| Thumbprint sign | |
|---|---|
 | |
| Lateral radiograph showing the "thumb sign". The diagnosis of epiglottitis was confirmed on subsequent imaging and laryngoscopy. The patient recovered following treatment with prednisone and ceftriaxone | |
| Differential diagnosis | epiglottitis or intestinal ischemia |
In radiology, the thumbprint sign, or thumbprinting, is a radiologic sign found on a radiograph that suggests the diagnosis of either epiglottitis or intestinal ischemia.
In a lateral C-spine radiograph, the sign is caused by a thickened free edge of the epiglottis, which causes it to appear more radiopaque than normal, resembling the distal thumb.
In an abdominal radiography, thumbprinting has an appearance of thumbs protruding into the intestinal lumen, and is caused by thickened edematous mucosal folds.[1] Abdominal thumbprinting is a non-specific finding, though one potential cause is intestinal ischemia.[2]
References
[edit]- ^ Page 111 in:Elizabeth D Agabegi; Agabegi, Steven S. (2008). Step-Up to Medicine (Step-Up Series). Hagerstwon, MD: Lippincott Williams & Wilkins. ISBN 978-0-7817-7153-5.
- ^ Acute epiglottitis at eMedicine
External links
[edit]
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction