This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
In a case of hematuria of glomerular origin, urine examination shows the presence of all of the following except: 
Select and explain. 
A. Acanthocytes, B. Crenated red cells, C. Dysmorphic red cells, D. Red cell casts
A: Acanthocytes
Answer: A: Acanthocytes 
Explanation: In hematuria of glomerular origin red cell cast, crenated red cells and dysmorphic red cells are present. RBC cast represent blood and protein derived from the glomerulus and always indicate glomerulonephritis. Presence of dysmorphic red cells under phase contrast microscopy is also highly suggestive of a glomerular origin of red cells. Acanthocytes are deformed erythrocytes with spicules. Thorny erythrocytes are seen in 3 hereditary neurologic syndromes such as abetalipoproteinemia, neuroacanthocytosis and Mc Leod syndrome. Ref: Laboratory Medicine in Psychiatry and Behavioral Science By Sandra A. Jacobson, Chapter 335