A tail of two dogs: One fight for survival, one gift that saves a life

René Bosman
13 January 2026

In the bustling corridors of Craighall Veterinary Hospital, an extraordinary story unfolds. One of life, courage, and quiet heroism. Max, a spirited Husky/Malamute mix with striking eyes and a calm, trusting temperament, prepares to give the gift that could save a fellow dog battling for life against a devastating diagnosis.

The patient arrived at Craighall in critical condition, where Dr Elliott’s colleague quickly assessed him and diagnosed severe anaemia resulting from internal bleeding caused by a splenic mass – later diagnosed on histopathology as splenic haemangiosarcoma (HAS), an aggressive cancer most common in older, large-breed dogs, though occasionally seen in other breeds.

“This is a cancer that often presents late, after significant blood loss has already occurred,” Dr Elliott explains. “The standard treatment is a splenectomy, but survival times are not long. Chemotherapy (ChT) is sometimes offered post-surgery, but it rarely extends life long enough to justify the stress and cost for most owners.”

Immediate intervention in this case was crucial. When a dog’s haematocrit drops <20% due to blood loss — far below the normal 37%–55% range — a blood transfusion becomes necessary.

We were working against time, stabilising him so that surgery was possible. His condition was severe, and without rapid action, he may not have survived long enough to receive life-saving treatment, Dr Elliott recounts.

Enter Max: A paw above the rest
Dogs have eight recognised blood types — dog erythrocyte antigen (DEA) 1.1, 1.2, 3, 4, 5, 6, 7, and 8. Of these, DEA 1.1-negative is the most valuable for transfusion medicine, as it is compatible with virtually any recipient. Max, a playful and much-loved member of the Kaplan family since five-months old, happens to carry this preferred blood type.

“When we learned that Max is a universal donor, it felt like discovering he has a superpower. The idea that he can literally save other dogs’ lives is astonishing,” says his owner, Gabi.

When duty called: Max stepped up
The day Max was called to donate required careful planning. Canine donors must weigh >25kg, be between one- and nine-years old (Max is 2.5-years), be in excellent health, free of parasites, vaccinated, and have a calm, trusting temperament suitable for the clinical environment. Max ticked every box.

His health screenings were clear, and his temperament exemplary. While some donors require mild sedation to remain calm during the procedure, Max remained cooperative and relaxed throughout, says Dr Elliott.

“For me, watching him step into this role was profoundly moving,” Gabi reflects. “He laid there, this big, gentle soul, while his blood was collected. He did not seem anxious or afraid. It felt like he somehow understood he was helping, and I was filled with pride.”

The blood collection process is meticulous. After clipping and cleaning the jugular area, blood is drawn aseptically into a collection bag containing anticoagulant. One unit (roughly 350–450ml) is collected over five- to ten-minutes. Donors are then monitored to ensure full recovery.

Meanwhile, the recipient undergoes full diagnostic testing, including blood work, X-rays, and abdominal ultrasound, to confirm the diagnosis and plan surgery. The transfusion is prepared and administered with precision.

A delicate balance: The art and science of transfusion
The transfusion process itself is delicate. Over four- to six-hours, the recipient’s vital signs are continuously monitored for immune and non-immune reactions. Non-immunologic complications are rare with careful donor selection, but immune reactions — ranging from mild hypersensitivity to acute haemolytic shock — can occur.

“We monitor heart rate, respiration, temperature, mucous membrane colour, capillary refill, and urine output,” Dr Elliott explains. “Early detection is key. Fortunately, Max’s blood was perfectly compatible, and the recipient tolerated the transfusion beautifully.”

With the patient stabilised, the veterinary team proceeded with the splenectomy — surgery that would not have been possible without Max’s life-saving contribution.

Recovery and reflection
For Max, the donation was a brief interruption in a day otherwise filled with play and affection. “He was a little subdued for about 24-hours,” Gabi says, “but by the next afternoon, he was back to his bouncy, playful self. No long-term effects — just a few extra treats for being such a good boy.”

Dr Elliott is candid about the long-term outlook of patients with HAS: “HAS is aggressive and often metastasises early. Even with surgery and transfusion, the prognosis is guarded — perhaps four- to six- months. But those months are precious, and they would not have been possible without Max’s gift.”

The emotional reward of witnessing such an act cannot be overstated. “Knowing that Max’s donation saved another dog’s life is incredible,” Gabi reflects. “It was one of the most meaningful experiences we have had as pet owners.”

The broader impact of canine blood donation
While Max’s story tugs at the heart, it also underscores a vital aspect of modern veterinary care: The importance of canine blood transfusions. Once considered highly specialised, these procedures are now routine in trauma, poisoning, immune-mediated diseases, and surgical emergencies.

“Blood transfusions are a cornerstone of veterinary medicine,” Dr Elliott notes. “They give dogs a fighting chance and allow us to perform life-saving procedures safely and effectively.”

Inspiring others
Both Dr Elliott and Gabi hope Max’s story inspires other dog owners to consider participation in donor programmes. “If your dog meets the health and temperament criteria, it is a truly remarkable way to help,” Gabi encourages. Dr Elliott adds that dogs like Max — calm, healthy, and willing — literally make the difference between life and death. It is an extraordinary opportunity to impact multiple lives.

Beyond the clinic
As Max resumes his daily routine, his contribution represents more than a single procedure. It embodies the bond between humans and animals, the generosity of pet owners, and the dedication of veterinary professionals committed to saving lives.

“Max does not know he is a hero,” Gabi says. “But he is. And I am proud we are part of something so meaningful.” For Dr Elliott, moments like these are a daily reminder of why she pursues veterinary medicine. “Every day, we have the opportunity to make a difference — sometimes through surgery, sometimes medication, and sometimes through the simple act of one dog helping another.”

In a world often focused on divisions, Max’s story reminds us of something fundamental: The power of giving, the importance of community, and the extraordinary outcomes that occur when we choose to help one another.

Understanding HAS: The most common malignant spleen tumour

HAS, an aggressive cancer originating from the cells that form blood vessels (vascular endothelium), is the most common malignant disease of the spleen. HAS often progresses silently, with little to no early signs, but can present suddenly as a life-threatening emergency due to internal bleeding. The cancer tends to metastasise rapidly, making prognosis generally poor. While there is no cure, surgical removal and ChT can help slow disease progression and prolong quality life.^1,2

Causes, risk factors, and clinical signs
The exact cause of HSA is unknown, but genetic predisposition is suspected, with higher incidence in breeds such as German Shepherds, Golden Retrievers, and Labrador Retrievers.²Symptoms depend on the tumour location and may be subtle initially, including:^1,2,3

Lethargy or weakness
Exercise intolerance
Reduced appetite.

In cases involving the spleen, tumours can rupture, causing severe, often life-threatening signs:²

Collapse or sudden weakness
Difficulty breathing
Pale gums
Sudden death.

Diagnosis
Veterinarians may suspect HAS in dogs presenting with collapse, internal bleeding (haemoabdomen), or pericardial effusion, or when a mass is incidentally found during routine exams. Diagnostic workup typically includes:²

Blood tests to assess overall health
Imaging such as abdominal ultrasound, chest radiographs, computed tomography scans
Echocardiography for suspected heart tumours.

Definitive diagnosis requires a biopsy of the tumour when surgically accessible. Without a biopsy, HAS should be suspected based on clinical signs and imaging.²

Treatment

Surgery and ChT: The preferred approach is surgical removal of the tumour (eg splenectomy for splenic HAS) followed by ChT, which can delay metastatic progression. ChT usually involves intravenous (IV) drugs such as doxorubicin every three weeks for a series of treatments, along with ongoing monitoring.^1,2,3
Radiation therapy: May be considered for non-resectable tumours often combined with systemic ChT.^1,2,3
Supportive care: Dogs may require blood or plasma transfusions and IV fluids if significant bleeding occurs.^1,2,3

Prognosis
HSA carries a guarded prognosis. Without ChT, surgery alone is often largely palliative. Less than 10% of dogs survive beyond one year, as microscopic metastases are often present at diagnosis.²

Practice pearls for vets

Rapid recognition saves lives: HAS often presents suddenly after significant internal bleeding. Rapid assessment and stabilisation are critical for survival.
Critical role of blood transfusions: Dogs with haematocrit <20% require prompt transfusion. Universal donors like Max (DEA 1.1-negative) can be life-saving in emergencies.
Surgery plus ChT: Splenectomy followed by ChT (eg doxorubicin) is the mainstay for HAS, improving survival from ~2 months to four- to six-months while maintaining quality of life.
Breed predisposition matters: German Shepherds, Golden Retrievers, and Labrador Retrievers are at higher risk. Maintain a high index of suspicion in these breeds presenting with collapse or anaemia.
Subtle clinical signs require vigilance: Early HAS may be asymptomatic or show vague signs (lethargy, decreased appetite, exercise intolerance), so incidental findings on imaging should not be ignored.
Comprehensive donor programmes enhance outcomes: Maintaining a pool of healthy canine blood donors ensures rapid access to compatible blood, enabling critical interventions and life-saving surgeries.

References