TY - JOUR
T1 - Chest radiographic and CT findings in hyperleukocytic acute myeloid leukemia A retrospective cohort study of 73 patients
AU - Stefanski, Michael
AU - Jamis-Dow, Carlos
AU - Bayerl, Michael
AU - Desai, Ruchi J.
AU - Claxton, David F.
AU - Van De Louw, Andry
N1 - Publisher Copyright:
Copyright © 2016 the Author(s). Published by Wolters Kluwer Health, Inc. All rights reserved.
PY - 2016
Y1 - 2016
N2 - Hyperleukocytic acute myeloid leukemia (AML) is associated with pulmonary complications and high early mortality rate, but given its rarity, data on chest radiographic presentation are scarce. We retrospectively reviewed the charts of 73 AML patients admitted with white blood cell count >100-109/L between 2003 and 2014 in order to describe the chest radiographic and computed tomography (CT) findings and to correlate them with AML subtype and respiratory symptoms. Forty-two of the 73 patients (58%) overall and 36 of the 54 patients (67%) with clinical signs of pulmonary leukostasis had abnormal radiographs on admission. The presence of radiographic abnormalities was significantly associated with dyspnea and oxygen/ ventilatory support requirements (P<0.01) and with day 28 mortality (45% vs 13%, P=0.005) but not with monocytic subtype of AML. Sixteen patients had isolated focal basilar airspace opacities, unilateral (n=13) or bilateral (n=3), while 16 patients had bilateral diffuse opacities, interstitial (n=12) or airspace and interstitial (n=4). Two patients had isolated pleural effusion, 2 patients had unilateral midlung airspace opacities, and 6 patients had a combination of focal airspace and diffuse interstitial opacities. Overall, 2 patterns accounted for 75% of abnormal findings: bilateral diffuse opacities tended to be associated with monocytic AML, whereas basilar focal airspace opacities were more frequent in nonmonocytic AML (P<0.05). Eighteen patients had CT scans, revealing interlobular septal thickening (n=12), airspace (n=11) and ground-glass (n=9) opacities, pleural effusions (n=12), and acute pulmonary embolism (n=2). Hyperleukocytic AML is frequently associated with abnormal chest radiographs, involving mostly focal basilar airspace opacities (more frequent in nonmonocytic AML) or diffuse bilateral opacities. CT scan should be considered broadly due to the suboptimal resolution of radiographs for detecting signs of leukostasis.
AB - Hyperleukocytic acute myeloid leukemia (AML) is associated with pulmonary complications and high early mortality rate, but given its rarity, data on chest radiographic presentation are scarce. We retrospectively reviewed the charts of 73 AML patients admitted with white blood cell count >100-109/L between 2003 and 2014 in order to describe the chest radiographic and computed tomography (CT) findings and to correlate them with AML subtype and respiratory symptoms. Forty-two of the 73 patients (58%) overall and 36 of the 54 patients (67%) with clinical signs of pulmonary leukostasis had abnormal radiographs on admission. The presence of radiographic abnormalities was significantly associated with dyspnea and oxygen/ ventilatory support requirements (P<0.01) and with day 28 mortality (45% vs 13%, P=0.005) but not with monocytic subtype of AML. Sixteen patients had isolated focal basilar airspace opacities, unilateral (n=13) or bilateral (n=3), while 16 patients had bilateral diffuse opacities, interstitial (n=12) or airspace and interstitial (n=4). Two patients had isolated pleural effusion, 2 patients had unilateral midlung airspace opacities, and 6 patients had a combination of focal airspace and diffuse interstitial opacities. Overall, 2 patterns accounted for 75% of abnormal findings: bilateral diffuse opacities tended to be associated with monocytic AML, whereas basilar focal airspace opacities were more frequent in nonmonocytic AML (P<0.05). Eighteen patients had CT scans, revealing interlobular septal thickening (n=12), airspace (n=11) and ground-glass (n=9) opacities, pleural effusions (n=12), and acute pulmonary embolism (n=2). Hyperleukocytic AML is frequently associated with abnormal chest radiographs, involving mostly focal basilar airspace opacities (more frequent in nonmonocytic AML) or diffuse bilateral opacities. CT scan should be considered broadly due to the suboptimal resolution of radiographs for detecting signs of leukostasis.
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U2 - 10.1097/MD.0000000000005285
DO - 10.1097/MD.0000000000005285
M3 - Article
C2 - 27858899
AN - SCOPUS:84995947149
SN - 0025-7974
VL - 95
JO - Medicine (United States)
JF - Medicine (United States)
IS - 44
M1 - e5285
ER -