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[1] [2] The presence of the steeple sign supports a diagnosis of croup, usually caused by paramyxoviruses. [3] It can also be defined as the replacement of the usual squared-shoulder appearance of the subglottic area by cone-shaped narrowing just distal to the vocal cords. This is called the steeple or pencil-point sign.
Croup is typically diagnosed based on signs and symptoms after potentially more severe causes, such as epiglottitis or an airway foreign body, have been ruled out. [4] Further investigations, such as blood tests, X-rays and cultures, are usually not needed. [4] Many cases of croup are preventable by immunization for influenza and diphtheria. [5]
Projectional radiography, also known as conventional radiography, [1] is a form of radiography and medical imaging that produces two-dimensional images by X-ray radiation.The image acquisition is generally performed by radiographers, and the images are often examined by radiologists.
Because intra-articular fractures cause a joint effusion, the dorsal fat pad sign is a reliable parameter for diagnosis of elbow fractures. [17] If a joint effusion is depicted in the ultrasound, two-plane X-ray imagery is necessary to diagnose the fracture. The standard procedure is the elbow-SAFE algorithm. [18]
This is a list of mnemonics used in medicine and medical science, categorized and alphabetized. A mnemonic is any technique that assists the human memory with information retention or retrieval by making abstract or impersonal information more accessible and meaningful, and therefore easier to remember; many of them are acronyms or initialisms which reduce a lengthy set of terms to a single ...
Olecranon bursitis is a condition characterized by swelling, redness, and pain at the tip of the elbow. [1] [2] If the underlying cause is due to an infection, fever may be present. [2]
The coronoid process stabilises the elbow joint and prevents hyperflexion. [2] [3] ... X-ray at uams.edu Archived 2007-02-19 at the Wayback Machine This page ...
On a chest X-ray, the sail sign is a radiologic sign that suggests left lower lobe collapse. [1] In children, however, a sail sign could be normal, reflecting the shadow of the thymus. [2] The thymic sail sign or spinnaker-sail sign is due to elevation of the thymic lobes in the setting of pneumomediastinum. [3]