Lab test interpretation
Stool Microscopy: Round Elements in Lugol's Prep
A diagnostic challenge in stool microscopy: round elements were found in a Lugol's solution preparation from an elderly patient. What could they be?
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.
Hematology
Disseminated Candidiasis in Peripheral Blood Smear
Peripheral blood smear in a child with disseminated candidiasis: phagocytosis of Candida cells by neutrophils, toxic granulation of the cytoplasm.
Lab test interpretation
Leptotrichia Bacteria in Urine Sediment: Microscopic Analysis
Morphological features of Leptotrichia (Leptothrix) bacteria in urine sediment microscopy: identification of filamentous bacteria in a native preparation.
Parasitology
Microscopy of Opisthorchis Eggs in Feces by Concentration Method
Microscopic detection of Opisthorchis felineus eggs in feces using the formalin-ether concentration method. Diagnosis of opisthorchiasis in seropositive patients.
Lab test interpretation
Renal Epithelial Cells in Urine Sediment: Morphology
Renal tubular epithelial cells in urine sediment: morphological features, microscopic identification, and clinical significance in kidney diseases.
Oncohematology
Hyperleukocytosis and Promonocytes in Acute Leukemia
Clinical case of leukemia in a 73-year-old patient: hyperleukocytosis up to 131×10⁹/L and 77% promonocytes in peripheral blood. Cell morphology in the smear.
Lab test interpretation
Charcot-Leyden Crystals in Infant Coprogram: A Case Study
Charcot-Leyden crystals detected during stool microscopy in a 4-month-old infant. This article discusses the diagnostic significance of this eosinophilic inflammation marker.
Hematology
Plasmacyte or Plasmacytoid Lymphocyte: Blood Smear Challenge
A morphological hematology exercise: identify which numbered cell in the blood smear is a plasmacytoid lymphocyte and which is a plasma cell.
Lab test interpretation
Urine Amylase Determination by Caraway Method in Pancreatitis
Examples of sharp increases in urine diastase and blood amylase post-holidays. Features of 1:10 and 1:100 urine dilution in the amyloclastic analysis method.
Laboratory methods
Impact of Hemolysis on AST Levels in Biochemistry
Analysis of preanalytical error: how unnoticed sample hemolysis leads to falsely elevated AST in blood biochemistry and erroneous suspicion of hepatitis.
Lab test interpretation
Coprogram Exercise: Identifying a Spiral Structure in Stool
A diagnostic exercise in stool microscopy. A student found an unusual spiral structure in a sample. Try to determine the nature of this finding.
Lab test interpretation
Clarithromycin Crystalluria in General Urinalysis
A clinical case of drug-induced crystalluria due to clarithromycin: macroscopic appearance and crystal morphology in urine sediment.