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hemosiderin

hemosiderin

1 9.9
A brown substance in body tissues formed when blood breaks down, often after bleeding
  • noun
  • /ˌhiːmoʊˈsaɪdərɪn/
  • Specialized
translation icon : hemosiderina
  • In cases of chronic bleeding, iron overload often leads to the accumulation of hemosiderin in various organs.
  • hemosiderin pigment
  • macrophages with hemosiderin

Examples

  • It presents with recurrent hemorrhage and accumulation of hemosiderin in lung parenchyma.

    Academic text (2007)
  • Pigmented villonodular synovitis typically demonstrates low signal intensity because of the presence of hemosiderin, and bony erosion is typically seen.

    Academic text (2003)
  • Note the areas of high attenuation caused by hemosiderin deposits.

    Academic text (2003)
  • Hemosiderin was seen in the lesion.

    Academic text (2003)
  • There were numerous hemosiderin-laden macrophages in alveolar spaces.

    Academic text (2007)
  • GCRG is associated with a greater degree of osteoid formation, hemorrhage, hemosiderin deposition, and inflammation.

    Academic text (2003)
  • Areas of abundant hemosiderin pigment and cleft-like pseudoglandular spaces were seen (Figure 2).

    Academic text (2003)
  • The minor amount of hemosiderin pigment documented during pathological examination was not sufficient to indicate a hemorrhage or hematoma.

    Academic text (1996)
  • In addition to diffuse cholesterol granulomas, multinucleate giant cells, eosinophils, fibroblasts, and a small amount of hemosiderin pigment were noted to be present.

    Academic text (1996)
  • The fibrohistiocytic lesion contains epithelioid and giant multinucleated cells, pseudoglandular clefts, and abundant hemosiderin (H&E; original magnification x 10).

    Academic text (2003)

Surface Forms

hemosiderin singular
hemosiderins plural

Morphology

hemosiderin = siderin (opaque) = hemo + sider + in

Formed from specialized combining forms ('hemo-' and 'siderin'); these elements are technical and not transparent to an average B1 learner.

Etymology

Hemosiderin comes from parts meaning 'blood' and 'iron': hemo- 'blood' (seen in hemoglobin) and sider- 'iron'. It is a brown pigment made when iron from broken blood builds up in body tissues, which is why the name literally means 'blood-iron'.