
Differential Diagnosis of Thrombocytosis in Complete Blood Count
What to do when thrombocytosis exceeds 450,000/µL: common causes of reactive platelet elevation, the role of ferritin and CRP, and indications for genetic tests.
Blood and bone marrow morphology, clinical cases and diagnostic algorithms. Most of the library is in Russian; the English section is growing.
Most of our material is written in Russian — that is the working language of the community. A few pieces exist in English; the rest of the library is one click away and the photographs need no translation.

What to do when thrombocytosis exceeds 450,000/µL: common causes of reactive platelet elevation, the role of ferritin and CRP, and indications for genetic tests.

A clinical case detailing severe consequences of Rh factor and anti-erythrocyte antibody misidentification before blood transfusion, and legal liability.

Exploring non-pancreatic hyperamylasemia, the role of salivary gland involvement and macroamylasemia, and a clinical algorithm for patient evaluation.

Urine sediment in paroxysmal nocturnal hemoglobinuria: microscopy of hemosiderin clumps in epithelial cells and a hyaline cast during hemolysis.

A clinical case of granulocytic anaplasmosis: Anaplasma phagocytophilum morulae found in neutrophils on a blood smear, along with thrombocytopenia and hyponatremia.

An illustrated atlas of erythrocyte morphology: main forms of poikilocytes and variants of anisocytosis in peripheral blood smear microscopy.

Explore the morphological features of monocytes and lymphocytes in peripheral blood smears. Learn about leukocyte microscopy in laboratory diagnostics.

What to do if MCHC is elevated above 375 g/L in CBC: causes of false elevation, cold agglutination, sample warming, and blood smear evaluation.

Clinical case review: isolated elevation of ALT, AST, and gamma-GT in a 36-year-old woman. Calculation of de Ritis ratio, search for causes, and examination plan.

Oncohematology clinical case: patient with splenomegaly, leukocytosis, and atypical lymphocytes in blood smear, BRAF mutation negative. Choose diagnosis.

A clinical case of chronic neutrophilic leukemia: hyperleukocytosis, granulocyte hyperplasia, and phagocytosis of nuclear debris by bone marrow macrophages.

A clinical case of severe secondary erythrocytosis in a patient with a heart defect: hemoglobin level 258 g/L, hematocrit 76%, and erythrocytes 7.60×10¹²/L.