Abstract
Olfactory neuroblastoma (ONB) is a rare intranasal neoplasm in both dogs and humans. Similar clinical presentation and overlapping histologic and immunohistochemical features of ONB with other intranasal neoplasms can make diagnosis and treatment of intranasal neoplasia challenging. Furthermore, in part because of their rarity, there is a lack of reporting on therapeutic regimen for these neoplasms. In humans, initial debulking surgery is usually followed by radiation therapy. Here we report on the histologic, immunohistochemical, and ultrastructural characteristics of canine ONB and report on the clinical progression of cases treated with radiation therapy. In all nine canine ONB examined here, neoplastic cells were arranged in a lobular manner amidst a prominent neurofibrillary matrix and had features consistent with Grade III (high grade) ONB. The neoplastic cells demonstrated positive immunohistochemical staining for TuJ-1, a Class III beta-tubulin neuronal cytoskeletal protein, and variable staining for other markers, including chromogranin, synaptophysin, AE1/AE3 and MAP2. The longest surviving case was treated with a regimen similar to that used in humans, consisting of debulking surgery followed by definitive radiation therapy. Our study found that TuJ-1 is a useful marker for ONB and that radiation therapy, even in cases of advanced disease, may result in prolonged survival.
| Original language | English (US) |
|---|---|
| Journal | Veterinary and Comparative Oncology |
| DOIs | |
| State | Published - Jan 1 2019 |
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Keywords
- canine nasal tumours
- esthesioneuroblastoma
- olfactory neuroblastoma
- radiotherapy
- TuJ-1
ASJC Scopus subject areas
- veterinary(all)
Cite this
Clinical outcomes, ultrastructure and immunohistochemical features of canine high-grade olfactory neuroblastoma. / Church, Molly E.; Veluvolu, Sridhar M.; Durham, Amy C.; Woolard, Kevin D.
In: Veterinary and Comparative Oncology, 01.01.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Clinical outcomes, ultrastructure and immunohistochemical features of canine high-grade olfactory neuroblastoma
AU - Church, Molly E.
AU - Veluvolu, Sridhar M.
AU - Durham, Amy C.
AU - Woolard, Kevin D
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Olfactory neuroblastoma (ONB) is a rare intranasal neoplasm in both dogs and humans. Similar clinical presentation and overlapping histologic and immunohistochemical features of ONB with other intranasal neoplasms can make diagnosis and treatment of intranasal neoplasia challenging. Furthermore, in part because of their rarity, there is a lack of reporting on therapeutic regimen for these neoplasms. In humans, initial debulking surgery is usually followed by radiation therapy. Here we report on the histologic, immunohistochemical, and ultrastructural characteristics of canine ONB and report on the clinical progression of cases treated with radiation therapy. In all nine canine ONB examined here, neoplastic cells were arranged in a lobular manner amidst a prominent neurofibrillary matrix and had features consistent with Grade III (high grade) ONB. The neoplastic cells demonstrated positive immunohistochemical staining for TuJ-1, a Class III beta-tubulin neuronal cytoskeletal protein, and variable staining for other markers, including chromogranin, synaptophysin, AE1/AE3 and MAP2. The longest surviving case was treated with a regimen similar to that used in humans, consisting of debulking surgery followed by definitive radiation therapy. Our study found that TuJ-1 is a useful marker for ONB and that radiation therapy, even in cases of advanced disease, may result in prolonged survival.
AB - Olfactory neuroblastoma (ONB) is a rare intranasal neoplasm in both dogs and humans. Similar clinical presentation and overlapping histologic and immunohistochemical features of ONB with other intranasal neoplasms can make diagnosis and treatment of intranasal neoplasia challenging. Furthermore, in part because of their rarity, there is a lack of reporting on therapeutic regimen for these neoplasms. In humans, initial debulking surgery is usually followed by radiation therapy. Here we report on the histologic, immunohistochemical, and ultrastructural characteristics of canine ONB and report on the clinical progression of cases treated with radiation therapy. In all nine canine ONB examined here, neoplastic cells were arranged in a lobular manner amidst a prominent neurofibrillary matrix and had features consistent with Grade III (high grade) ONB. The neoplastic cells demonstrated positive immunohistochemical staining for TuJ-1, a Class III beta-tubulin neuronal cytoskeletal protein, and variable staining for other markers, including chromogranin, synaptophysin, AE1/AE3 and MAP2. The longest surviving case was treated with a regimen similar to that used in humans, consisting of debulking surgery followed by definitive radiation therapy. Our study found that TuJ-1 is a useful marker for ONB and that radiation therapy, even in cases of advanced disease, may result in prolonged survival.
KW - canine nasal tumours
KW - esthesioneuroblastoma
KW - olfactory neuroblastoma
KW - radiotherapy
KW - TuJ-1
UR - http://www.scopus.com/inward/record.url?scp=85068524300&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85068524300&partnerID=8YFLogxK
U2 - 10.1111/vco.12512
DO - 10.1111/vco.12512
M3 - Article
C2 - 31177641
AN - SCOPUS:85068524300
JO - Veterinary and Comparative Oncology
JF - Veterinary and Comparative Oncology
SN - 1476-5829
ER -