DEAR DR. ROACH: I am a 58-year-old male. Several months ago, I lost 17 pounds, and even though I have gained back about 2 pounds in the past month, I cannot gain the weight back, even by increasing my ...

Lymphocytes are a type of white blood cell produced in bone marrow that play a crucial role in your immune system. There are several types—called T cells, B cells, and natural killer (NK) cells—that ...

Please provide your email address to receive an email when new articles are posted on . Higher blood neutrophil count and neutrophil-to-lymphocyte ratio predict more severe disease and increased ...

Inflammatory bowel disease and coexistence of neuroendocrine neoplasms: A review of the literature. This is an ASCO Meeting Abstract from the 2022 ASCO Annual Meeting I. This abstract does not include ...

Dear Dr. Roach: I am a female and almost 75 years old. My vital signs are always normal, and I am active, but slightly overweight. I get quarterly blood draws, and every reading is in the normal range ...

Idiopathic CD4 lymphocytopenia (ICL) is a clinical syndrome that is defined by CD4 lymphopenia of less than 300 cells per cubic millimeter in the absence of any primary or acquired cause of ...

The smallpox vaccine effectively induces immunity against mpox virus infection (formerly simian smallpox) in patients with human immunodeficiency virus (HIV) infection, although patients with ...

Monoclonal B-cell lymphocytosis (MBL) is a condition in which a person has an excessive amount of abnormal B cells, which are a type of white blood cell known as lymphocytes. The number of abnormal B ...