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Portal:Medicine

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Medicine is the science and practice of caring for a patient, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care practices evolved to maintain and restore health by the prevention and treatment of illness. Contemporary medicine applies biomedical sciences, biomedical research, genetics, and medical technology to diagnose, treat, and prevent injury and disease, typically through pharmaceuticals or surgery, but also through therapies as diverse as psychotherapy, external splints and traction, medical devices, biologics, and ionizing radiation, amongst others.

Medicine has been practiced since prehistoric times, during most of which it was an art (an area of skill and knowledge) frequently having connections to the religious and philosophical beliefs of local culture. For example, a medicine man would apply herbs and say prayers for healing, or an ancient philosopher and physician would apply bloodletting according to the theories of humorism. In recent centuries, since the advent of modern science, most medicine has become a combination of art and science (both basic and applied, under the umbrella of medical science). While stitching technique for sutures is an art learned through practice, the knowledge of what happens at the cellular and molecular level in the tissues being stitched arises through science.

Prescientific forms of medicine are now known as traditional medicine or folk medicine, which remains commonly used in the absence of scientific medicine, and are thus called alternative medicine. Alternative treatments outside of scientific medicine having safety and efficacy concerns are termed quackery. (Full article...)

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Lung cancer is a disease of uncontrolled cell growth in tissues of the lung. This may lead to metastasis, invasion of adjacent tissue and infiltration beyond the lungs. Lung cancer, the most common cause of cancer-related death in men and the second most common in women, is responsible for 1.3 million deaths worldwide annually. The most common symptoms are shortness of breath, coughing (including coughing up blood), and weight loss. The main types of lung cancer are small cell lung carcinoma and non-small cell lung carcinoma. This distinction is important because the treatment varies; non-small cell lung carcinoma (NSCLC) is sometimes treated with surgery, while small cell lung carcinoma (SCLC) usually responds better to chemotherapy. The most common cause of lung cancer is exposure to tobacco smoke. The occurrence of lung cancer in non-smokers, who account for fewer than 10% of cases, appears to be due to a combination of genetic factors. Radon gas, asbestos, and air pollution may also contribute to lung cancer. Treatment and prognosis depend upon the histological type of cancer, the stage (degree of spread), and the patient's performance status. Possible treatments include surgery, chemotherapy, and radiotherapy. With treatment, the five-year survival rate is 14%. (More...)

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Hospital Corpsman Brian Long, of Sellersville, Pa., attempts to read a standard eye chart from twenty feet with the help of an Optical Refractor aboard the aircraft carrier USS John F. Kennedy (CV 67).

Photo credit: [1]

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  • "Capt. Della H. Raney, Army Nurse Corps, who now heads the nursing staff at the station hospital at Camp Beale, CA - NARA - 535942
    "Capt. Della H. Raney, Army Nurse Corps, who now heads the nursing staff at the station hospital at Camp Beale, CA - NARA - 535942
  • Agarplate redbloodcells edit
    Agarplate redbloodcells edit
  • Albert Edelfelt - Louis Pasteur - 1885
    Albert Edelfelt - Louis Pasteur - 1885
  • Aletta Jacobs, 1895-1905
    Aletta Jacobs, 1895-1905
  • AntigenicShift HiRes
    AntigenicShift HiRes
  • Autorecessive
    Autorecessive
  • Basal ganglia circuits
    Basal ganglia circuits
  • Beulah Ream Allen receiving the Medal of Freedom (1945)
    Beulah Ream Allen receiving the Medal of Freedom (1945)
  • Blood values sorted by mass and molar concentration
    Blood values sorted by mass and molar concentration
  • Brigid M. Balfour (1914-1994) - Restoration
    Brigid M. Balfour (1914-1994) - Restoration
  • CG Heart
    CG Heart
  • CH.SZ.Stoos Fronalpstock Sequence Rescue-Helicopter REGA 16K 16x9-R
    CH.SZ.Stoos Fronalpstock Sequence Rescue-Helicopter REGA 16K 16x9-R
  • Cesarian the moment of birth3
    Cesarian the moment of birth3
  • Child with Smallpox Bangladesh
    Child with Smallpox Bangladesh
  • Circulatory System en
    Circulatory System en
  • Complete neuron cell diagram en
    Complete neuron cell diagram en
  • Computed tomography of human brain - large
    Computed tomography of human brain - large
  • DNA Structure+Key+Labelled.pn NoBB
    DNA Structure+Key+Labelled.pn NoBB
  • DTI-sagittal-fibers
    DTI-sagittal-fibers
  • Da Vinci Vitruve Luc Viatour
    Da Vinci Vitruve Luc Viatour
  • Denis Mukwege par Claude Truong-Ngoc novembre 2014
    Denis Mukwege par Claude Truong-Ngoc novembre 2014
  • Desinsertion du muscle CO
    Desinsertion du muscle CO
  • Ebola Virus - Electron Micrograph
    Ebola Virus - Electron Micrograph
  • Eye Central Heterochromia crop and lighter
    Eye Central Heterochromia crop and lighter
  • Eye-diagram no circles border
    Eye-diagram no circles border
  • Gas mask MUA IMGP0157
    Gas mask MUA IMGP0157
  • Human arm bones diagram
    Human arm bones diagram
  • June odd-eyed-cat cropped
    June odd-eyed-cat cropped
  • Male human head louse
    Male human head louse
  • Mantoux tuberculin skin test
    Mantoux tuberculin skin test
  • Nadar - "Hermaphrodite" (Seventh Gallica image)
    Nadar - "Hermaphrodite" (Seventh Gallica image)
  • Neutrophil with anthrax copy
    Neutrophil with anthrax copy
  • Novel Coronavirus SARS-CoV-2
    Novel Coronavirus SARS-CoV-2
  • Osmotic pressure on blood cells diagram
    Osmotic pressure on blood cells diagram
  • PET-MIPS-anim
    PET-MIPS-anim
  • Pauline Gracia Beery Mack (1891-1974) (5493947511) - Restoration
    Pauline Gracia Beery Mack (1891-1974) (5493947511) - Restoration
  • Petasites hybridus inflorescence - Keila
    Petasites hybridus inflorescence - Keila
  • Phage
    Phage
  • Polydactyly 01 Lhand AP
    Polydactyly 01 Lhand AP
  • Professeur Metchnikoff, portrait du scientifique dans un laboratoire de recherche
    Professeur Metchnikoff, portrait du scientifique dans un laboratoire de recherche
  • Rembrandt - The Anatomy Lesson of Dr Nicolaes Tulp
    Rembrandt - The Anatomy Lesson of Dr Nicolaes Tulp
  • Respiratory system complete en
    Respiratory system complete en
  • Root Canal Illustration Molar
    Root Canal Illustration Molar
  • SARS-CoV-2 scanning electron microscope image
    SARS-CoV-2 scanning electron microscope image
  • Sneeze
    Sneeze
  • Steroidogenesis
    Steroidogenesis
  • Synthetic Production of Penicillin TR1468
    Synthetic Production of Penicillin TR1468
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    Tubal Pregnancy with embryo
  • Typhoid inoculation2
    Typhoid inoculation2
  • User-FastFission-brain
    User-FastFission-brain
  • Volume rendered CT scan of a pregnancy of 37 weeks of gestational age (smaller)
    Volume rendered CT scan of a pregnancy of 37 weeks of gestational age (smaller)
  • Wormian bones
    Wormian bones

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  • Da Vinci Studies of Embryos Luc Viatour
    Da Vinci Studies of Embryos Luc Viatour
  • Human skeleton back en
    Human skeleton back en
  • Human skeleton front en
    Human skeleton front en

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