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Bone Marrow Aspiration/Core Biopsy 1070.e1

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A B
D

Procedures and Techniques
C

BONE MARROW ASPIRATION/CORE BIOPSY The needle is positioned into
BONE MARROW ASPIRATION/CORE BIOPSY Assembled (left) and disas- the middle of the widest portion of the dorsal border of the iliac crest and directed
sembled (right) bone marrow needles. A, Needle. B, Needle guard. C, Cap. D, stylet. ventrally. (From MacDonald V: Bone marrow aspiration and biopsy. In Ettinger SJ,
et al, editors: Textbook of veterinary internal medicine: diseases of the dog and
cat, ed 8, St. Louis, 2017, Elsevier.)

A B

BONE MARROW ASPIRATION/CORE BIOPSY A, Stained smear. Many marrow particles are present in a deeply
staining oval grouping surrounded by blood. The smear quality is excellent. B, Microscopic appearance of a bone
marrow aspirate. Four densely cellular marrow particles are seen as islands with marked stain uptake—one in each
corner of the image—surrounded by looser monolayers of mixed hematopoietic cells. (From MacDonald V: Bone marrow
aspiration and biopsy. In Ettinger SJ, et al, editors: Textbook of veterinary internal medicine: diseases of the dog and
cat, ed 8, St. Louis, 2017, Elsevier.)

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