TY - JOUR
T1 - Correlation between cytologic and histopathologic diagnoses of bone lesions in dogs
T2 - A study of the diagnostic accuracy of bone cytology
AU - Berzina, Inese
AU - Sharkey, Leslie C.
AU - Matise, Ilze
AU - Kramek, Betty
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2008/9
Y1 - 2008/9
N2 - Background: The diagnostic value of cytology compared with histopathology varies by tissue, but there is little information regarding this comparison involving canine bone. Objectives: The objective of this retrospective study was to compare primary pathologic processes for cytology and histopathology of canine bone lesions. We adopted a proposed standardized format for reporting studies of diagnostic accuracy. Methods: A computer search of canine medical records at the University of Minnesota Veterinary Medical Center from September 2002 through October 2006 identified 52 bone cytology samples that had incisional (IncB) and/or excisional (ExcB) biopsy performed. The primary pathologic process was determined by evaluation of original reports. Cytologic vs IncB and cytologic vs ExcB were compared pairwise for agreement. Agreement was compared for neoplastic and non-neoplastic processes using the combined IncB/ExcB data, which included all ExcB (n = 21) and IncB when that was the only biopsy available (K = 31). Combined data were used to determine the effect of cytology cellularity on the diagnostic correlation. Results: The correlation in primary process between cytology and IncB was 71%, and for ExcB was 71%. For lesions with a cytologic diagnosis of neoplasia compared with the combined IncB/ExcB data set, cytology and histopathology agreed in 92% of cases, which was significantly greater (P < .0001, x2) than the 27% for non-neoplastic processes. Cytology cellularity significantly affected rates of correlation (P = .026), with high, moderate, and poor cellularity samples having concordant primary processes in 88%, 77%, and 47% of cases, respectively. Conclusions: Cytologic diagnosis of neoplasia for samples collected from canine bone correlates better with histopathology than cytologie diagnosis of non-neoplastic proliferative processes or inflammation. Cytologic diagnoses from highly cellular samples are more likely to correlate with histopathology than those from less cellular samples.
AB - Background: The diagnostic value of cytology compared with histopathology varies by tissue, but there is little information regarding this comparison involving canine bone. Objectives: The objective of this retrospective study was to compare primary pathologic processes for cytology and histopathology of canine bone lesions. We adopted a proposed standardized format for reporting studies of diagnostic accuracy. Methods: A computer search of canine medical records at the University of Minnesota Veterinary Medical Center from September 2002 through October 2006 identified 52 bone cytology samples that had incisional (IncB) and/or excisional (ExcB) biopsy performed. The primary pathologic process was determined by evaluation of original reports. Cytologic vs IncB and cytologic vs ExcB were compared pairwise for agreement. Agreement was compared for neoplastic and non-neoplastic processes using the combined IncB/ExcB data, which included all ExcB (n = 21) and IncB when that was the only biopsy available (K = 31). Combined data were used to determine the effect of cytology cellularity on the diagnostic correlation. Results: The correlation in primary process between cytology and IncB was 71%, and for ExcB was 71%. For lesions with a cytologic diagnosis of neoplasia compared with the combined IncB/ExcB data set, cytology and histopathology agreed in 92% of cases, which was significantly greater (P < .0001, x2) than the 27% for non-neoplastic processes. Cytology cellularity significantly affected rates of correlation (P = .026), with high, moderate, and poor cellularity samples having concordant primary processes in 88%, 77%, and 47% of cases, respectively. Conclusions: Cytologic diagnosis of neoplasia for samples collected from canine bone correlates better with histopathology than cytologie diagnosis of non-neoplastic proliferative processes or inflammation. Cytologic diagnoses from highly cellular samples are more likely to correlate with histopathology than those from less cellular samples.
KW - Biopsy
KW - Bone
KW - Cytology
KW - Diagnostic accuracy
KW - Dog
KW - Histopathology
KW - Neoplasia
KW - Sensitivity and specificity
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U2 - 10.1111/j.1939-165X.2008.00050.x
DO - 10.1111/j.1939-165X.2008.00050.x
M3 - Article
C2 - 18761529
AN - SCOPUS:52649101035
SN - 0275-6382
VL - 37
SP - 332
EP - 338
JO - Veterinary Clinical Pathology
JF - Veterinary Clinical Pathology
IS - 3
ER -