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Experimental pathology, also known as investigative pathology, is the scientific study of disease processes through the microscopic or molecular examination of organs, tissues, cells, or body fluids from diseased organisms. It is closely related, both historically and in modern academic settings, to the medical field of pathology.
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Pathology is the study of disease and injury. The word pathology also refers to the study of disease in general, incorporating a wide range of biology research fields and medical practices. However, when used in the context of modern medical treatment, the term is often used in a narrower fashion to refer to processes and tests that fall within the contemporary medical field of "general pathology", an area that includes a number of distinct but inter-related medical specialties that diagnose disease, mostly through analysis of tissue and human cell samples. Idiomatically, "a pathology" may also refer to the predicted or actual progression of particular diseases, and the affix pathy is sometimes used to indicate a state of disease in cases of both physical ailment and psychological conditions. A physician practicing pathology is called a pathologist.
Anatomical pathology (Commonwealth) or anatomic pathology (U.S.) is a medical specialty that is concerned with the diagnosis of disease based on the macroscopic, microscopic, biochemical, immunologic and molecular examination of organs and tissues. Over the 20th century, surgical pathology has evolved tremendously: from historical examination of whole bodies (autopsy) to a more modernized practice, centered on the diagnosis and prognosis of cancer to guide treatment decision-making in oncology. Its modern founder was the Italian scientist Giovan Battista Morgagni from Forlì.
Forensic pathology is pathology that focuses on determining the cause of death by examining a corpse. A post mortem examination is performed by a medical examiner or forensic pathologist, usually during the investigation of criminal law cases and civil law cases in some jurisdictions. Coroners and medical examiners are also frequently asked to confirm the identity of remains.
Epidemiology is the study and analysis of the distribution, patterns and determinants of health and disease conditions in a defined population.
Plant pathology is the scientific study of diseases in plants caused by pathogens and environmental conditions. Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus-like organisms, phytoplasmas, protozoa, nematodes and parasitic plants. Not included are ectoparasites like insects, mites, vertebrate, or other pests that affect plant health by eating plant tissues and causing injury that may admit plant pathogens. Plant pathology also involves the study of pathogen identification, disease etiology, disease cycles, economic impact, plant disease epidemiology, plant disease resistance, how plant diseases affect humans and animals, pathosystem genetics, and management of plant diseases.
Cytopathology is a branch of pathology that studies and diagnoses diseases on the cellular level. The discipline was founded by George Nicolas Papanicolaou in 1928. Cytopathology is generally used on samples of free cells or tissue fragments, in contrast to histopathology, which studies whole tissues. Cytopathology is frequently, less precisely, called "cytology", which means "the study of cells".
Pathophysiology is a branch of study, at the intersection of pathology and physiology, concerning disordered physiological processes that cause, result from, or are otherwise associated with a disease or injury. Pathology is the medical discipline that describes conditions typically observed during a disease state, whereas physiology is the biological discipline that describes processes or mechanisms operating within an organism. Pathology describes the abnormal or undesired condition, whereas pathophysiology seeks to explain the functional changes that are occurring within an individual due to a disease or pathologic state.
Medical Investigation is an American medical drama television series that began September 9, 2004, on NBC. It ran for 20 one-hour episodes before its cancellation on March 25, 2005. The series was co-produced by Paramount Network Television and NBC Universal Television Studio.
The medical examiner is an appointed official in some American jurisdictions who is trained in pathology that investigates deaths that occur under unusual or suspicious circumstances, to perform post-mortem examinations, and in some jurisdictions to initiate inquests.
A petechia is a small red or purple spot that can appear on the skin, conjunctiva, retina, and mucous membranes which is caused by haemorrhage of capillaries. The word is derived from Italian petecchia, 'freckle,' of obscure origin. It refers to one of the three descriptive types of hematoma differentiated by size, the other two being ecchymosis and purpura. The term is always used in the plural (petechiae), since a single petechia is seldom noticed or significant.
Neuropathology is the study of disease of nervous system tissue, usually in the form of either small surgical biopsies or whole-body autopsies. Neuropathologists usually work in a department of anatomic pathology, but work closely with the clinical disciplines of neurology, and neurosurgery, which often depend on neuropathology for a diagnosis. Neuropathology also relates to forensic pathology because brain disease or brain injury can be related to cause of death. Neuropathology should not be confused with neuropathy, which refers to disorders of the nerves themselves rather than the tissues. In neuropathology, the branches of the specializations of nervous system as well as the tissues come together into one field of study.
Banti's syndrome, named for Guido Banti, is a chronic congestive enlargement of the spleen resulting in premature destruction of the red blood cells by the spleen.
Oral and maxillofacial pathology refers to the diseases of the mouth, jaws and related structures such as salivary glands, temporomandibular joints, facial muscles and perioral skin. The mouth is an important organ with many different functions. It is also prone to a variety of medical and dental disorders.
Vinay Kumar is the Lowell T. Coggeshall Distinguished Service Professor of Pathology at the University of Chicago, where he was also the Chairman (2000-2016) of the Department of Pathology. He is a recipient of Life Time Achievement Award by National Board of Examinations.
The history of pathology can be traced to the earliest application of the scientific method to the field of medicine, a development which occurred in the Middle East during the Islamic Golden Age and in Western Europe during the Italian Renaissance.
The American Society for Investigative Pathology (ASIP) is a society of biomedical scientists who investigate mechanisms of disease. ASIP membership includes scientists in the academic, government, hospital, and pharmaceutical arenas that focus their research on the pathogenesis, classification, diagnosis and manifestations of disease. Research findings are ultimately used in the understanding, diagnosis and treatment of human diseases. The word pathology is derived from the Greek word "pathos" meaning "disease."
Veterinary Pathology is a peer-reviewed academic journal that publishes papers in the field of veterinary pathology. As of 2017, the journal's editor is Jeff L. Caswell, Pathology Professor at the University of Guelph. It has been in publication since 1964 and is currently published by SAGE Publications, in association with the American College of Veterinary Pathologists, the European College of Veterinary Pathologists, and the Japanese College of Veterinary Pathologists.
In many legal jurisdictions, the manner of death is a determination, typically made by the coroner, medical examiner, police, or similar officials, and recorded as a vital statistic. Within the United States and the United Kingdom, a distinction is made between the cause of death, which is a specific disease or injury, versus manner of death, which is primarily a legal determination versus the mechanism of death which does not explain why the person died or the underlying cause of death and can include cardiac arrest or exsanguination. Different categories are used in different jurisdictions, but manner of death determinations include everything from very broad categories like "natural" and "homicide" to specific manners like "traffic accident" or "gunshot wound". In some cases an autopsy is performed, either due to general legal requirements, because the medical cause of death is uncertain, upon the request of family members or guardians, or because the circumstances of death were suspicious.
Abul K. Abbas is an American pathologist at University of California San Francisco where he is Distinguished Professor in Pathology and former chair of its Department of Pathology. He is senior editor of the pathology reference book Robbins and Cotran Pathologic Basis of Disease along with Vinay Kumar, as well as Basic Immunology, and Cellular & Molecular Immunology. He was editor for Immunity from 1993 to 1996, and continues to serve as a member of the editorial board. He was one of the inaugural co-editors of the Annual Review of Pathology: Mechanisms of Disease for issues from 2006 to 2020. He has published nearly 200 scientific papers.
Mel B. Feany is an American neuropathologist and geneticist at Brigham and Women's Hospital who researches neurodegenerative disease. She is a co-editor of the Annual Review of Pathology: Mechanisms of Disease.