Hyaline casts in urine cytology indicate protein precipitation in renal tubules, which can be a normal finding (especially after exercise or dehydration) or suggest renal disease when numerous. They appear as clear, cylindrical structures with parallel sides and rounded ends, composed mainly of Tamm-Horsfall protein. While not directly related to cytological diagnosis of tumors, their presence may indicate underlying renal pathology that could affect interpretation. In nephritic syndromes, cellular or granular casts would be more significant. Cytologists should note but not overinterpret hyaline casts unless other abnormal elements are present.

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Zambia

• Joseph Soko – 101 pts

• Visual Pathway Lesions
• Positive and Negative Symptoms
• Hallucinations and Delusions
• Antipsychotic Medications
• Emergency: Environmental Emergencies