Blood/Blood Cells and Cellular Components ›› Red Blood Cells ›› Abnormal

Teardrop Cell*

Microscopic Features:
  • About the same size as a normal RBC
  • RBC is Teardrop or pear-shaped
Normal % blood-PB, marrow-BM, lymphoid tissue-LN:
  • PB: None
  • BM: None
  • LN: None
May Resemble:
  • Normal Mature RBC
  • Ovalocyte (elliptocyte)
  • Schistocyte
  • Sickle cell
Differential Diagnoses:

Increased in:
Bone marrow infiltration by hematologic or non-hematologic malignancy
Artifact of slide preparation (in which all the tails usually point in the same direction)

Classic Immunophenotype:
  • N/A
Cartoon Image:

  • Increased number of tear drop RBCs is a clue to a possible underlying marrow process