JVD 2019 #2 Validation of Regional LN Excisional Bx for Staging MXfacial Malignant Neoplasms in 97 dogs & 10 cats (2006-2016), Odenweller; Mark Smith, Kendall Taney Flashcards Preview

JVD 2019-2021 > JVD 2019 #2 Validation of Regional LN Excisional Bx for Staging MXfacial Malignant Neoplasms in 97 dogs & 10 cats (2006-2016), Odenweller; Mark Smith, Kendall Taney > Flashcards

Flashcards in JVD 2019 #2 Validation of Regional LN Excisional Bx for Staging MXfacial Malignant Neoplasms in 97 dogs & 10 cats (2006-2016), Odenweller; Mark Smith, Kendall Taney Deck (7)
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1
Q

How many cases had metastasis to one or more regional LNs based on histopath?

A

14% of 107 cases

2
Q

Of those cases with metastasis to region LNs (14% of 107) how many affected the mandibular lymphocentrum? How many ONLY the MN lymphocentrum?

A

73% affected the MN lymphocentrum

72% only affected the MN lymphocentrum

3
Q

Of those cases with metastasis to region LNs (14% of 107) how many affected the mandibular and medial retropharyngeal lymphocentrums? How many had had all 3 (MN, Med retro ph., & parotid)?

A
  1. 2% affected the mandibular and medial retropharyngeal lymphocentrums
  2. 1% affected all 3 (parotid, med retro & MN)
4
Q

Why to sample multiple lymphocentrums?

A

The parotid, mandibular, and medial retropharyngeal
lymphocentrums
each receive afferent
lymphatics from particular regions, with some areas of overlap, including the possibility of
contralateral metastasis via lymphatic anastomotic connections.

5
Q

What were the main differences between this study and the 2002 JVD LN staging of Oral & MXfacial neoplasms in 31 dogs and cats by Herring (and mark smith)

A

2019- substantially lower incidence of regional metastatic disease = 14% compared to previous 35.5%(2002)
2019- 26% of 15 cases with + lymph nodes had NO evidence of mets in MN lymphocentrum versus 56% (54% HAD mets to MN lymph nodes in 2002)

6
Q

In Ku “Cytological-histological concordance in the diagnosis of neoplasia in canine and feline lymphnodes: a retrospective study of 367 cases.” In Vet Comp Oncol 2017- what was the % accuracy of FNA in assessing metastasis?

A

FNA to be less reliable in assessing metastasis, reporting 77.2% accuracy in dogs and cats.

7
Q

2015 J Small Anim Pract- Amores-Fuster “The diagnostic utility of LN cytology samples in dogs and cats.” found FNA able to assess metastasis in what %

A

72.8% dogs and 85.9% cats

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