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

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›Misc:
Increased number of tear drop RBCs is a clue to a possible underlying marrow process