haemosiderin


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Related to haemosiderin: hemosiderosis

haemosiderin

haemosiderin

An iron-storing complex primarily composed of ferritin, present in highest concentrations in macrophages, which accumulates in response to haemorrhage. The term is included here to flag the differences in pronunciation.
 
Medspeak-UK—HEY mow sih dur inn.
 
Medspeak-US—HE mow sih dur inn.

he·mo·sid·er·in

(hē'mō-sid'ĕr-in)
A yellow or brown protein produced by phagocytic digestion of hematin; found in most tissues, but especially in the liver; at higher levels, it stains blue with Perls Prussian blue stain.
Synonym(s): haemosiderin.
[hemo- + G. sidēros, iron, + -in]

haemosiderin

One of the two forms in which iron is stored in the body. The bulk of the iron is stored as haemosiderin. See also FERRITIN.

haemosiderin

insoluble protein formed when fixed-tissue histiocytes ingest haematin (a haem derivative); causes haemosiderosis

he·mo·sid·er·in

(hē'mō-sid'ĕr-in)
A yellow or brown protein produced by phagocytic digestion of hematin; found in most tissues, but especially in the liver.
Synonym(s): haemosiderin.
[hemo- + G. sidēros, iron, + -in]
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References in periodicals archive ?
Also, KS lesions that have completely responded to therapy sometimes remain as hyperpigmented areas, presumably from haemosiderin deposits.
Imaging techniques for Kaposi's sarcoma
1), haemosiderin pigment, plasma cells and hyaline globules.
Kaposi's sarcoma, a south African perspective: demographic and pathological features
Thrombosed Berry aneurysm: often will have calcified rim, and haemosiderin staining on gradient echo/ SWI sequences.
Lipomas of the quadrigeminal plate: a report of two cases
Thick fibrous bands, haemosiderin pigment and signs of elastotic degeneration were seen.
Ultrasound--first imaging modality in the detection of parathyroid adenomas
In bone cyst the smears contain fresh blood, haemosiderin laden macrophages, few osteoclast and fragments of fibrous tissue.
Fine needle aspiration cytology in bone lesions
Venous-related skin changes may also develop, including hyperpigmentation in the perimalleolar region secondary to haemosiderin deposition, lipodermatosclerosis with scarring, thickening of the skin secondary to fibrosis in the dermis and subcutaneous fatty tissue, and atrophie blanche characterised by circular whitish and atrophic skin surrounded by dilated capillaries and hyperpigmentation.
A common complication of sclerotherapy is hyperpigmentation of the surrounding skin due to the deposition of haemosiderin.
Chronic venous disorders
The term superficial siderosis is used to describe the haemosiderin deposition on the surface of the brain, spinal cord, brainstem and cranial nerve leptomeninges following recurrent subarachnoid haemorrhage.
The gradient echo sequence (GRE) best demonstrates the haemosiderin deposition on the surface of the brain1 and should prompt one to search for the cause of haemorrhage in order to prevent the irreversible neurotoxic effects on the underlying cortex.
The MRI GRE is the most sensitive, (1) and demonstrates thick dark signal lining the nervous system surfaces as a susceptibility artifact due to haemosiderin.
Superficial siderosis of the central nervous system

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