Laboratory methods
Errors in Ziehl-Neelsen Carbol Fuchsin Preparation
An analysis of an error in preparing Ziehl-Neelsen carbol fuchsin stain: why the dye solution unexpectedly turned green. A common lab mistake.
Articles
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.
Oncohematology
Bone Marrow Dynamics in Acute Lymphoblastic Leukemia
A case of acute lymphoblastic leukemia: total blastosis in bone marrow aspirate and morphological picture of remission with dyserythropoiesis on prednisone.
Hematology
Poikilocytosis Post-Splenectomy: Acanthocytes and Codocytes
Erythrocyte morphology after splenectomy: identification of codocytes and differential diagnosis of acanthocytes in a peripheral blood smear.
Parasitology
Cystoisospora belli Oocysts in Stool: Isosporiasis Diagnosis
Laboratory diagnosis of isosporiasis: morphology of Cystoisospora belli oocysts in stool, modified Ziehl-Neelsen staining, and coccidian differentiation.
Parasitology
Helminth Eggs in Coproscopy: A Comparative Atlas
Comparative morphology and sizes of trematode, cestode, and nematode eggs in copro-ovoscopy. Microphotographs of helminth eggs at a uniform scale for the laboratory.
Oncohematology
Mantle Cell Lymphoma Leukemia: Blood Smear Findings
Clinical case of lymphoma leukemization: hyperleukocytosis 153×10⁹/L, over 90% atypical lymphoid cells with cleaved nuclei and nucleoli in the blood smear.
Hematology
Neutrophil Vacuolization in Peripheral Blood Smear
Severe cytoplasmic vacuolization of neutrophils in a blood smear from a surgical patient: morphology in severe bacterial infection.
Lab test interpretation
Yeast Fungi and Pseudomycelium in Urine Sediment
Microscopy of urine sediment in candiduria: detection of spores, pseudomycelium of Candida yeast fungi, and squamous epithelial cells in a female patient.
Lab test interpretation
Microscopy of Flora Smear: Differential Diagnosis of Trichomonads
Diagnostic exercise on microscopy of vaginal flora smear. Determine whether trichomonads or other cellular elements are present in the sample.
Parasitology
Enterobius vermicularis Eggs in Stool: Diagnosing Enterobiasis
A case of Enterobius vermicularis pinworm eggs found in a child's stool despite a negative perianal swab. Features of laboratory diagnosis.
Hematology
Differentiation of Atypical Cells in Blood Smear
Clinical case: differential diagnosis of cells in a blood smear from a 45-year-old man during a medical examination. Hematology analyzer data and microscopy.
Oncohematology
CMML Transformation to Acute Monoblastic Leukemia: A Case
A clinical case of blastic crisis in CMML: rapid hyperleukocytosis, monoblast morphology in a blood smear, and flow cytometry data.