Pulse - May 2023 - 9

PRACTICAL PATHOLOGY
Plexiform Vasculopathy in
Feline Cervical Lymph Nodes
Farshid Shahriar DVM, PhD, Dipl ACVP - Lab For Pets, Tustin, CA
History and clinical findings:
A 3- year-old, female -spayed, DSH cat was submitted to a veterinary
hospital with history mass on thyroid region. To determine the nature of
the growth, it was removed surgically and submitted for histopathological
examination to Animal Diagnostic Laboratory. Grossly, the tissues
was an approximately 4x2.1x1.2 cm irregular to triangular shape welldefined
mass with dark discoloration. Multiple sections of the tissues
were processed for histopathological examination.
Histopathologic findings:
This is a lymphoid organ with diffusely reduces lymphoid tissue. The
remaining lymphoid cells are mostly marginated at the peripheral and
subcapsular areas and randomly distributed in the parenchyma (Fig. 1).
The parenchyma is expanded and replaced by extensive accumulations of
erythrocytes or capillary-like proliferations (Fig. 2). Vessels are lined by
proliferative endothelial cells supported by a sparse to moderate fibrous
stroma. Endothelial cells have small elongated basophilic nuclei and inconsipicuous
cytoplasm no mitotic figure is noticed at 10 HPF 400x.
The peripheral lymphoid follicles have reactive features.
Diagnosis:
Diagnosis of lymph node with central hemorrhage and vascularization
compatible with Plexiform Vasculopathy was made according to gross
and histological features.
Discussion:
This is a newly described entity in cats. It is mostly observed in cervical
lymph node with expansion of parenchyma by vessels and erythrocytes.
These features are consistent with a newly described entity in cats
called Plexiform Vasculopathy in feline cervical lymph nodes. The cause
and origin of this condition are still unknown however vasculature has
lymphatic origin. Possible pathogenetic mechanism included drainage
disturbances caused by tumors in the lymph node or in close vicinity,
thrombosis or congestive heart failure or angiogenic factors released by
a neoplastic process. These animal need to be monitored and examined
for possible neoplasia. P
Reference:
Nicole Jungwirth, Johannes Junginger, Christoph Andrijczuk , Wolfgang
Baumga¨rtner, and Peter Wohlsein. Plexiform Vasculopathy in Feline Cervical
Lymph Nodes. Veterinary Pathology 2018, Vol. 55(3) 453-456
Figure 1
Figure 2
Figure 3
PULSE
MAY 2023
9

Pulse - May 2023

Table of Contents for the Digital Edition of Pulse - May 2023

Pulse - May 2023
Chapter Meetings & Calendar
President’s Perspective
Pulsepoints
SCVMA Profile
Practical Pathology
Aligncare Los Angeles Assists Pet Owners Facing Barriers to Care
UC Davis Update
Special Section
Tools for Success
Angel Fund
The RVT
Industry Insights
Digital Photography for Veterinarians
AVMA Diplomates
Resources
Disease Table
From the SCVMA Office
Pulse - May 2023 - Pulse - May 2023
Pulse - May 2023 - Cover2
Pulse - May 2023 - 1
Pulse - May 2023 - 2
Pulse - May 2023 - Chapter Meetings & Calendar
Pulse - May 2023 - President’s Perspective
Pulse - May 2023 - Pulsepoints
Pulse - May 2023 - 6
Pulse - May 2023 - 7
Pulse - May 2023 - SCVMA Profile
Pulse - May 2023 - Practical Pathology
Pulse - May 2023 - Aligncare Los Angeles Assists Pet Owners Facing Barriers to Care
Pulse - May 2023 - 11
Pulse - May 2023 - 12
Pulse - May 2023 - UC Davis Update
Pulse - May 2023 - Special Section
Pulse - May 2023 - Tools for Success
Pulse - May 2023 - Angel Fund
Pulse - May 2023 - The RVT
Pulse - May 2023 - Industry Insights
Pulse - May 2023 - Digital Photography for Veterinarians
Pulse - May 2023 - 20
Pulse - May 2023 - 21
Pulse - May 2023 - 22
Pulse - May 2023 - AVMA Diplomates
Pulse - May 2023 - Resources
Pulse - May 2023 - Disease Table
Pulse - May 2023 - 26
Pulse - May 2023 - 27
Pulse - May 2023 - 28
Pulse - May 2023 - 29
Pulse - May 2023 - 30
Pulse - May 2023 - 31
Pulse - May 2023 - 32
Pulse - May 2023 - 33
Pulse - May 2023 - 34
Pulse - May 2023 - 35
Pulse - May 2023 - 36
Pulse - May 2023 - 37
Pulse - May 2023 - 38
Pulse - May 2023 - 39
Pulse - May 2023 - 40
Pulse - May 2023 - 41
Pulse - May 2023 - 42
Pulse - May 2023 - 43
Pulse - May 2023 - From the SCVMA Office
Pulse - May 2023 - Cover3
Pulse - May 2023 - Cover4
https://www.nxtbook.com/nxtbooks/scvma/pulse_202502
https://www.nxtbook.com/nxtbooks/scvma/pulse_202501
https://www.nxtbook.com/nxtbooks/scvma/pulse_202412
https://www.nxtbook.com/nxtbooks/scvma/pulse_202411
https://www.nxtbook.com/nxtbooks/scvma/pulse_202410
https://www.nxtbook.com/nxtbooks/scvma/pulse_202409
https://www.nxtbook.com/nxtbooks/scvma/pulse_202408
https://www.nxtbook.com/nxtbooks/scvma/pulse_202407
https://www.nxtbook.com/nxtbooks/scvma/pulse_202406
https://www.nxtbook.com/nxtbooks/scvma/pulse_202405
https://www.nxtbook.com/nxtbooks/scvma/pulse_202404
https://www.nxtbook.com/nxtbooks/scvma/pulse_202403
https://www.nxtbook.com/nxtbooks/scvma/pulse_202402
https://www.nxtbook.com/nxtbooks/scvma/pulse_202401
https://www.nxtbook.com/nxtbooks/scvma/pulse_202312
https://www.nxtbook.com/nxtbooks/scvma/pulse_202311
https://www.nxtbook.com/nxtbooks/scvma/pulse_202310
https://www.nxtbook.com/nxtbooks/scvma/pulse_202309
https://www.nxtbook.com/nxtbooks/scvma/pulse_202308
https://www.nxtbook.com/nxtbooks/scvma/pulse_202307
https://www.nxtbook.com/nxtbooks/scvma/pulse_202306
https://www.nxtbook.com/nxtbooks/scvma/pulse_202305
https://www.nxtbook.com/nxtbooks/scvma/pulse_202304
https://www.nxtbook.com/nxtbooks/scvma/pulse_202303
https://www.nxtbook.com/nxtbooks/scvma/pulse_202302
https://www.nxtbook.com/nxtbooks/scvma/pulse_202301
https://www.nxtbook.com/nxtbooks/scvma/pulse_202212
https://www.nxtbook.com/nxtbooks/scvma/pulse_202211
https://www.nxtbook.com/nxtbooks/scvma/pulse_202210
https://www.nxtbook.com/nxtbooks/scvma/pulse_202209
https://www.nxtbook.com/nxtbooks/scvma/pulse_202208
https://www.nxtbook.com/nxtbooks/scvma/pulse_202207
https://www.nxtbook.com/nxtbooks/scvma/pulse_202206
https://www.nxtbook.com/nxtbooks/scvma/pulse_202205
https://www.nxtbook.com/nxtbooks/scvma/pulse_202204
https://www.nxtbook.com/nxtbooks/scvma/pulse_202203
https://www.nxtbook.com/nxtbooks/scvma/pulse_202202
https://www.nxtbook.com/nxtbooks/scvma/pulse_202201
https://www.nxtbook.com/nxtbooks/scvma/pulse_202112
https://www.nxtbook.com/nxtbooks/scvma/pulse_202111
https://www.nxtbook.com/nxtbooks/scvma/pulse_202110
https://www.nxtbook.com/nxtbooks/scvma/pulse_202109
https://www.nxtbook.com/nxtbooks/scvma/pulse_202108
https://www.nxtbook.com/nxtbooks/scvma/pulse_202107
https://www.nxtbook.com/nxtbooks/scvma/pulse_202106
https://www.nxtbook.com/nxtbooks/scvma/scvma/pulse_202105
https://www.nxtbook.com/nxtbooks/scvma/pulse_202104
https://www.nxtbook.com/nxtbooks/scvma/pulse_202103
https://www.nxtbook.com/nxtbooks/scvma/pulse_202102
https://www.nxtbook.com/nxtbooks/scvma/pulse_202101
https://www.nxtbook.com/nxtbooks/scvma/pulse_202012
https://www.nxtbook.com/nxtbooks/scvma/pulse_202011
https://www.nxtbook.com/nxtbooks/scvma/pulse_202010
https://www.nxtbook.com/nxtbooks/scvma/pulse_202009
https://www.nxtbook.com/nxtbooks/scvma/pulse_202008
https://www.nxtbook.com/nxtbooks/scvma/pulse_202007
https://www.nxtbook.com/nxtbooks/scvma/pulse_202006
https://www.nxtbook.com/nxtbooks/scvma/pulse_202005
https://www.nxtbook.com/nxtbooks/scvma/pulse_202004
https://www.nxtbook.com/nxtbooks/scvma/pulse_202003
https://www.nxtbook.com/nxtbooks/scvma/pulse_202002
https://www.nxtbook.com/nxtbooks/scvma/pulse_202001
https://www.nxtbook.com/nxtbooks/scvma/pulse_201912
https://www.nxtbook.com/nxtbooks/scvma/pulse_201911
https://www.nxtbook.com/nxtbooks/scvma/pulse_201910
https://www.nxtbook.com/nxtbooks/scvma/pulse_201909
https://www.nxtbook.com/nxtbooks/scvma/pulse_201908
https://www.nxtbook.com/nxtbooks/scvma/pulse_201907
https://www.nxtbook.com/nxtbooks/scvma/pulse_201906
https://www.nxtbook.com/nxtbooks/scvma/pulse_201905
https://www.nxtbook.com/nxtbooks/scvma/pulse_201904
https://www.nxtbook.com/nxtbooks/scvma/pulse_201903
https://www.nxtbook.com/nxtbooks/scvma/pulse_201902
https://www.nxtbook.com/nxtbooks/scvma/pulse_201901
https://www.nxtbook.com/nxtbooks/scvma/pulse_201812
https://www.nxtbook.com/nxtbooks/scvma/pulse_201811
https://www.nxtbook.com/nxtbooks/scvma/pulse_201810
https://www.nxtbook.com/nxtbooks/scvma/pulse_201809
https://www.nxtbook.com/nxtbooks/scvma/pulse_201808
https://www.nxtbook.com/nxtbooks/scvma/pulse_201807
https://www.nxtbook.com/nxtbooks/scvma/pulse_201806
https://www.nxtbook.com/nxtbooks/scvma/pulse_201805
https://www.nxtbook.com/nxtbooks/scvma/pulse_201804
https://www.nxtbook.com/nxtbooks/scvma/pulse_201803
https://www.nxtbook.com/nxtbooks/scvma/pulse_201802
https://www.nxtbook.com/nxtbooks/scvma/pulse_201801
https://www.nxtbook.com/nxtbooks/scvma/pulse_201712
https://www.nxtbook.com/nxtbooks/scvma/pulse_201711
https://www.nxtbook.com/nxtbooks/scvma/pulse_201710
https://www.nxtbook.com/nxtbooks/scvma/pulse_201709
https://www.nxtbook.com/nxtbooks/scvma/pulse_201708
https://www.nxtbook.com/nxtbooks/scvma/pulse_201707
https://www.nxtbook.com/nxtbooks/scvma/pulse_201706
https://www.nxtbook.com/nxtbooks/scvma/pulse_201705
https://www.nxtbook.com/nxtbooks/scvma/pulse_201704
https://www.nxtbook.com/nxtbooks/scvma/pulse_201703
https://www.nxtbook.com/nxtbooks/scvma/pulse_201702
https://www.nxtbook.com/nxtbooks/scvma/pulse_201701
https://www.nxtbook.com/nxtbooks/scvma/pulse_201612
https://www.nxtbook.com/nxtbooks/scvma/pulse_201611
https://www.nxtbook.com/nxtbooks/scvma/pulse_201610
https://www.nxtbook.com/nxtbooks/scvma/pulse_201609
https://www.nxtbook.com/nxtbooks/scvma/pulse_201608
https://www.nxtbook.com/nxtbooks/scvma/pulse_201606
https://www.nxtbook.com/nxtbooks/scvma/pulse_201605
https://www.nxtbook.com/nxtbooks/scvma/pulse_201604
https://www.nxtbook.com/nxtbooks/scvma/pulse_201603
https://www.nxtbook.com/nxtbooks/scvma/pulse_201602
https://www.nxtbook.com/nxtbooks/scvma/pulse_201601
https://www.nxtbook.com/nxtbooks/scvma/pulse_201512
https://www.nxtbook.com/nxtbooks/scvma/pulse_201511
https://www.nxtbook.com/nxtbooks/scvma/pulse_201510
https://www.nxtbook.com/nxtbooks/scvma/pulse_201509
https://www.nxtbook.com/nxtbooks/scvma/pulse_201508
https://www.nxtbook.com/nxtbooks/scvma/pulse_201507
https://www.nxtbook.com/nxtbooks/scvma/pulse_201506
https://www.nxtbook.com/nxtbooks/scvma/pulse_201505
https://www.nxtbook.com/nxtbooks/scvma/pulse_201504
https://www.nxtbook.com/nxtbooks/scvma/pulse_201503
https://www.nxtbook.com/nxtbooks/scvma/pulse_201502
https://www.nxtbook.com/nxtbooks/scvma/pulse_201501
https://www.nxtbook.com/nxtbooks/scvma/pulse_201412
https://www.nxtbook.com/nxtbooks/scvma/pulse_201411
https://www.nxtbook.com/nxtbooks/scvma/pulse_201410
https://www.nxtbook.com/nxtbooks/scvma/pulse_201409
https://www.nxtbook.com/nxtbooks/scvma/pulse_201408
https://www.nxtbook.com/nxtbooks/scvma/pulse_201407
https://www.nxtbook.com/nxtbooks/scvma/pulse_201406
https://www.nxtbook.com/nxtbooks/scvma/pulse_201405
https://www.nxtbook.com/nxtbooks/scvma/pulse_201404
https://www.nxtbook.com/nxtbooks/scvma/pulse_201403
https://www.nxtbook.com/nxtbooks/scvma/pulse_201402
https://www.nxtbook.com/nxtbooks/scvma/pulse_201401
https://www.nxtbook.com/nxtbooks/scvma/pulse_201312
https://www.nxtbook.com/nxtbooks/scvma/pulse_201311
https://www.nxtbook.com/nxtbooks/scvma/pulse_201310
https://www.nxtbook.com/nxtbooks/scvma/pulse_201309
https://www.nxtbook.com/nxtbooks/scvma/pulse_201308
https://www.nxtbook.com/nxtbooks/scvma/pulse_201307
https://www.nxtbook.com/nxtbooks/scvma/pulse_201306
https://www.nxtbook.com/nxtbooks/scvma/pulse_201305
https://www.nxtbook.com/nxtbooks/scvma/pulse_201304
https://www.nxtbook.com/nxtbooks/scvma/pulse_201303
https://www.nxtbook.com/nxtbooks/scvma/pulse_201302
https://www.nxtbook.com/nxtbooks/scvma/pulse_201301
https://www.nxtbook.com/nxtbooks/scvma/pulse_201212
https://www.nxtbook.com/nxtbooks/scvma/pulse_201211
https://www.nxtbook.com/nxtbooks/scvma/pulse_201210
https://www.nxtbook.com/nxtbooks/scvma/pulse_201209
https://www.nxtbook.com/nxtbooks/scvma/pulse_201208
https://www.nxtbook.com/nxtbooks/scvma/pulse_201207
https://www.nxtbook.com/nxtbooks/scvma/pulse_201206
https://www.nxtbook.com/nxtbooks/scvma/pulse_201205
https://www.nxtbook.com/nxtbooks/scvma/pulse_201204
https://www.nxtbook.com/nxtbooks/scvma/pulse_201203
https://www.nxtbook.com/nxtbooks/scvma/pulse_201202
https://www.nxtbook.com/nxtbooks/scvma/pulse_201201
https://www.nxtbook.com/nxtbooks/scvma/pulse_201112
https://www.nxtbook.com/nxtbooks/scvma/pulse_201111
https://www.nxtbook.com/nxtbooks/scvma/pulse_201110
https://www.nxtbook.com/nxtbooks/scvma/pulse_201109
https://www.nxtbook.com/nxtbooks/scvma/pulse_201108
https://www.nxtbook.com/nxtbooks/scvma/pulse_201107
https://www.nxtbook.com/nxtbooks/scvma/pulse_201106
https://www.nxtbook.com/nxtbooks/scvma/pulse_201105
https://www.nxtbook.com/nxtbooks/scvma/pulse_201104
https://www.nxtbook.com/nxtbooks/scvma/pulse_201103
https://www.nxtbook.com/nxtbooks/scvma/pulse_201102
https://www.nxtbook.com/nxtbooks/scvma/pulse_201101
https://www.nxtbookmedia.com