Spaghetti sign (bladder)

The spaghetti sign may be seen in upper urinary tract bleeding.

It refers to the presence of a linear worm- or spaghetti-like filling defect within a contrast-opacified bladder 1,2. This linear filling defect represents blood clot extruded from the ureter and thereby moulded into a tubular shape 1,2. It is seen in patients with gross hematuria 1,2. Presence of this sign is an indication of upper urinary tract bleeding 1,2. The finding can be appreciated on intravenous urogram, retrograde pyelography, and CT in the excretory phase 1,2.

History and etymology

This sign was first described in 1981 by Funsho Komolafe, a Nigerian radiologist working at the University College Hospital, Ibadan at the time 1.

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Article information

rID: 25568
System: Urogenital
Section: Signs
Synonyms or Alternate Spellings:

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