Definition

Noun: * An abnormal red blood cell containing granules of iron not bound in hemoglobin: A siderocyte is a type of erythrocyte (red blood cell) that contains visible, non-hemoglobin iron granules, typically observable under a microscope after special staining. Its presence usually indicates a disorder in iron metabolism or hemoglobin synthesis.

Usage Examples

• Noun:
  • The pathologist identified several siderocytes in the blood smear, suggesting a possible iron utilization disorder.
  • The presence of siderocytes is a key diagnostic feature in some forms of sideroblastic anemia.
  • Under the microscope, the siderocyte was distinguished by its characteristic blue-staining iron granules.

Advanced Usage

• Clinical Significance: The detection of siderocytes is primarily a laboratory finding used in hematology to diagnose and monitor certain anemias, particularly sideroblastic anemias where the bone marrow produces abnormal red blood cells with iron-loaded mitochondria.
• Staining Technique: Siderocytes are typically identified using a Prussian blue or Perls' stain, which specifically colors iron deposits blue, making them visible under light microscopy.

Variants and Related Words

• Sideroblastic (adj): Pertaining to or characterized by the presence of sideroblasts (nucleated red blood cell precursors with iron granules). Example: .
• Sideropenia (n): A deficiency of iron in the body.
• Erythrocyte (n): The technical term for a mature red blood cell, which is the cell type in which a siderocyte is an abnormal form.

Synonyms

• Iron-laden erythrocyte: A descriptive synonym emphasizing the cell's iron content.
• Pathological red blood cell with iron inclusions: A more general clinical description.

Notes on Meaning

This is a highly specialized medical and scientific term with essentially one precise meaning. It is not used in everyday language and does not have idioms or phrasal verbs associated with it. Its usage is confined to fields like hematology, pathology, and clinical medicine.

Noun

1. an abnormal red blood cell containing granules of iron not bound in hemoglobin