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Prehns Sign

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1. Prehn's Sign

Prehn's Sign Prehns Sign Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Prehn's Sign Prehn's Sign Aka: Prehn's Sign , Prehns Sign (...) , Prehn Sign II. Indications III. Technique Examiner elevates with hand, supporting IV. Interpretation: Positive Elevation of relieves pain in Does not offer relief in (elevation may worsen pain) V. Efficacy : 91.3% Does not exclude : 78.3% Present in more than 20% of cases VI. References Images: Related links to external sites (from Bing) These images are a random sampling from a Bing search on the term "Prehns Sign." Click on the image (or right click) to open the source website in a new browser

2018 FP Notebook

2. Prehn's Sign

Prehn's Sign Prehns Sign Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Prehn's Sign Prehn's Sign Aka: Prehn's Sign , Prehns Sign (...) , Prehn Sign II. Indications III. Technique Examiner elevates with hand, supporting IV. Interpretation: Positive Elevation of relieves pain in Does not offer relief in (elevation may worsen pain) V. Efficacy : 91.3% Does not exclude : 78.3% Present in more than 20% of cases VI. References Images: Related links to external sites (from Bing) These images are a random sampling from a Bing search on the term "Prehns Sign." Click on the image (or right click) to open the source website in a new browser

2015 FP Notebook

3. Oncologic imaging

. As these continue to be evaluated in clinical practice, the use of this technology is expected to evolve and grow. Definitions Phases of the care continuum are broadly defined as follows: ? Screening – testing in the absence of signs or symptoms of disease ? Diagnosis – testing based on a reasonable suspicion of a particular condition or disorder, usually due to the presence of signs or symptoms ? Management – testing to direct therapy of an established condition, which may include preoperative or postoperative (...) Lung cancer screening Annual low-dose CT is indicated when ALL of the following criteria are met: ? Age equal to or greater than 55 and less than or equal to 80 ? 30 or greater pack-year history* of cigarette smoking ? Current smoker or quit date within the past 15 years ? No signs or symptoms suggestive of underlying cancer Oncologic Imaging Copyright © 2019. AIM Specialty Health. All Rights Reserved. 13 ? No health problems that would be expected to substantially limit life expectancy

2019 AIM Specialty Health

4. ACR–ASNR–SPR Practice Parameter for the Performance and Interpretation of Cervicocerebral Computed Tomography Angiography (CTA)

venography. The equipment and contrast used for these examinations is the same. The scan protocols differ in the time delay to scanning following the injection of contrast. The written or electronic request for a cervicocerebral CTA should provide sufficient information to demonstrate the medical necessity of the examination and allow for its proper performance and interpretation. Documentation that satisfies medical necessity includes 1) signs and symptoms and/or 2) relevant history (including known (...) , Artunduaga M, Forero NP, et al. Accuracy of CT angiography for the diagnosis of vascular abnormalities causing intraparenchymal hemorrhage in young patients. Emerg Radiol. 2009;16(3):195-201. 24. Chakraborty S, Alhazzaa M, Wasserman JK, et al. Dynamic characterization of the CT angiographic 'spot sign'. PLoS One. 2014;9(3):e90431. 25. Demchuk AM, Dowlatshahi D, Rodriguez-Luna D, et al. Prediction of haematoma growth and outcome in patients with intracerebral haemorrhage using the CT-angiography spot sign

2019 American Society of Neuroradiology

6. Scrotal pain and swelling

should be performed in all male patients presenting with abdominal pain. If testicular torsion or torsion of an appendage of the testis or epididymis is suspected, the person should be admitted immediately to urology or paediatric surgery. The man or boy should be examined for: Position of the swelling in relation to the testis. Tenderness. Testicular lie. Size of the testis. Consistency of the swelling. Lymphadenopathy or an abdominal mass. Prehn sign. Transillumination. Features of inguinal hernia (...) or transverse). Size of the testis (may be enlarged with a testicular tumour). Symmetry of the testes, (in torsion the epididymis may be located anteriorly). Tenderness (present in torsion and epididymo-orchitis). Consistency of the swelling (for example, solid with testicular cancer, soft with a hydrocele). Lymphadenopathy or an abdominal mass. Prehn sign (relief of pain with elevation of the testes) — may suggest epididymitis, but does not rule out testicular torsion. Transillumination (indicative

2019 NICE Clinical Knowledge Summaries

7. An Accurate Diagnostic Pathway Helps to Correctly Distinguish Between the Possible Causes of Acute Scrotum (PubMed)

and laboratory parameters that may help to distinguish between genital/paragenital infection and acute testicular torsion.Over half (58.4%; 257/440) of the patients were diagnosed with genital/paragenital infection, 11.8% (52/440) with chronic testicular pain, 9.5% (42/440) with acute testicular torsion, 4.3% (19/440) with a testicular cancer, and 2.5% (11/440) with symptomatic distal ureterolithiasis. In multivariate analysis, a positive Prehn's sign was predictive of testicular torsion, whereas fever

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2018 Oman medical journal

8. Sleep as a Model to Understand and Manipulate Cortical Activity in Order to Promote Functional Recovery After Stroke

: Transcranial Alternating Current Stimulation (tACS) TACS stimulation involves two electrodes placed on either side of the desired site of cortical stimulation. The mode of stimulation used in this experiment is identical to previous studies using tACS in sleep ( Marshall et al., 2006; Prehn-Kristensen et al., 2014 ). Stimulation follows a sinusoidal pattern from 0 to 260 μA. This pattern is delivered at 0.75 Hz and is repeated for 225 cycles; a total of 5 minutes of stimulation. This 5 minute pattern (...) Perceptual Disorders Neurobehavioral Manifestations Neurologic Manifestations Nervous System Diseases Signs and Symptoms

2017 Clinical Trials

9. ACR-ASNR Practice Guideline for the Performance and Interpretation of Cervicocerebral Computed Tomography Angiography (CTA)

. SPECIFICATIONS OF THE EXAMINATION The written or electronic request for a cervicocerebral CTA should provide sufficient information to demonstrate the medical necessity of the examination and allow for its proper performance and interpretation. Documentation that satisfies medical necessity includes 1) signs and symptoms and/or 2) relevant history (including known diagnoses). Additional information regarding the specific reason for the examination or a provisional diagnosis would be helpful and may at times (...) . Prokop M, Waaijer A, Kreuzer S. CT angiography ofthe carotid arteries. Jbr-Btr 2004;87:23-29. 19. Randoux B, Marro B, Marsault C. Carotid Artery Stenosis: Competition between CT Angiography and MR Angiography. AJNR 2004;25:663-664; author reply 664. 20. van Prehn J, Muhs BE, Pramanik B, et al. Multidimensional characterization of carotid artery stenosis using CT imaging: a comparison with ultrasound grading and peak flow measurement. Eur J Vasc Endovasc Surg 2008;36:267-272. 21. Berne JD, Norwood SH

2010 American Society of Neuroradiology

10. What is the symptomology of testicular torsion?

Active cremasteric reflex Cold weather Involved testicle painful to palpation; frequently elevated in position when compared to the other side Horizontal lie of the testicle Enlargement and edema of the testicle; edema involving the entire scrotum Scrotal erythema Ipsilateral loss of the cremasteric reflex Usually, no relief of pain upon elevation of scrotum (elevation may improve the pain in epididymitis [Prehn sign]) Fever (uncommon) History includes a sudden onset of severe unilateral scrotal pain (...) becomes red and oedematous.Pain is not relieved by elevating the twisted testis - negative Prehn's sign. The cremasteric reflex is absent. A neonatal torsion may be without symptoms and simply present as a hard, enlarged testes in a blue scrotum. They tend to present late, and it is more difficult to preserve the testes. Of boys presenting with acute scrotal swelling only 25% will have torsion of the testis. References Zwanger M, Rupp T. Testicular Torsion. eMedicine. If diagnosed early, a near 100

2002 TRIP Answers

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