RBCs with multiple, irregularly spaced projections are known as:

RBCs with multiple, irregularly spaced projections are known as:

• A. Crenated cells
• B. Acanthocytes
• C. Schistocytes
• D. Anisocytes

Answer: (B)

Acanthocytes, also called spur cells, are red blood cells with multiple irregularly spaced projections on their surface. The key feature is the uneven, variable-length spicule extensions that give the cell a spiky, irregular outline. This distinguishes them from other shapes: crenated cells show uniform, short projections usually due to artifact from drying; schistocytes are fragmented cell remnants resulting from mechanical destruction; anisocytes just show variation in cell size without surface projections. So the described appearance best fits acanthocytes.

Acanthocytes, also called spur cells, are red blood cells with multiple irregularly spaced projections on their surface. The key feature is the uneven, variable-length spicule extensions that give the cell a spiky, irregular outline. This distinguishes them from other shapes: crenated cells show uniform, short projections usually due to artifact from drying; schistocytes are fragmented cell remnants resulting from mechanical destruction; anisocytes just show variation in cell size without surface projections. So the described appearance best fits acanthocytes.