ring sign

A term referring to the appearance by CT urography or by intravenous pyelography in which radiocontrast outlines sloughing (detached) renal papillae in papillary necrosis, which often have a triangular shape

ring sign

Imaging Annular filling defect(s) in the renal calices by IVP, which correspond to necrotic sloughed renal papilla, seen in analgesic abuse, papillary necrosis, sickle cell anemia. See Analgesic abuse, Obstructive uropathy, Papillary necrosis, Sickle cell anemia.
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5,6,7) Varied appearances like "winding highway" or "parallel lines", "railway track"sign, "3 line" or "4 line" sign on longitudinal scan and doughnut or target sign, ring sign, bull's eye appearance on transverse scan had been reported in cases of ascariasis.
Keywords: True exfoliation, Capsule, Cataract, Phacoemulsification, Double ring sign.
We report a rare case of per operative unilateral spontaneous idiopathic splitting of the anterior lens capsule signified by the double ring sign which eventually lead to a spontaneous and complete separation of the superficial lamina of the anterior capsule (true exfoliation) in a 45 year old female.
As the capsulorhexis was performed the surgeon noted a double ring sign signifying the splitting of the anterior capsule into a superficial and deep lamina.
The hall mark of splitting of the anterior capsule during lens surgery is the appearance of double ring sign on the anterior capsule during capsulorhexis.
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Scaphoid ring sign which is progressive flexion and foreshortening of the scaphoid was also seen.
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In fall of 2012 came the "Genuine Well-Being" store, which introduced more contemporary decor and signage, including ceiling ring signs designating each section of the store, such as beauty, food, home care, wellness and seasonal.
The new decor and signage include ceiling ring signs that identify each section of the store--such as beauty, food, home care, wellness and seasonal--as well as lighting fixtures and brand headers across the beauty department, which now has almost a department store look.