Assertion: melanoma | /r/HasProperty | confined to top layers of the skin
Facets:
Source sentences:
text: As a melanoma begins to grow it is initially confined to the top layers of the skin, however, if left untreated can spread quickly through the deeper layers where it can then enter the lymphatic system or blood stream and travel to almost any part of the body, especially the lymph nodes, lungs, liver, brain and other areas of the skin.