Oncohematology
Football-Ball Chromatin in Chronic Lymphocytic Leukemia
Characteristic clumped nuclear chromatin structure of lymphocytes, resembling a football, in a blood smear from chronic lymphocytic leukemia (CLL).
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.
Parasitology
Henneguya salminicola Myxosporidia in Omul Muscle Tissue
A case of Myxosporidia (presumed Henneguya salminicola) found in omul muscle: macroscopic view of cysts and microscopic examination of parasite spores.
Oncohematology
Erythroid Dysplasia: Signs of Dyserythropoiesis in MDS
Morphological criteria for erythroid dysplasia in myelodysplastic syndrome: multinuclearity, pyknosis, nuclear budding, and basophilic stippling.
Parasitology
Microscopic Diagnosis of Helminth Eggs and Protozoa
Microscopic features of parasites in stool and blood: eggs of Schistosoma, Ascaris, pinworms, hookworms, dwarf tapeworms, Giardia cysts, and trypanosomes.
Lab test interpretation
Fresh Erythrocytes in Urine Sediment During Hematuria
Microscopy of urine sediment in massive hematuria: an entire field of view covered with unchanged (fresh) erythrocytes in a patient with a bladder tumor.
Lab test interpretation
Methotrexate Crystals in Urine with Acute Kidney Injury
Detection of methotrexate crystals in urine sediment with acute kidney injury after high-dose therapy. Features of sediment microscopy.
Laboratory methods
False-Positive HIV PCR Result Due to Contamination
Analysis of a case involving a false-positive HIV PCR test result caused by amplicon contamination. Exploring the reasons for zoning violations in a PCR laboratory.
Lab test interpretation
Amyloid Bodies in Prostatic Secretion: Microscopic Analysis
Microscopy of native prostatic secretion: morphology of amyloid bodies, mucus, and cellular elements at 40x magnification. A guide for laboratory hematology.
Parasitology
Schistosoma mekongi: Egg Morphology and S. japonicum Differences
Learn about Schistosoma mekongi: egg morphology with a short lateral spine, stool microscopy, and differential diagnosis from Schistosoma japonicum.
Oncohematology
Blast Morphology in Blood Smears in Acute Leukemia
Key morphological features of blast cells in peripheral blood smears in acute leukemia: evaluating nuclear chromatin and cytoplasm structure.
Lab test interpretation
Sulfadiazine Crystals in Urine with Acute Kidney Injury
Morphology of sulfadiazine crystals in urine sediment during acute kidney injury: bright-field and polarized light microscopy of a native preparation.
Clinical cases
Cryptococcal Thyroiditis: Thyroid Gland Cytology
Cytological features of cryptococcal thyroiditis in a thyroid aspirate: follicular epithelium, lymphocytes, and histiocytes with cryptococci.