Satellitosis

Satellitosis is the presence of separate tumour nodules that are close to the tumour.

Satellite nodules redirects here.

General

• Uncommon.
• Poor prognosticator.
  • Malignant melanoma.
  • Hepatocellular carcinoma.
  • Cholangiocarcinoma.

Gross

• Should be <2 cm from the tumour.

Note:

• Tumour nodules further away are in-transit metastases or tumour deposits (in colorectal carcinoma).

Microscopic

• Tumour nodule(s) separated from the (main) tumour by normal tissue.^{[citation needed]}

DDx:

• Tumour without satellitosis - nodule joins with main tumour in an out-of-plane section.

See also

• Tumour budding.
• In-transit metastasis.
• Tumour deposits.