
Parasitology Challenge: Unknown Object in Urine Sediment
A diagnostic parasitology challenge: a motile microorganism, 130 µm long, was found in a native urine sediment preparation. Identify the object from the photos.
Tag

A diagnostic parasitology challenge: a motile microorganism, 130 µm long, was found in a native urine sediment preparation. Identify the object from the photos.

Microscopic detection of Dientamoeba fragilis in stool after PARASEP enrichment. Morphology of the protozoan, clinical features, and diagnosis of dientamoebiasis.

Morphology of triple phosphate crystals in urine sediment with alkaline reaction (pH 8.0). Causes of struvite appearance and features of microscopic diagnosis.

Morphology of erythrocyte casts in urine sediment: microscopic signs of renal hematuria in glomerulonephritis and other kidney lesions.

Cytological findings of endometrioid adenocarcinoma of the uterine body in a cervical smear: atypical cell clusters, cytomorphology, and verification.

Microscopy of a native ascitic fluid specimen: morphology of mesothelial cells against a background of erythrocytes and leukocytes at 400x magnification.

Spermatorrhea in urine sediment microscopy: causes of spermatozoa presence, visual characteristics of the sample, and clinical significance in laboratory practice.

Morphology of atypical cells in ascitic fluid: microscopy of native preparations and Romanowsky staining when malignancy is suspected.

Morphological features of Trichomonas vaginalis under microscopy of a vaginal smear. Diagnosis of urogenital trichomoniasis and clinical manifestations.

Microscopic examination of liver cyst aspirate: discovery of Echinococcus protoscolexes with chitinous hooks and calcareous corpuscles in a native preparation.

Cylindroids in urine sediment microscopy: morphological features of mucus strands, differential diagnosis with casts, and clinical significance.

A practical exercise in laboratory hematology: microscopy of a peripheral blood smear and differentiation of three leukocytes based on their morphological features.