#smear

• Acanthocyte — A pathologically altered erythrocyte (red blood cell) characterized by an abnormal spherical or star-like shape, displaying multiple rigid, sharp cytoplasmic protrusions (spicules) of irregular length and distribution across its membrane. This morphological change (acanthocytosis) is caused by membrane lipid abnormalities and is encountered in severe conditions such as abetalipoproteinemia, advanced liver diseases, or neuroacanthocytosis.
• Acanthocytosis — A pathological condition characterized by the presence of an abnormally high number of acanthocytes (spurred erythrocytes with rigid, irregular membrane protrusions) in the peripheral blood. This morphological anomaly is closely linked to altered lipid metabolism and cell membrane structure, serving as a major diagnostic indicator for rare hereditary disorders (such as abetalipoproteinemia or McLeod syndrome), advanced end-stage liver diseases, or neurodegenerative disorders within the neuroacanthocytosis group.
• Anisocytosis — A pathological condition characterized by the presence in the blood of cells (especially red blood cells or erythrocytes) of abnormally unequal and varied sizes; anisocytosis. Frequently identified via a peripheral blood smear examination and quantified by the RDW (red cell distribution width) parameter, it serves as a critical clinical indicator for the differential diagnosis of various types of anemia, iron deficiencies, or bone marrow disorders.
• Bacterioscopic — Relating to bacterioscopy; performed, determined, or confirmed through the direct microscopic examination of bacteria within a biological sample or culture. In a clinical context, bacterioscopic analyses (such as Gram or Ziehl-Neelsen staining) provide rapid diagnostic guidance regarding the morphology and arrangement of microbial cells before final culture results are obtained.
• Bacterioscopy — A laboratory method consisting of the direct microscopic examination of bacteria within a biological sample, secretion, or culture, usually following fixation and specific staining. Clinically, bacterioscopy represents a rapid and crucial preliminary diagnostic technique, allowing the visualization of the shape, size, arrangement, and staining properties (Gram, Ziehl-Neelsen) of pathogenic microorganisms.