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We'll be back in 2026!

Topics in Veterinary Oncology 2026:
Sat 14 & Sun 15 March
'Tumors of the Head'

complete the 'Sign Up' form below and we'll keep you posted!

Take a look back at the 2025 congress âž›

A B O U T

Topics in Veterinary Oncology is an onsite & online congress on Small Animal Clinical Oncology

Topics in Veterinary Oncology (formerly ONCOlogisch Treffen or the Dutch International

Veterinary Oncology Conference) has been organized for the past 20 years

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The congress' subject is always centered around 1 topic.

This can be: â€‹

an organ system (GI, respiratory, skin...),

a tumor type (neuro-endocrine, soft tissue sarcomas...),

a species (feline) or

a presentation (emergency oncology)

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The subject is always discussed in-depth by:

a medical oncologist,  a surgical oncologist, a radiotherapist,

a diagnostic imager and/or a pathologist (depending on the subject)

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congress language is English

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Read all about our former congresses here:

Schedule

SCHEDULE

preliminary program

day 1, Saturday 14 March 2026

chairwoman: dr. Ruth Fortrie (dipl.ECVS)

 

08.30 Registration & coffee

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09.00 Congress opening

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Session on Ocular Tumors in dogs & cats

'Is it just a surgical disease...?'


09.15 Ocular melanoma, Squamous cell carcinoma of the eyelid, Membrana nictitans as a special entity, Mast cell tumor (conjunctiva and peri-orbital), other tumors: dr. Rick Sanchez (ophtalmologist)​​​​

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10.15 Radiotherapy and the eyes: how to prevent the eyes from (collateral) damage during RT, early & late side-effects: dr. Juan Serra (radiotherapist)

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10.30 Coffee break

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Session on Ear Tumors in dogs & cats

'Can you hear them whispering...?'

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11:00 Nasopharyngeal and ear polyps, Ceruminous gland adenocarcinoma, Mast cell and other tumors: dr. Gert ter Haar (ENT surgeon)

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11:45 Time for questions & panel discussion, all speakers

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12:00 Lunch 

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13.15 Key-note lecture: Past, Present & Future of Head & Neck Surgery: dr. Jan Jaap Hendrickx (MD)

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14.00 Time for questions and panel discussion​

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Session on Brain Tumors in dogs & cats

Part 1

Overview

 

14.15 Overview of small animal Brain Tumors, ddx, clinical presentation, 1st line vs referral, radiologic appearance and staging : dr. Niklas Bergknut (neurologist)

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15.00 Coffee break 

 

Session on Brain Tumors in dogs & cats

Part 2

'Use your brain: what should you do?'

 

15.30 Surgical options (biopsy, curative vs palliative, ethical aspects), medical options: dr. Niklas Bergknut (neurologist)

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15.10 Radiotherapy of Brain Tumors: dr. Juan Serra (radiotherapist)

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16.30 Time for questions & panel discussion 

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17.00 Welcome-drink at the bar offered by the Collaborative Veterinary Cancer Centers 

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19.00 Dinner & Live music (BAND) & 'BBB' ('Booze, Bed & Brain', all options to process the incoming information)

 

 


Day 2, Sunday 15 March 2026

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Chairwoman: Ruth Fortrie (dipl.ECVS)

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08.30 Good morning & coffee

 

Session on Intranasal tumors in dogs & cats

part 1

Overview

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09.00 Feline & canine nasal lymphoma, adenocarcinoma, SCC of the planum nasale, other tumors (clinical and radiological appearance, rhinoscopy, pitfalls & cases): dr. Gert ter Haar (ENT surgeon)

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Session on Intranasal tumors in dogs & cats

part 2

'How can we make them sniff again?'

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09.45 Surgical (non-endoscopic) & medical options for intranasal tumors: dr. Gert ter Haar (ENT surgeon) 


       
09.05 Radiotherapy for nasal tumors: dr. Juan Serra (radiotherapist)

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10.30 Coffee break 

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Session on Intranasal tumors in dogs & cats

part 3

Ear Nose Throat (ENT) interventional procedures

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11:00 ENT interventional procedures in Head & Neck neoplasia (endoscopic management of nasal cavity tumors, endoscopic guided intranasal electrochemotherapy, transarterial embolization as coadjuvant treatment for bleeding intranasal tumors, exoscopic transoral approach to laryngeal selected cases): dr. Fausto Brandao (interventional surgeon)

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11.45 Time for questions & panel discussion

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12.00 Announcement winner of Dutch Animal Cancer Foundation - Johan de Vos Research Award 


awarded by Dr. Bart de Leeuw

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12.15 Lunch

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Session on Oral tumors in dogs & cats

part 1 

 

13.30 Oral melanoma, osteosarcoma, fibrosarcoma, SCC, papillary SCC, salivary gland carcinoma: dr. Gert ter Haar (ENT surgeon)

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14.10 role of NIFR in lymphadenectomy for head tumors: dr. Fausto Brandao (surgeon)

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14.30 Time for questions and panel discussion

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14.45 Coffee break

 

Session on Oral tumors in dogs & cats

part 2 

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15.15 Radiotherapy (intra- & extra-oral) for oral tumors in dogs and cats: dr. Juan Serra​

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15.45 Benign oral tumors (plasmacell tumors, dental epulis, odontoma/acanthomatous ameloblastoma): dr. Gert ter Haar (ENT surgeon)

 

 

16.15 Time for questions & panel discussion

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16.30 Conference closing ceremony​​​

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