GIF
Radiology Signs
Comb sign - seen in active Crohn’s disease. It describes prominent mesenteric vessels extending towards inflamed segments of small bowel like the teeth of a comb. The appearance is due to a combination of vascular distension and mesenteric fibrofatty proliferation. It can be seen on both CT and MRI.
Optic nerve glioma | Radiology Case | Radiopaedia.org
Optic nerve gliomas are relatively uncommon tumors, with variable clinical course and often seen in the setting of neurofibromatosis type I (NF1). MRI is the modality of choice to diagnosis and assessment of the posterior extent of the tumour. T1: enlargement, often iso to hypointense compared to the contralateral side T1 C+ (Gd): enhancement is variable http://radiopaedia.org/articles/optic-nerve-glioma
Rapunzel syndrome is a rare presentation of trichobezoar or gastric ‘hair ball’ where there is a tail like extension of the hair ball into the small bowel through the pylorus causing gastric outlet obstruction. Human hair (especially the long female hair) is resistant to digestion as well as peristalsis. So they tend to stay in stomach and over a period of time form larger ‘hair ball’. http://radiopaedia.org/articles/rapunzel-syndrome
achondroplasia
Achondroplasia. Note squaring of the iliac wings (tombstone pelvis), flattening of the acetabular angles (yellow arrows), genu varum deformities (white arrows) with widened but shorter femurs and flaring of the metaphyses (green arrow). Inner pelvis is shaped like a champagne glass. - See more at: http://www.learningradiology.com/archives2014/COW%20591-Achondroplasia/achondrocorrect.html#sthash.k0qQYsee.dpuf
Butterfly vertebra | Radiology Case | Radiopaedia.org
A butterfly vertebra is a type of vertebral anomaly and results from the failure of fusion of the lateral halves of the vertebral body because of persistent notochondal tissue between them. The involved vertebral body is widened, and the bodies above and below the butterfly vertebra adapt to the altered intervertebral discs on either side by showing concavities along the adjacent endplates. More to see: http://radiopaedia.org/articles/butterfly-vertebra
Phocomelia is an extremely rare congenital skeletal disorder that characteristically affects the limbs. It can affect either the upper limbs or lower limbs or both. Phocomelia is also a descriptive term to describe the characteristic limb anomalies occurring with its associated conditions. Derived from the Greek words phoco meaning seal and melia meaning limb. http://radiopaedia.org/articles/phocomelia
Cleidocranial dysostosis | Radiology Case | Radiopaedia.org
Cleidocranial dysostosis (CCD) is a skeletal dysplasia with predominant membranous bone involvement. It carries an autosomal dominant inheritance. hypoplasia / aplasia of lateral clavicle (absent clavicles): may have two separate hypoplastic segments supernumerary ribs hemivertebrae with spondylosis small and high scapulae http://radiopaedia.org/articles/cleidocranial-dysostosis
Steeple sign - croup | Radiology Case | Radiopaedia.org
The steeple sign refers to tapering of the trachea superiorly on a frontal chest radiograph. It is remaniscient of a church steeple and is suggestive of croup. a corresponding lateral x ray would show narrowing of subgottic trachea and ballooning of hypopharynx. roup, also called acute laryngotracheobronchitis is due to viral infection of the upper airway by parainfluenza virus or respiratory syncytial virus (RSV). Read more: http://radiopaedia.org/articles/croup
Life in the Fast Lane • LITFL
Left-sided extradural hemorrhage (the lenticular lesion adjacent to the skull) Other findings: left-sided extracranial hematoma mild deviation of the falx suggesting early midline shift loss of the the usual sulcal appearance also suggests a ‘tight’ brain (raised intracranial pressure)
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