LSA - Canine, non-chemo Flashcards
(103 cards)
Prevalence of anemia was (higher/lower) in dogs with LSA vs. IBD and what # of RBC anomalies per dog was able to differentiate b/w LSA and IBD with 71% sens and 70% spec. (Parachini-Winter JAVMA 2019)
LSA = higher rate of anemia (53% vs. 22% of IBD)
3+ different RBC anomalies = more likely to be LSA, eccentrocytes most common single finding in LSA
What was the relationship between serum thymidine kinase 1 (STK1) and LSA response/relapse in dogs? (Boye JVIM 2019)
Pretreatment sTK1> 20Du/L in 88% of dogs, significantly lower in dogs that had CR vs PR
Dogs that had CR with 5x increase in sTK1 at 4wk interval predicted replase at nexd recheck (sens 50%, spec 94%)
What was the expression profile of PTEN and the MTOR-PI3K-AKT axis in CD4+ T cell nodal LSA in dogs? (Harris VCO 2019)
Downregulation of PTEN
Upregulation of MTOR-PI3K-AKT axis
What was the relationship bewtween the s-phase fraction of canine LSA measured by flow with the grade of the LSA? (Miniscalco J comp Path 2018)
Higher % in high grade B or T cell LSA vs. low grade
cutoff value of 3.15% best in discriminating b/w the two
S-phase fraction of LSA in dogs was correlated with what other value measured by flow? (Miniscalco J Comp Path 2018)
Strongly correlated with Ki67
What was the cytologic/histologic agreement b/w endoscopic bx for LSA vs. enteritis in dogs? Specificity and sensitivity? (Maeda Vet Path 2017)
81.4% (136/167 cases)
Spec 73.5%, sens 98.6%
What was the CT appearance of the liver/spleen in the majority of dogs with multicentric LSA w/ cytologic evidence of splenic/hepatic involvement? (Jonse JSAP 2017)
Normal
What MRI phases were the most useful in identifying LSA in the spine of dogs? (Allett VRU 2016)
STIR and T1 post-contrast
In dogs with multicentric LSA, addition of cytology to splenic and hepatic ultrasound, a significant shift ocurred from what stage to what stage? What did this study confirm about stage and prognosis in dogs with LSA? (Nerschbach VCO 2016)
Significant shift from stage IV to III
Confirmed no change in outcome for stage III vs. IV
What was found when the intraclass correlation coefficient (ICC) was measured between clinicians for measuring LN size and % change in dogs with LSA? (Childress VCO 2016)
Some variation between inter-rater reliability for LN measurement, but high ICC for % change in LNs (0.94 for sum LD)
–> inter-and intra-rater reliability in measurements among the 3 raters = good to excellent
Loss of what can be observed in Boxers and may be why they tend to get T cell LSA (Pawlak VCO 2016)
canine chromosome 11
What was found regarding FoxP3 IHC positivity in samples from dogs with IBD vs. small cell LSA? What about IL-10? (Maeda Vet Path 2015)
FoxP3+ and IL-10 significantly lower in IBD compared to healthy and LSA
FoxP3+ higher in LSA
What were the blood levels used in the “canine lymphoma blood test” (cLBT) and how did they correlated with remission/relapse? (Alexandrakis VCO 2014)
C reactive protein and haptoglobin
cBLT levels correlated well with how clinican assessed remission/relapse
Dogs with the lowest cBLT scores at their remission showed the longest survival times
Pretreatment levels correlated with outcome
In dogs with high FoxP3 expression and small SI LSA, what was found to b ecorrelated with a worse prognosis? (Maeda Vet Path 2015)
Higher numbers of Tregs
Dog with non-focal hematopoietic neoplasia were able to be distinguished from normal dogs based on what on MRI? (Feeney Comp Med 2013) **committee member**
Visual and ROI (region of interest) signal intensity relationships to skeletal mm on T2
Take home: MR may be useful in distinguishing normal from abnormal in these dogs based on visual and ROI comparisons b/w organs/tissues
What phenotype are most canine intestinal LSAs? (Ohmura VCO 2015, Kaneko J Vet Med Sci 2008)
T cell
What was the association of AgNOR/cell and Ki67 positivity between dogs with LSA vs. lymphadenitis, hyperplasia or normal LN? (Bauer JVIM 2007)
Higher in LSA
>2.04 AgNOR/cell 95% spec/sens for LSA
Ki67+ >10.4% 95% sens/98%spec for LSA
What level of MHCII expression is associated with a worse outcome in dogs with B cell LSA? What other patient/disease characteristics were associated with outcome? (Rao JVIM 2011)
Low MHCII = worse prognosis: 120d (4mo) vs 314d (10.5mo)
Cell size (large 155d vs. small 275d) and patient age (<7yr) associated with mortality
Survivin expression level in dogs with LSA was correlated with what? (Rebhun JVIM 2008)
High survivin immunoreactivity = shorter median DFI: 171d (5.7mo) vs. 321d (10.7mo)
What is considered the minimum measurable disease for dogs with peripheral nodal LSA and at least one lesion of what size is needed to evaluate response to treatment? (VCO Vail 2010 (VCOG))
10mm = minimum for measurable disease
one lesion needs to be at least 20mm - if target lesion becomes <10mm, considered non measurable but still record actual measurement or if can’t be measured default = 5mm
What is the requirement for a new lesion to count as PD under VCOG? (Vail VCO 2010)
Any new lesion that is peripheral and >15mm
What is the definition of PD for dogs with LSA under VCOG? (Vail VCO 2010)
PD = 20% increase in mean sum LD from smallest mean sum
The LD of at least one of the target lesions must demonstrate an absolute increase of at least 5 mm compared with its nadir for PD to be defined. For target lesions <10 mm at nadir, an increase in LD of any single previously identified target lesion to ≥15 mm
PFS, PFS-rate, OS, event-free survival, TTP and LSA-specific survival all a measured from ____ whereas disease-free survival and response duration are measured from _____ (VCOG, Vail VCO 2010)
PFS, PFS-rate, OS, event-free survival, TTP and LSA-specific survival: measured from initiation of treatment
disease-free survival and response duration: documentation of response
What flow characteristics of T cell LSA are associated with indolent T cell LSA vs. high grade T cell LSA? (Avery JVIM 2014)
indolent: CD45-, high MHCII (MST not reached)
High grade: CD45+ and low MHC II (MST 159d/5.3mo)