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

Teardrop Cell*


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Additional Image 1

› 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 [Compare]
• Ovalocyte (elliptocyte) [Compare]
• Schistocyte [Compare]
• Sickle cell [Compare]

› 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)

› 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