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Choriocarcinoma is a malignant, trophoblastic [1] cancer, usually of the placenta. It is characterized by early hematogenous spread to the lungs. It is characterized by early hematogenous spread to the lungs.
This is a list of bacteria that have been identified as promoting or causing: Uncontrolled growth of tissue in the body; Cancer; Carcinomas; Tumors (including benign or slow growing) Neoplasms; Sarcomas; Precancerous lesions; Coinfectious agent promoting the above growths
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
In biology, a pathogen (Greek: πάθος, pathos "suffering", "passion" and -γενής, -genēs "producer of"), in the oldest and broadest sense, is any organism or agent that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ. [1] The term pathogen came into use in the 1880s.
Nevertheless, significant amounts of pathology research are conducted on animals, for two primary reasons: 1) The origins of diseases are typically zoonotic in nature, and many infectious pathogens have animal vectors and, as such, understanding the mechanisms of action for these pathogens in non-human hosts is essential to the understanding ...
Infection is the fourth most important risk factor for cancer mortality in the developed world, causing about 10% of cancer mortality (see cancer prevention), coming after tobacco (~30% of cancers), diet (~30%) and obesity (~15%).
Bacterial pathogens also require access to carbon and energy sources for growth. To avoid competition with host cells for glucose which is the main energy source used by human cells, many pathogens including the respiratory pathogen Haemophilus influenzae specialise in using other carbon sources such as lactate that are abundant in the human ...
Pathognomonic (rare synonym pathognomic [1]) is a term, often used in medicine, that means "characteristic for a particular disease".A pathognomonic sign is a particular sign whose presence means that a particular disease is present beyond any doubt.