240 results
Plasmodium Falciparum Blood Smear.
Key features suggesting Plasmodium falciparum:
- extreme parasitemia
- normocytic RBCs (vivax, ovale prefer big
Falciparum Blood Smear ... multiples per RBC ... rare in blood smears ... Falciparum #Blood #Smear
Babesia spp. on Peripheral Blood Smear Microscopy
 - Multiple small parasites per RBC
 - "maltese cross"
Peripheral Blood Smear ... parasites per RBC ... peripheral #blood #smear
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
Normochromic RBCs on Smear ... RBCs Decreased RBC ... Spherocytes on Smear ... Thalassemia • RBC ... Disorder • RBC
Red Blood Cell Morphology Atlas

Size variation, Hemoglobin distribution,  
Hypochromia,  
Shape variation,  
Inclusions, 
Red
#Path #Blood #Smear ... #RBC #Morphology
Plasmodium Falciparum Gametocytes on Blood Smear.

Banana-shaped gametocytes are only seen in Plasmodium falciparum but rare in
Gametocytes on Blood Smear ... rare in blood smears ... Falciparum #Blood #Smear
Hemolytic Anemias - Differential Diagnosis Algorithm

Signs of anemia and hemolysis:
 • ↓ Haptoglobin
 • ↑ LDH
Abnormal peripheral smear ... • Extrinsic RBC ... • Intrinsic RBC
A normal peripheral blood smear indicates the appropriate appearance of red blood cells, with a zone
peripheral blood smear ... the size of the RBC
Plasmodium - Identification Algorithm
 • P. falciparum: RINGS AND GAMETOCYTES PREDOMINATE, Small delicate rings, <1/3 size
rings, <1/3 size RBC ... Multiple rings/RBC ... rings, ≤ 1/3 size RBC ... trophs, >1/3 size RBC ... Algorithm #pathology #smear
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
2) External (RBC ... 3) Internal (RBC ... Peripheral Blood Smear
Warm Antibody Autoimmune Hemolytic Anemia 
1) DIAGNOSE AIHA
 • Anemia: macrocytic > normocytic, ↑ reticulocytes
 •
↑ LDH • Anti-RBC ... C3d • Blood smear