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Lead author Professor Sophie Scott, from University College London, said: "I'm fascinated that not only does laughter make the joke seem funnier, but that the more spontaneous the laughter, the funnier it makes the joke."
In meta-analyses reporting spontaneous passage rates, the size of ureteral stone is usually the longest measurement in the axial section or the largest measurement of the stone (4).
Mothers who have previously had preterm deliveries are considered at increased risk, but predicting spontaneous preterm birth is challenging, particularly in the cases of first-time mothers, which account for about one-third of the nearly 4 million births nationally each year.
However, spontaneous regression of an osteochondroma is extremely rare.[2] We present a case of a 9-year-old boy who complained of the anterior knee pain after trauma and was subsequently diagnosed with an osteochondroma of the distal femur that almost completely regressed within 4 years.
Computed Tomography of the Thorax (CTT) and Computed Tomography of the Neck (CTN) were ordered for further evaluation of the patient considered to have spontaneous PM.
Spontaneous intracranial hypotension is characterized by the classic triad of low cerebrospinal fluid (CSF) pressure, orthostatic headache, and brain "sag" with diffuse pachymeningeal enhancement.
Kharbanda, M.D., M.P.H., from HealthPartners Institute in Minneapolis, and colleagues compared risks for spontaneous abortion after 4vHPV in three exposure windows -- distal (16 to 22 weeks before the last menstrual period; 33 percent of participants), peripregnancy (within six weeks before the last menstrual period; 35 percent), and during pregnancy (last menstrual period through 19 weeks of gestation; 32 percent) -- among a cohort of 2,800 females 12 to 27 years of age with a pregnancy between 2008 and 2014.
Spontaneous urinoma is defined as urine extravasation through the perforation of the urinary tract caused by high hydrostatic pressure due to urinary obstruction.
However, a recently published analysis of data from the Vaccine Safety Datalink (VSD) raised concern about the potential risk of spontaneous abortion following seasonal influenza vaccination (Vaccine.
Bladder rupture in the absence of trauma (spontaneous bladder rupture) is a rare but life-threatening phenomenon, commonly associated with pelvic malignancy (1,2) and post-vaginal delivery.
Spontaneous coronary dissection is defined as a nontraumatic, noniatrogenic separation of the walls of the coronary artery [1].
Spontaneous coronary artery dissection (SCAD) is a rare but important cause of acute coronary syndrome with a spectrum of disease that can include unstable angina, acute myocardial infarction, or sudden cardiac death [1-3].