basophilic stippling


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Related to basophilic stippling: Heinz bodies, Pappenheimer bodies, target cells

basophilic stippling

Etymology: Gk, basis + philein, to love; D, stippen, to prick
the presence of punctate blue nucleic acid remnants in red blood cells, observed under the microscope on a Wright-Giemsa-stained blood film. Stippling is characteristic of lead poisoning. See also lead poisoning.

basophilic stippling

A finding in Wright-Giemsa-stained RBCs that appear as “blue” dots, spots and blots within RBCs, consisting of:
(1) RNA granules—coarse stippling due to RNA instability in young RBCs, seen in lead poisoning (lead inhibits ALA dehydrogenase and ferrochetolase, impairing haeme incorporation and inhibiting nucleotidase), defective HbC or HbE synthesis, sideroblastic or megaloblastic anaemia, thalassemia major and minor, preleukaemic states and pyrimidine 5’-nucleotidase deficiency;
(2) Aggregates of precipitated ribosomes—fine stippling, resulting in diffuse polychromasia secondary to increased RBC production in thalassemia, malabsorption and pernicious anaemia.

basophilic

staining readily with basic dyes.

basophilic bone matrix
vitamin D poisoning causes the appearance of intensely basophilic bone matrix of a distincitive pattern.
basophilic cell
see basophil cell.
basophilic enterocolitis
one of the several types of enterocolitis causing chronic diarrhea in horses characterized by fibrinous and ulcerative typhlocolitis and basophilic infiltrates in the regional mucosa and submucosa.
basophilic leukemia
basophilic rubricyte
a stage in cellular maturation of erythrocytes, between the prorubricyte and polychromatophilic rubricyte. Characterized by a narrow rim of dark blue cytoplasm and condensed nuclear chromatin in a 'cartwheel' pattern.
basophilic stippling
distinct or diffuse, fine to coarse, dark granular pattern in erythrocytes, representing aggregated ribosomes and caused by ineffective heme formation. Seen in lead poisoning, mainly in dogs and a characteristic of active erythropoiesis in sheep and cattle.

stippling

a spotted condition or appearance, such as an appearance of the retina as if dotted with light and dark points, or the spotted appearance of the erythrocytes in basophilic stippling.

basophilic stippling
see basophilic stippling.
References in periodicals archive ?
Another feature was basophilic stippling, which were prominent in HbS disease and occasional in HbS trait.
The abnormalities seen on the smears examined revealed the presence of nucleated red cells, basophilic stipplings, Target cells, Stomatocytes and Tear drop cells.
Basophilic stippling is seen with long-term lead exposure.
Complete hemogram was done for all cases by electronic cell counter (MSQ haematology cell counter, Cergy Pontois, France), supported by manual hemocytometry and peripheral blood examination (Leishmain stain) RBC morphology regarding presence of hypochromia, microcytosis, anisocytosis, poikilocytosis, sickle cells, target cells, polychromasia, basophilic stippling and other inclusion bodies were also assessed.
Tests revealed microcytic anemia, moderate basophilic stippling, and no identifiable source of blood loss.