melanoma

Osteosarcoma

See also

  1. URL: http://www.cancer.gov/dictionary?cdrid=634128. Accessed on: 28 March 2012.