Cutaneous Metastases

Breast cancer is known to metastasize to anywhere in the body, either by hematogenous or lymphatogenous routes. Cancers that have the highest tendency to metastasize to the skin include melanoma, breast, nasal sinuses, larynx and oral cavity.

Excluding melanoma, cutaneous metastases occur more often in breast cancer than in other diseases in women and is the most often encountered in clinical practice. In a recent study, that included 12146 patients with internal malignancies, the rate of CM associated with breast carcinoma was 2.42 percent.

PETCT - subcutaneous metastases - transverse image shows extent of disease located in the soft tissue at the upper lobe of the liver.

projection image

Another example of a female with a clinical history of breast cancer who presents with "nodular" cutaneous metastases. image includes PET WB coronal slice and comparative transverse PET and CT slices.  Localized nodules are the most common presentation, occurring in 10% of patients.

Reading:
Cutaneous metastases of breast carcinoma: a case report.

Cutaneous and subcutaneous metastases of adenocarcicoma of the colon and rectum