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  2. Empty delta sign - Wikipedia

    en.wikipedia.org/wiki/Empty_delta_sign

    The empty delta sign is a radiologic sign seen on brain imaging which is associated with cerebral venous sinus thrombosis.It is usually seen on magnetic resonance imaging (MRI) or computed tomography (CT) scans with contrast.

  3. Cerebral venous sinus thrombosis - Wikipedia

    en.wikipedia.org/wiki/Cerebral_venous_sinus...

    In the first two weeks, the "empty delta sign" may be observed (in later stages, this sign may disappear). [11] The empty delta sign is characterized by enhancement of the dural wall without intra-sinus enhancement. [6] Magnetic resonance venography employs the same principles, but uses MRI as a scanning modality. MRI has the advantage of being ...

  4. List of radiologic signs - Wikipedia

    en.wikipedia.org/wiki/List_of_radiologic_signs

    Bear paw sign; Beveled edge sign; Bird of prey sign; Bite sign; Black pleura sign; Blade of grass sign (also known as Flame sign) Blumensaat's line; Bohler's angle; Bone-within-a-bone appearance; Boomerang sign; Bow tie appearance; Bowl of grapes sign; Bowler hat sign; Brim sign; Bucket handle tear; Bulging fissure sign; Bunches of grapes sign ...

  5. Empty sella sign - Wikipedia

    en.wikipedia.org/wiki/Empty_sella_sign

    The empty sella sign is a radiological finding characterized by the partial or complete filling of the sella turcica with cerebrospinal fluid (CSF), causing the pituitary gland to appear flattened or compressed against the walls of the sella. [1] This results in the sella appearing "empty" on imaging, despite the presence of a compressed ...

  6. Radiologic sign - Wikipedia

    en.wikipedia.org/wiki/Radiologic_sign

    The dark areas on both sides of the intestines indicate that air is present in both sides. This is called "Rigler's sign". A radiologic sign is an objective indication of some medical fact (that is, a medical sign) that is detected by a physician during radiologic examination with medical imaging [1] (for example, via an X-ray, CT scan, MRI scan, or sonographic scan).

  7. Pseudosubarachnoid hemorrhage - Wikipedia

    en.wikipedia.org/wiki/Pseudosubarachnoid_hemorrhage

    A pseudosubarachnoid hemorrhage is an apparent increased attenuation on CT scans within the basal cisterns that mimics a true subarachnoid hemorrhage. [1] This occurs in cases of severe cerebral edema, such as by cerebral hypoxia.

  8. Empty sella syndrome - Wikipedia

    en.wikipedia.org/wiki/Empty_sella_syndrome

    Empty sella syndrome is the condition when the pituitary gland shrinks or becomes flattened, filling the sella turcica with cerebrospinal fluid instead of the normal pituitary. [2] It can be discovered as part of the diagnostic workup of pituitary disorders, or as an incidental finding when imaging the brain.

  9. Terry-Thomas sign - Wikipedia

    en.wikipedia.org/wiki/Terry-Thomas_sign

    In radiology, the Terry-Thomas sign is a scapholunate ligament dissociation on an anteroposterior view of the wrist. [ 1 ] [ 2 ] Most commonly a result of a fall on the outstretched hand ( FOOSH ), the scapholunate ligament ruptures resulting in separation of the lunate and scaphoid bones .