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    1. Home
    2. A-Z Dictionary
    3. Letter S

    Medical terms - Letter S

    1,526 terms start with the letter S.

    • Syndrome, nervous colon

      A common gastrointestinal disorder involving an abnormal condition of gut contractions (motility) characterized by abdominal pain, bloating, mucous in stools, and irregular bowel habits with alternating diarrhea and…

    • Syndrome, Noonan (NS)

      A multifaceted genetic disorder characterized by a series of birth defects (congenital malformations) including dysmorphic (malformed) facial features, short stature after birth (postnatal growth retardation), webbing…

    • Syndrome, Osler-Rendu-Weber

      See: Hereditary hemorrhagic telangiectasia

    • Syndrome, Pagon

      See: Pagon syndrome

    • Syndrome, Pallister-Killian

      Condition with multiple malformations at birth and mental retardation due to isochromosome 12p mosaicism (an abnormal chromosome #12 in some cells)

    • Syndrome, paraneoplastic

      See: Paraneoplastic syndrome

    • Syndrome, Patau

      Trisomy 13 syndrome or three chromosome number 13s instead of the normal two. Children with this condition have multiple malformations and mental retardation due to an extra chromosome #13 Named after the late Klaus…

    • Syndrome, patellofemoral (PFS)

      The commonest cause of chronic knee pain, PFS characteristically causes vague discomfort of the inner knee area, aggravated by activity (running, jumping, climbing or descending stairs) or by prolonged sitting with…

    • Syndrome, Paterson-Kelly

      See: Plummer-Vinson syndrome

    • Syndrome, Pendred

      See Pendred syndrome

    • Syndrome, Perrault

      See: Perrault syndrome

    • Syndrome, Peter Pan

      Term coined by pop psychology author Dan Kiley in his book 'Peter Pan syndrome: Men Who Have Never Grown Up.' Peter Pan is in reference to J. M. Barrie's classic play in which a boy, Peter Pan, who refuses to grow up…

    • Syndrome, phantom limb

      See Phantom limb syndrome

    • Syndrome, Pickwickian

      The combination of obesity, somnolence (sleepiness), hypoventilation (underbreathing), and plethoric (red) face. The syndrome is so named because of the 'fat and red-faced boy in a state of somnolency' that Charles…

    • Syndrome, piriformis

      Irritation of the sciatic nerve caused by compression of the nerve within the buttock by the piriformis muscle. Typically, the pain of the piriformis syndrome is increased by contraction of the piriformis muscle…

    • Syndrome, Pisa

      A condition in which there is sustained involuntary flexion of the body and head to one side and slight rotation of the trunk so the person appears to lean like the Leaning Tower of Pisa. The Pisa syndrome is an adverse…

    • Syndrome, Poland

      A unique pattern of one-sided malformations characterized by a defect of the chest (pectoralis) muscle on one side of the body and webbing of the fingers (cutaneous syndactyly) of the ipsilateral hand (the hand on the…

    • Syndrome, polycystic ovary

      See: Polycystic ovarian syndrome

    • Syndrome, polyglandular autoimmune (PGA)

      A genetic autoimmune disease with an extraordinary array of clinical features but characterized most often by at least 2 of the following 3 findings: hypoparathyroidism -- underfunction of the parathyroid glands which…

    • Syndrome, popliteal pterygium

      See Popliteal web syndrome

    • Syndrome, post-polio (PPS)

      A constellation of symptoms and signs that appear from 20 to 40 years after the initial polio infection, and at least 10 years after what was thought to be recovery from polio It is estimated that 1.63 million Americans…

    • Syndrome, Prader-Willi

      See: Prader-Willi syndrome

    • Syndrome, premenstrual

      See Premenstrual syndrome

    • Syndrome, Proteus

      A disturbance of cell growth including benign tumors under the skin, overgrowth of the body, often more on one side than the other (hemihypertrophy), and overgrowth of fingers (macrodactyly). The syndrome is named after…

    • Syndrome, prune belly

      Partial or complete absence of the abdominal muscles so that the outlines of the intestines are visible through the thin, lax, protruding abdominal wall. The abdominal wall looks shrunken, shriveled and wrinkled like a…

    • Syndrome, radial aplasia-thrombocytopenia

      See Syndrome, TAR

    • Syndrome, Raeder's

      A distinctive syndrome of headaches, also known as cluster headache or migrainous neuralgia. The common pattern of cluster headache is termed 'episodic' and is characterized by 1-3 short attacks of pain each day around…

    • Syndrome, Ramsay Hunt

      See: Ramsay Hunt syndrome

    • Syndrome, reflex sympathetic dystrophy (RSDS)

      A condition that features a group of typical symptoms, including pain (often 'burning' type), tenderness, and swelling of an extremity associated with varying degrees of sweating, warmth and/or coolness, flushing…

    • Syndrome, Reiter

      A chronic form of inflammatory arthritis wherein the following three conditions are combined: (1) arthritis; (2) inflammation of the eyes (conjunctivitis); and (3) inflammation of the genital, urinary or…

    • Syndrome, renal, with hemorrhagic fever

      A number of diseases, also known as hemorrhagic fever, characterized by an abrupt onset of high fever and chills, headache, cold and cough, and pain in the muscles, joints and abdomen with nausea and vomiting followed…

    • Syndrome, Rendu-Osler-Weber

      See: Hereditary hemorrhagic telangiectasia

    • Syndrome, respiratory distress (RDS)

      Formerly known as hyaline membrane disease, a syndrome of respiratory difficulty in newborn infants caused by a deficiency of a molecule called surfactant. RDS almost always occurs in newborns born before 37 weeks of…

    • Syndrome, Rett

      See: Rett syndrome

    • Syndrome, Reye

      A sudden, sometimes fatal, disease of the brain (encephalopathy) with degeneration of the liver, occurs in children (most cases 4-12 years of age), comes after the chickenpox (varicella) or an influenza-type illness, is…

    • Syndrome, Ricker

      See: Myotonic dystrophy type 2

    • Syndrome, Riley-Day

      See: Familial dysautonomia.

    • Syndrome, Rothmund-Thomson

      See Rothmund-Thomson syndrome

    • Syndrome, SAPHO

      SAPHO syndrome: SAPHO syndrome is an eponym for a condition which is characterized by a combination of: > >Synovitis -- inflammation of the joint lining (synovium), typically manifest as warmth, tenderness, pain…

    • Syndrome, scalded skin

      See Scalded skin syndrome

    • Syndrome, Shprintzen

      See: Velocardiofacial syndrome

    • Syndrome, Shulman's (Eosinophilic fasciitis)

      A disease which leads to inflammation and thickening of the skin and fascia. (The fascia is a lining tissue under the skin that covers a surface of underlying tissues.) When the fascia is inflamed, the condition is…

    • Syndrome, sicca

      An autoimmune diseases, also known as Sjogren syndrome, that classically combines dry eyes, dry mouth, and another disease of the connective tissues such as rheumatoid arthritis (most common), lupus, scleroderma or…

    • Syndrome, sick sinus

      Symptoms of dizziness, confusion, fainting, and heart failure due to a problem with the sinus node of the heart, which acts as the body's natural pacemaker. If the sinus node is not functioning normally, it is reflected…

    • Syndrome, Sjogren

      See: Sjogren syndrome

    • Syndrome, Sjogren's

      See: Sjogren syndrome

    • Syndrome, Sjogren-Larsson

      The Sjogren-Larsson syndrome is a genetic (inherited) disease usually characterized by a triad of clinical findings consisting of ichthyosis (thickened fish-like skin), spastic paraplegia (spasticity of the legs) and…

    • Syndrome, Stein-Leventhal

      >Irregular or no periods >Acne >Obesity, and >Excess hair growth. All women with PCO have irregular or no menses. Women with PCO do not ovulate (do not release an egg every month). Women with PCO are at a higher risk…

    • Syndrome, Stevens-Johnson

      A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction). This disorder was not recognized until 1962 when it was described by Drs. Kok and Bruyn as a disease with the…

    • Syndrome, stiff baby

      A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction). This disorder was not recognized until 1962 when it was described by Drs. Kok and Bruyn as a disease with the…

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