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Dr Catherine Zillberg has completed a six-month regional rotation at the Coffs Harbour Anatomical Pathology laboratory, where she was blown away by the sheer volume and complexity of cases, along with the stunning surf beaches and rainforests.
“I’ve always been interested in cancer and cancer research. Before starting in pathology, I was involved in research on head and neck cancers, keratinocyte cancers, and melanoma, which sparked my passion for understanding disease at a deeper level,” Catherine said.
“I’ve always enjoyed the science side of medicine, particularly the molecular aspects.
“My PhD supervisor is also a pathologist, and their mentorship helped me see how pathology can be both incredibly broad and highly specialised at the same time, which is what drew me to the field.”
Catherine studied medicine at the University of Sydney, made great friends and enjoyed the variety that medicine offered.
“During medical school, I had the chance to do a GP placement in Kiama, an emergency placement in Byron Bay, and a research placement at the Peter MacCallum Cancer Centre in Melbourne, where I worked in a breast cancer research lab.”
After graduating, Catherine completed her internship and residency at Gosford and Wyong Hospitals on the Central Coast and later worked as a locum doctor for a couple of years in regional NSW and outer Sydney.
“I worked in the Emergency Department as a medical registrar, which gave me broad clinical experience. Seeing the impact of accurate diagnoses and how much clinicians rely on pathology reinforced my interest in specialising in this field, where I could combine my love of science while contributing to patient care,” Catherine said.
Why Anatomical Pathology matters
Here at NSW Health Pathology our Anatomical Pathology (AP) services play a vital role in diagnosing disease, especially cancer.
As demand continues to grow, we face challenges in recruiting and retaining skilled staff in this highly specialised field.
We are tackling these challenges on multiple fronts, including strengthening our workforce pipeline by supporting the next generation of APs like Catherine, to ensure they are provided with high quality training and support.
In 2025, Catherine completed a six-month placement at Coffs Harbour at the beginning of her second year of pathology training.
“I really enjoyed my time in Coffs Harbour. The pathologists and laboratory staff were so welcoming and supportive, and the scientists were exceptionally skilled in cut-up, which gave me more time to focus on study and reporting.
“I was exposed to a wide range of cases, in fact I was surprised at the sheer volume and range of cases at Coffs Harbour, everything from biopsies to large surgical specimens, as well as community pathology cases. The pathologists also went out of their way to provide me with both interesting and routine slides, along with regular tutorials.
“Being in a smaller region also meant I got to know everyone on a more personal level compared with my experience in larger centres.”
Catherine said one of the most rewarding aspects of pathology is the constant learning.
“Even within a short time, I’ve seen how much my skills have grown.
“Six months ago, I often felt unsure of what I was looking at under the microscope, but now I can recognise patterns, understand what I’m seeing, and approach cases with greater confidence.
“The same goes for presenting at multidisciplinary team meetings and performing macroscopic cut-up. That sense of progress is incredibly motivating.
“I also love the teamwork. Pathology brings together pathologists, scientists, registrars, and clinicians. Everyone contributes their expertise to ensure patients receive the best possible care.
“Being part of that collaborative environment, and meeting so many inspiring colleagues along the way, has been one of the real highlights of my training.”
Enjoying the benefits of regional training
Catherine said in her spare time she loves being outdoors, surfing, hiking, running, or skiing.
“During my time in Coffs Harbour, I was able to do all these things. The surf beaches are stunning. I especially loved Diggers Beach, Woolgoolga Beach, and Sawtell Beach.
“My partner spent the six months there with me, and each weekend we would explore new towns and restaurants together, which made the experience even more special.”
“My partner spent the six months there with me, and each weekend we would explore new towns and restaurants together, which made the experience even more special.”

‘No day is the same’
For Catherine, the variety of tasks associated with Anatomical Pathology is what keeps her work interesting.
”A typical day starts with arriving at the lab, saying hello to everyone, and checking over the cases I dictated the day before,” she explains.
“During my time in Coffs Harbour, my colleague and I followed a loose study plan. Each week we’d focus on a different system or disease area. The pathologists would often leave us interesting slides to review, and we’d then discuss them, sit at the double-headed microscope with a pathologist, and present cases to each other.
“Cut-up was usually every second day, but even then, we still had plenty of time to review cases and study specific topics in detail.
She describes her training as a structured but supportive environment, where learning was built into the flow of the day.
Catherine is now back working in the AP laboratory at Prince of Wales Hospital in Sydney, where she is also enjoying the experience of being in a larger laboratory environment.
“Each centre has been special and unique in its own way.
“Ultimately, it’s a real privilege to be solving the puzzle of a person’s disease, and be part of a patient’s journey.”