Swollen supraclavicular lymph nodes may occur as a reaction to infection or due to metastatic cancer. This type of swelling typically occurs just above a person’s collarbone. Swelling in the ...

ASCO Guidelines provide recommendations with comprehensive review and analyses of the relevant literature for each recommendation, following the guideline development process as outlined in the ASCO ...

Swollen lymph nodes in the groin, called inguinal lymph nodes, are usually caused by a lower body infection, such as sexually transmitted infections (STIs), fungal infections, cellulitis, or urinary ...

Serotonin is a neurotransmitter and hormone that helps regulate mood, sleep, digestion, blood clotting, and sex drive. Your body makes it from tryptophan, an amino acid found in meat, dairy, eggs, and ...

Bone marrow is the soft spongy tissue that lies within the hollow interior of long bones. In adults, marrow in large bones produces new blood cells. Bone marrow forms around 4% of total body weight ...