
Neutrophil Hypersegmentation: Causes and a Clinical Case
A clinical case of hypersegmented neutrophils in a patient with essential thrombocythemia, high MCV, and acute bronchitis.
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.

A clinical case of hypersegmented neutrophils in a patient with essential thrombocythemia, high MCV, and acute bronchitis.

Morphological features of alveolar macrophages in native sputum and Ziehl-Neelsen stained smears. Leukocytes and cellular inclusions.

Microscopy of stool in steatorrhea: detection of fatty acids using methylene blue staining in coprogram. Morphological features in the preparation.

Signs of megakaryocyte dysplasia in MDS: microforms of Marty Feldman megakaryocytes with atypical nuclear shapes in bone marrow smears.

Microscopic view of Trichomonas vaginalis in a wet mount: a cluster of vaginal trichomonad trophozoites and their morphological features.

Morphology of triple phosphate (struvite) crystals in urine sediment under microscopy. Accumulation of prism-shaped crystals ('coffin lids') in the field of view.

Microscopic view of a bone marrow smear in visceral leishmaniasis: detection of Leishmania amastigotes in a cytological preparation.

Stool microscopy in enterobiasis: detection of characteristic asymmetric Enterobius vermicularis eggs in a child. A clinical case from the laboratory.

Morphology of solid tumor metastases in bone marrow: cytological features of neuroblastoma, rhabdomyosarcoma, and medulloblastoma in children.

A diagnostic challenge in cervical cytology: how to differentiate candidiasis from artifactual contamination during smear microscopy.

Consequences of improper analyzer calibration in clinical diagnostic laboratories: distorted test results, diagnostic errors, and laboratory personnel accountability.

Neutrophil morphology in severe bacterial sepsis: visualizing incomplete bacterial phagocytosis within leukocyte cytoplasm in a blood smear.