Parasitology
Microscopy Challenge: Finding Parasites Amidst Artifacts
A diagnostic challenge in medical parasitology: identify whether helminth eggs or protozoa are present among stool microscopy artifacts.
Tag
Analysis Artifacts
Lab test interpretation
Urine Sediment Microscopy: Differentiating Elements
Clinical case of urine analysis in a man with 0.25 g/L protein: native sediment microscopy, differential diagnosis of casts, epithelium, and artifacts.
Hematology
Elliptocyte Morphology in Peripheral Blood Smears
How to distinguish true elliptocytes in a blood smear from preparation artifacts: cell orientation features and microscopic evaluation criteria.
Oncohematology
Elongated Mature Lymphocytes in CLL Blood Smear
Morphology of elongated mature lymphocytes in a blood smear in chronic lymphocytic leukemia. Causes of spindle-shaped cell deformation and the influence of EDTA anticoagulant.
Lab test interpretation
Urine Sediment Microscopy: Suspicion of an Oocyst
Clinical case of urine sediment microscopy in an ICU patient: differential diagnosis of a suspicious inclusion, oocysts, and artifacts.
Hemostasis
Platelet Satellitism Around Neutrophils in Blood Smear
Platelet satellitism is an in vitro phenomenon in EDTA samples involving interaction with neutrophil CD16. Morphology of platelet adhesion in blood smear.
Parasitology
Plant Trichomes Under Microscope: Differential Diagnosis with Nematodes
Microscopy of strawberry trichomes at ×10 magnification: morphological features of plant hairs and differential diagnosis with nematode larvae.
Hemostasis
EDTA-Induced Pseudothrombocytopenia in Blood Smear
EDTA-induced platelet aggregation is a common cause of spurious thrombocytopenia. Peripheral blood smear evaluation when analyzer shows 15×10^9/L.
Oncohematology
Leukemization of Lymphoma: Atypical Lymphocytes in Blood Smear
A case of lymphoma leukemization: pronounced leukocytosis, atypical lymphocytes with vacuolization in a blood smear, and analyzer results after thermostat incubation.
Lab test interpretation
Fecal Salt Crystals in Coprogram Microscopy
Discovering salt crystals in native fecal samples during coprograms. Features of microscopy and possible causes of urinary salt contamination.
Laboratory methods
Gram Stain Errors: Dye Crystallization on Hot Glass
Learn about the causes of dye crystal formation during Gram staining. This article covers errors in smear fixation technique and gentian violet crystallization on hot glass.
Parasitology
Plant Pollen Under Microscope: Sheep Sorrel and Goat Willow
Morphology of sheep sorrel (Rumex acetosella) and goat willow (Salix caprea) pollen under light microscopy. Differential diagnosis of artifacts.