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Brain metastasis: neurological symptoms such as headaches, [10] seizures, [10] and vertigo [10] Although advanced cancer may cause pain, it is often not the first symptom. Some patients, however, do not show any symptoms. [10] When the organ gets a metastatic disease it begins to shrink until its lymph nodes burst, or undergo lysis.
Lymph node metastasis is the spread of cancer cells into a lymph node.. Lymph node metastasis is different from malignant lymphoma.Lymphoma is a cancer of lymph node, rather than cancer in the lymph node, because lymphoma originates from the lymph node itself, instead of originating elsewhere (e.g., the breast or colon) and spreading to the lymph nodes.
CNS metastasis is the spread and proliferation of cancer cells from their original tumour to form secondary tumours in portions of the central nervous system. [ 1 ] The process of tumour cells invading distant tissue is complex and obscure, but modern technology has permitted an enhanced detection of metastasis .
Micrograph showing a colorectal carcinoma metastasis to the cerebellum. HPS stain. A brain metastasis is a cancer that has metastasized (spread) to the brain from another location in the body and is therefore considered a secondary brain tumor. [1] [2] The metastasis typically shares a cancer cell type with the original site of the cancer. [3]
Virchow correctly identified the condition as blood disease, and named it leukämie in 1847 (later anglicised to leukemia). [14] [15] [16] In 1857, he was the first to describe a type of tumour called chordoma that originated from the clivus (at the base of the skull). [17] [18]
The term benign in more general medical use characterizes a condition or growth that is not cancerous, i.e. does not spread to other parts of the body or invade nearby tissue. Sometimes the term is used to suggest that a condition is not dangerous or serious. [4] Malignancy in cancers is characterized by anaplasia, invasiveness, and metastasis. [5]
In most cases, CNS involvement occurs after metastatic dissemination to the bones, liver and/or lungs has already occurred; for that reason, many patients already have refractory, terminal breast cancer by the time they are diagnosed with brain metastases. The diagnosis of brain metastases from breast cancer relies mainly on patient-reported ...
Stage migration is a change in the distribution of stages in a particular cancer population, induced by either a change in the staging system itself or else a change in technology which allows more sensitive detection of tumor spread and therefore more sensitivity in detecting spread of disease (e.g., the use of MRI scans).