Related Experiment Video
Updated: Dec 23, 2025
12:52
IridiumIII Luminescent Probe for Detection of the Malarial Protein Biomarker Histidine Rich Protein-II
Published on: July 7, 2015
9.5K
Case 277: Iodide Mumps.
Ariel Drori1, Liron Yosha-Orpaz1
1From the Digestive Diseases Institute, Shaare Zedek Medical Center, 12 Shmu'el Bait St, Jerusalem 9103102, Israel (A.D.); and Department of Nephrology, Hadassah Medical Center, Jerusalem, Israel (L.Y.).
Radiology
|April 21, 2020
Summary
A dialysis patient developed neck swelling after a catheter exchange and angioplasty. CT angiography revealed a rare complication: contrast extravasation into the neck tissues.
Area of Science:
- Nephrology
- Vascular Surgery
- Radiology
Background:
- A 64-year-old female patient with end-stage renal disease requiring hemodialysis presented with neck swelling.
- Her medical history included hypertension, hyperlipidemia, diabetes mellitus, and smoking.
Observation:
- The patient underwent a dialysis catheter exchange and balloon angioplasty for superior vena cava stenosis 3 days prior to presentation.
- She developed bilateral submandibular tender masses, measuring 3-4 cm, without reported trauma or contrast allergies.
Findings:
- CT angiography demonstrated contrast extravasation into the soft tissues of the neck.
- This finding suggests a complication related to the recent vascular interventions.
Implications:
- This case highlights a rare complication of iodinated contrast extravasation following endovascular procedures in dialysis patients.
- Prompt diagnosis via CT angiography is crucial for appropriate management.
- Awareness of this potential complication is important for clinicians managing patients with end-stage renal disease undergoing vascular interventions.
Related Concept Videos
02:42Ionic Crystal Structures
16.6K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
16.6K
03:11Precipitation of Ions
29.7K
Predicting Precipitation
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
29.7K
02:34Structural Isomerism
21.3K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
21.3K
03:24Common Ion Effect
44.8K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Châtelier’s principle. Consider the dissolution of silver iodide:
44.8K
03:46Qualitative Analysis
23.5K
For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
For instance, group IV...
For instance, group IV...
23.5K
01:20Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions
2.3K
Arenediazonium substitution reactions occur when the diazonium group is substituted by various functional groups such as halides, hydroxyl, nitrile, etc. For instance, arenediazonium salts react with copper(I) salts of chloride, bromide, or cyanide to form corresponding aryl chlorides, bromides, and nitriles. These reactions are named Sandmeyer reactions. Although the mechanism of this reaction is complicated, as illustrated in Figure 1, they are believed to progress via an aryl copper...
2.3K