<unk>  is a test in which a<unk> <unk>  or a piece of a<unk> <unk>  is removed for examination under a microscope (see:<unk> . The<unk> atic system is made up of several<unk> <unk> s connected by<unk>  vessels. The<unk> s produce white blood cells<unk> ocytes) that fight infections. When an infection is present, the<unk> <unk> s swell, produce more white blood cells, and attempt to trap the organisms that are causing the infection. The<unk> <unk> s also try to trap cancer cells. Imaging studies include CXR, CT scans of Abdomen,chest, pelvis, neck and PET scans. CBC, ESR, serum ferritin, bone marrow aspiration.
Lymph node biopsy
Open biopsy
Needle-localized biopsy
Tissue typing
Lymphadenectomy
Immunophenotyping
Cytopathology
Mycology