Basal skull fracture should be considered in all patients with head injuries, especially those with physical signs such as otorrhea, Battle sign or periorbital ecchymoses. 1 The “halo” or “double …

The term cerebrospinal fluid (CSF) leak refers to any disruption of the arachnoid and dura that allows CSF to escape to an extradural space. CSF leaks can occur anywhere along the …

2023年8月8日 · Cerebrospinal fluid (CSF) rhinorrhea or otorrhea: “Halo” sign is the double ring pattern described when bloody fluid from the ear or nose containing CSF is dripped onto paper …

2012年11月5日 · The “halo” or “double ring sign" is a form of pillow chromatography. The blood components separate from the CSF as they move through the pillow fabric, creating a clear …

While the presence of a halo is often cited as indicating the presence of cerebrospinal fluid 2,3 an elegant study by Dula and Fales 4 published in Annals 15 years ago shows the halo sign is …

Classically, the “halo sign”—a ring appearing on a piece of fabric or paper after being exposed to CSF—was widely taught as a predictor for CSF rhinorrhea. 6, 14 However, it has become …

1993年4月1日 · Several texts have suggested that CSF will separate from blood when the mixture is placed on filter paper or other media and will produce a clinically detectable sign, which has …

Clear drainage suspicious for CSF can be grossly tested for a “halo sign.” The bloody nasal drainage is allowed to drip onto filter paper. If CSF is present, it will diffuse faster than blood …

"halo" sign: drop of fluid placed on tissue or filter paper, rapidly expanding ring of clear fluid around red blood defines positive test; CSF distinguished from local nasal secretions with …

2022年11月16日 · The diagnosis of CSF rhinorrhea requires a comprehensive clinical, laboratory, and radiographic evaluation to: (1) confirm the presence of a CSF leak through the objective …