Patologin

Patologin, or pathology, is the medical discipline concerned with the study of disease, its causes, mechanisms, and effects on the body. It seeks to understand how diseases develop at the cellular and tissue level and how these changes can be detected and interpreted to reach a diagnosis. The field combines anatomical pathology, which examines tissues, organs, and whole bodies, with clinical pathology, which analyzes laboratory specimens such as blood, urine, and cerebrospinal fluid. It also includes subfields such as molecular pathology, cytopathology, forensic pathology, and experimental pathology.

Pathologists use a range of techniques to identify disease, including histology and cytology to examine cells and tissues, microbiology to detect infectious agents, immunohistochemistry to characterize proteins, molecular testing to identify genetic alterations, and advanced imaging and electron microscopy for detailed study. Autopsies play a key role in understanding disease processes and confirming or clarifying clinical diagnoses; diagnostic reports guide treatment decisions and prognosis. In many health systems, pathology acts as the medical laboratory and as the clinical consultant to patient care teams.

Education and training typically involve completing a medical degree followed by a residency in pathology and board certification. Pathologists may specialize in areas such as surgical pathology, hematopathology, neuropathology, or cytopathology, and may participate in research, education, and quality assurance.

Historically, pathology developed from early anatomical studies and the work of physicians such as Giovanni Battista Morgagni and Rudolf Virchow, with major advances in microscopy and later in molecular biology shaping modern practice. Today, pathology remains essential to diagnosis, disease classification, and the development of targeted therapies and personalized medicine.