Items tagged “signs”

47 results found
Case

Dense cerebellum sign

 Diagnosis certain
Dr Jan Frank Gerstenmaier
Published 20 Apr 2013
95% complete
CT
Case

Disappearing basal ganglia sign

 Diagnosis certain
Dr Nafisa Shakir Batta
Published 05 Sep 2013
98% complete
MRICT
Article

CT comma sign

The CT comma sign is a characteristic sign seen in head trauma. It is the presence of concurrent epidural and subdural hematomas, which gives the characteristic appearance of this sign as a "comma" shape.
Article

Shmoo sign

Shmoo sign refers to the appearance of a prominent, rounded left ventricle and dilated aorta on a plain AP chest radiograph giving the appearance of Shmoo, a fictional cartoon character in the comic strip Li'l Abner, which first appeared in 1948. This sign is indicative of left ventricular enlar...
Case

Liver hemangioma - with light bulb sign

 Diagnosis probable
Dr Abhinav Ranwaka
Published 05 Dec 2013
56% complete
MRICT
Article

Snowcap sign (avascular necrosis)

Snowcap sign or snowcapping is defined as the appearance of dense sclerosis over the head of humerus or femur in cases of avascular necrosis as seen on plain radiographs, which resembles a snowcapped mountain.
Article

Sandwich sign (Marchiafava-Bignami disease)

Sandwich sign of Marchiafava-Bignami disease is described as the appearance due to the involvement of central layers of the corpus callosum. T2 and FLAIR hyperintensities are seen in the central region of body and splenium of corpus callosum with sparing of peripheral dorsal and ventral layers ...
Article

Bilateral adrenal gland hyperenhancement

Bilateral adrenal gland hyperenhancement or intense adrenal enhancement may be a feature of hypotension and forms part of the CT hypoperfusion complex. Adrenal gland hyperenhancement has been described in pediatric and small adult series or individual cases of hemorrhagic shock, pancreatitis, s...
Case

Coin lesion: lung adenocarcinoma

 Diagnosis almost certain
Dr Henry Knipe
Published 23 Jun 2014
70% complete
X-rayCT
Article

Double axillary pouch sign

The double axillary pouch sign is a collection of fluid between a torn anteroinferior glenoid labrum and the glenoid rim, giving the appearance of a second axillary pouch. The sign is seen best with MR arthrography on the coronal view, and is considered by some, a very specific sign for an ante...
Case

Post-traumatic posterior tibial artery pseudoaneurysm

Hypoechoic collec...
 Diagnosis certain
Dr Sameer Peer
Published 22 Jul 2015
94% complete
Ultrasound
Case

H-shaped vertebra mechanism: illustration

 Diagnosis not applicable
Dr Matt Skalski
Published 25 Mar 2016
54% complete
Diagram
Article

Higoumenakis sign (clavicle)

Higoumenakis sign is the unilateral enlargement of the sternal end of the clavicle in patients with late congenital syphilis. Pathology Treponema pallidum becomes readily localized in the lymphatic spaces and may remain in the connective tissues without manifestation in childhood. Through mech...
Case

Beak sign of aortic dissection (annotated image)

 Diagnosis certain
Dr Vincent Tatco
Published 06 Jun 2016
72% complete
Annotated image
Article

Sliver sign (patella)

The sliver sign refers to a curvilinear intra-articular osteochondral fragment in the knee joint on conventional knee radiographs. In the context of acute knee trauma and in association with joint effusion this sign is highly predictive of a recent transient lateral patellar dislocation 1. Path...
Article

Double Oreo cookie sign (glenoid labrum)

The double Oreo cookie sign refers to the presence of two hyperintense lines in the superior glenoid labrum, one of which represents a superior labral tear and the other a physiological sublabral recess 1, 2. This pattern is likened to an Oreo cookie with two layers of (white) cream and three l...
Case

Mount Ararat (Rorschach radiology)

 Diagnosis not applicable
Dr Narek Matinyan
Published 28 Apr 2017
34% complete
MRIPhoto
Case

Heart appearance of benign prostate hyperplasia (Rorschach radiology)

 Diagnosis not applicable
Dr Narek Matinyan
Published 19 Mar 2018
42% complete
MRI
Case

Triquetral fracture - pooping duck sign

 Diagnosis certain
Dr Matt Skalski
Published 07 Dec 2017
91% complete
X-rayDiagram
Article

Pooping duck sign

Pooping duck sign indicates the presence of a triquetral fracture, where an avulsed fracture fragment from the dorsal cortex of the triquetrum projects along the dorsal aspect of the osseous structures of the wrist. In this sign, the fracture fragment represents the poop dorsal to the duck. The ...

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