
Atypical Mononuclear Cells in Infectious Mononucleosis
Peripheral blood smear microscopy in infectious mononucleosis: morphology of reactive lymphocytes (atypical mononuclear cells). Cell examples.
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.

Peripheral blood smear microscopy in infectious mononucleosis: morphology of reactive lymphocytes (atypical mononuclear cells). Cell examples.

Microscopy of peripheral blood smear from a 1-day-old neonate: identification of normoblasts (erythroblasts) and assessment of the physiological blood picture.

Explore the cytological signs of papillary thyroid carcinoma: papillary structures, hyperchromatic nuclear crowding, and intranuclear inclusions in biopsy samples.

An atlas of macrothrombocytes and giant platelets in peripheral blood smears. Morphological features of platelets under immersion microscopy.

Learn about identifying triple phosphate (struvite) crystals in urine sediment microscopy: causes of appearance in alkaline urine and diagnostic significance.

Cytological features of metastatic pericardial effusion in lung adenocarcinoma: glandular-like complexes and cellular polymorphism are observed.

An example of chimerism detection during erythrocyte antigen phenotyping of the Rh and Kell systems on a gel card: signs of mixed agglutination.

A clinical case of BPDCN mimicking lymphoma: cell morphology in blood smear, immunophenotyping (CD56, CD123), and molecular diagnostics.

Clinical case of metastatic pericardial effusion in sarcoma. Cytological features: polymorphism, atypical mitoses, and giant multinucleated cells.

Morphological features of Entamoeba histolytica and Entamoeba dispar cysts in stool microscopy. Routes of infection and prevention measures for intestinal amebiasis.

Learn the preanalytical rules for blood centrifugation: why wait 30–40 minutes before spinning, and how to prevent fibrin formation in serum.

A clinical case of eosinophilic leukemoid reaction. Eosinophil morphology in a blood smear with levels elevated to 66% and 9.64×10⁹/L.