Definitions for halo sign
halo sign

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1. Halo sign

   In radiology, the halo sign is a finding of a dark halo around the arterial lumen on ultrasound that suggests the diagnosis of temporal arteritis. The standard diagnostic test for temporal arteritis is biopsy; however, ultrasound and MRI show promise for replacing it.The halo sign of temporal arteritis should not be confused with Deuel's halo sign, which is a sign of fetal death.The halo sign is also understood as a region of ground-glass attenuation surrounding a pulmonary nodule on an X-ray computed tomography (CT scan) of the chest. It can be associated with hemorrhagic nodules, tumors, or inflammatory processes, but is most commonly known as an early radiographic sign of invasive pulmonary infection by the fungus species Aspergillus. In nursing, the halo sign is the result of a test to see if drainage from a head injury contains cerebrospinal fluid. When a Dextrostix or Tes-Tape test gives a positive reading for glucose, the drainage must be further tested because glucose is also found in the blood. To perform the test, the leaking fluid is dripped onto a 4x4 gauze or towel. Positive results are indicated by blood coalescing into the center, leaving an outer ring of cerebrospinal fluid.

WikidataRate this definition:0.0 / 0 votes

1. Halo sign

   In radiology, the halo sign is a finding on ultrasound that suggests the diagnosis of temporal arteritis. The standard diagnostic test for temporal arteritis is biopsy; however, ultrasound and MRI show promise for replacing it. The halo sign of temporal arteritis should not be confused with Deuel's halo sign, which is a sign of fetal death. The halo sign is also understood as a region of ground-glass attenuation surrounding a pulmonary nodule on an X-ray computed tomography of the chest. It can be associated with hemorrhagic nodules, tumors, or inflammatory processes, but is most commonly known as an early radiographic sign of invasive pulmonary infection by the fungus species Aspergillus. In nursing, the halo sign is the result of a test to see if drainage from a head injury contains cerebrospinal fluid. When a Dextrostix or Tes-Tape test gives a positive reading for glucose, the drainage must be further tested because glucose is also found in the blood. To perform the test, the leaking fluid is dripped onto a 4x4 gauze or towel. The blood should coalesce into the center, leaving a ring if cerebrospinal fluid is present.

How to pronounce halo sign?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say halo sign in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of halo sign in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of halo sign in Pythagorean Numerology is: 4

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Halo_Sign
2. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=halo sign