Mindblown: a blog about philosophy.

  • Perinatologist

    An obstetrician who is a specialist in perinatology. An obstetrician-gynecologist who specializes in caring for women with high-risk pregnancies, including those involving adolescent pregnancy; women over age 35; those with medical problems, such as diabetes mellitus, hypertension, and sexually transmitted diseases; women with a personal or immediate family history of genetic disorders; and women who…

  • Perinatal mortality rate

    The number of babies born dead or who die during the period immediately after childbirth, shown per thousand babies born. The number of stillbirths (in which the gestation period was 28 weeks or more) in the first 7 days of life divided by the number of live births plus stillbirths in the same year. This…

  • Perimetry

    A measurement of the field of vision. A diagnostic test to determine the extent of the visual field. In the simplest form of perimetry, the doctor sits in front of the person being examined, who covers one eye. The doctor moves his or her hand from the side to the center of the field of…

  • Perimetritis

    Inflammation of the perimetrium. Inflammation of the membrane on the outer surface of the womb. The condition may be associated with parametritis. A localized inflammation of the peritoneum surrounding the uterus. Inflammation of the peritoneal covering of the uterus; may be associated with parametritis.  

  • Perimeter

    An instrument to measure the field of vision. The length of the outside line around an enclosed area. An instrument for mapping the absolute extent of the visual field. The patient looks steadily at a target in the center of the inner surface of the hemisphere. Objects are presented on this surface and the patient…

  • Perimenopause

    The few years before the menopause, in which oestrogen levels start to fall. A transition period leading to menopause, the cessation of menstruation. Symptoms of perimenopause usually begin in a woman’s 40s, about 3 to 5 years before her final menstrual period. The initial symptom is commonly irregular menstrual cycles. The phase prior to the…

  • Perilymph

    A fluid found in the labyrinth of the inner ear. Clear fluid in the inner ear, separating the osseous and membranous labyrinth. The fluid between the bony and membranous labyrinths of the ear.  

  • Perihepatitis

    Inflammation of the membrane round the liver. Inflammation of the membrane covering the liver. It is usually associated with abnormalities of the liver (including liver abscess, cirrhosis, tuberculosis) or in chronic peritonitis. Inflammation of the peritoneal covering of the liver, e.g., in Fitz-Hugh-Curtis syndrome. Inflammation of the membrane that envelops the liver.  

  • Perifolliculitis

    Inflammation of the skin round hair follicles. Inflammation surrounding a hair follicle.  

  • Pericystitis

    Inflammation of the structures round the bladder, usually caused by infection in the uterus. Inflammation in the tissues around the bladder, causing pain in the pelvis, fever, and symptoms of cystitis. It usually results from infection in the fallopian tubes or womb, but can occasionally arise from severe infection in a diverticulum of the bladder…

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