Chordoma is a rare bone cancer that develops along the spine or at the skull base, affecting approximately one in every million people each year. While this disease grows slowly in most cases, its location near vital structures like the spinal cord and brain makes treatment challenging, and it often returns even after seemingly successful treatment.
Prognosis and Survival Outlook
Understanding the outlook for chordoma requires acknowledging both the medical realities and the individual nature of each case. This is a disease that demands patience and realistic expectations while maintaining hope. The prognosis, which refers to the likely course and outcome of the disease, varies considerably depending on several factors including the tumor’s location, how completely it can be removed during surgery, and the specific type of chordoma cells involved.
The overall five-year survival rate for chordoma is approximately fifty percent. This means that about half of people diagnosed with chordoma are still alive five years after diagnosis. However, this statistic represents an average across all types and stages of chordoma, and individual outcomes can differ significantly. Some people live much longer, while others face more aggressive disease progression.
Several factors influence prognosis. The most important is whether surgeons can completely remove the tumor with clear margins, meaning only healthy tissue remains around the surgical area. When this is achieved, patients have a better chance of living disease-free or even being cured. The location of the tumor also matters greatly. Chordomas at the base of the skull or in the mobile spine can be particularly difficult to remove completely because they grow very close to the brainstem, spinal cord, major blood vessels, and critical nerves.
The type of chordoma cells also affects outlook. The conventional or classic form, which accounts for eighty to ninety percent of cases, generally has a better prognosis than the dedifferentiated type. Dedifferentiated chordomas, which make up less than five percent of cases, tend to grow faster and spread to other parts of the body more readily, leading to a more challenging prognosis.
One of the most difficult aspects of chordoma prognosis is the high rate of recurrence. Even after successful surgery and radiation therapy, chordomas tend to come back, usually in the same location as the original tumor. Additionally, in thirty to forty percent of cases, the disease eventually spreads to distant parts of the body, most commonly the lungs, nearby lymph nodes, other bones, liver, or skin.
Natural Progression of the Disease
If left untreated, chordoma follows a pattern of slow but relentless growth that gradually causes increasing problems. Unlike some cancers that grow rapidly, chordoma typically develops over months or even years before symptoms become obvious enough to prompt medical attention. This slow growth pattern can be deceptive, as people may not realize something serious is happening until the tumor has reached a considerable size.
In the early stages, chordoma may cause no symptoms at all. The tumor begins as a small cluster of abnormal cells arising from remnants of the notochord, which is a structure that forms during fetal development to help organize the developing spine. Normally, the notochord disappears after birth, but occasionally some cells remain. In very rare instances, these leftover cells eventually become cancerous and form a chordoma tumor.
As the tumor grows, it begins to press on nearby structures. Because chordomas develop along the spine or at the skull base, this pressure affects the nervous system. The specific symptoms depend on the tumor’s location. A chordoma at the skull base gradually pushes against the brain, brainstem, or cranial nerves, eventually causing headaches, vision problems such as double or blurred vision, facial numbness, or difficulty with speech and swallowing. A tumor in the lower spine or tailbone region grows into the space where nerves exit the spine, leading to persistent back pain, numbness or weakness in the legs, and eventually problems controlling bladder or bowel function.
Without treatment, the tumor continues to enlarge and invade surrounding tissues. Chordomas are described as locally aggressive, meaning they tend to grow into nearby bones, muscles, nerves, and blood vessels rather than immediately spreading throughout the body. However, as time passes, the tumor can destroy bone structures, compress vital nerves, and interfere with normal bodily functions in increasingly severe ways.
Eventually, in about one-third to forty percent of untreated cases, chordoma cells break away from the original tumor and travel through the bloodstream or lymphatic system to establish new tumors in distant organs. This process, called metastasis, most commonly affects the lungs but can also involve lymph nodes, other bones, the liver, or skin. Once metastasis occurs, the disease becomes much more difficult to manage and the outlook becomes considerably worse.
Possible Complications
Living with chordoma brings the risk of various complications, some related to the tumor itself and others arising from the treatments necessary to fight it. Understanding these potential problems helps patients and families prepare and respond appropriately when difficulties arise.
The tumor’s growth can cause progressive neurological deficits, which means loss of normal nerve function. When a chordoma presses against the spinal cord or important nerves, it can cause weakness or paralysis in the arms or legs. People may lose sensation in certain areas of their body or experience abnormal sensations like tingling, burning, or numbness. If the tumor affects nerves controlling the bladder and bowels, it can lead to incontinence or difficulty emptying these organs, requiring catheterization or other interventions.
Chordomas at the skull base can compress cranial nerves that control eye movement, facial sensation and movement, hearing, swallowing, and voice production. This can result in permanent double vision, facial paralysis, difficulty swallowing that increases the risk of choking or aspiration pneumonia, or voice changes. When the tumor presses on the brainstem, which controls vital functions like breathing and heart rate, life-threatening complications can develop.
The disease can also cause chronic pain that becomes increasingly difficult to control. As the tumor grows into bone and compresses nerves, pain may progress from occasional discomfort to constant, severe pain requiring strong medications. Some people develop neuropathic pain, a type of nerve pain that feels like burning, shooting, or electric sensations and can be particularly difficult to treat with standard pain relievers.
Surgical treatment, while necessary, carries its own risks of complications. Because chordomas grow in areas surrounded by critical structures, surgery can damage nerves, blood vessels, or the spinal cord itself. Depending on the tumor’s location and size, surgery might result in paralysis, loss of bowel or bladder control, difficulty swallowing, voice problems, or other permanent disabilities. Infection is always a risk with surgery, and operations on the spine or skull base can sometimes lead to cerebrospinal fluid leaks, which require additional treatment.
Radiation therapy, another essential treatment, can cause side effects both during treatment and months or years later. Early effects might include fatigue, skin irritation, and inflammation of tissues near the treatment area. Late effects can include damage to the spinal cord or brain, hormone deficiencies if the pituitary gland is affected, hearing loss, vision problems, or rarely, the development of a new cancer in the radiated area many years later.
When chordoma spreads to other parts of the body, new complications arise. Lung metastases can cause breathing difficulties, coughing, and reduced oxygen levels. Bone metastases in weight-bearing bones can cause fractures. Liver metastases can interfere with normal liver function. The cumulative effect of metastatic disease often includes significant weight loss, profound fatigue, and overall decline in health.
Psychological and emotional complications are also common and should not be overlooked. The stress of living with a rare cancer, undergoing difficult treatments, facing an uncertain future, and dealing with physical limitations can lead to anxiety, depression, sleep disturbances, and strain on relationships. These mental health impacts are real medical complications that deserve attention and treatment.
Impact on Daily Life
Chordoma affects every aspect of daily living, from the most basic physical activities to emotional wellbeing, relationships, work, and future planning. The impact begins even before treatment starts and continues through treatment and into the survivorship period, with challenges that change over time.
Physical limitations often become one of the most obvious impacts. Pain, whether from the tumor itself or as a side effect of treatment, can make simple activities exhausting. Getting out of bed, walking, sitting for extended periods, or standing may all become difficult. Some people need mobility aids like walkers, wheelchairs, or canes. If the tumor or treatment affects the arms or hands, tasks like cooking, dressing, writing, or typing may require adaptation or assistance.
Neurological effects can dramatically change daily routines. Weakness in the legs might make climbing stairs impossible, requiring changes to living arrangements. Bladder or bowel control problems necessitate planning around bathroom access and may require protective garments or catheterization, which can be both physically uncomfortable and emotionally distressing. Vision problems like double vision make activities like reading, watching television, driving, or even walking safely more challenging.
Fatigue is one of the most commonly reported and most disabling symptoms. Unlike ordinary tiredness that improves with rest, cancer-related fatigue is a profound exhaustion that persists despite sleep. Many chordoma patients report that even small activities leave them completely drained for hours or days. This type of fatigue can make it impossible to work full-time, participate in social activities, or maintain previous levels of household responsibilities.
Work life almost always requires adjustments. Some people can continue working during treatment, perhaps with reduced hours or accommodations like working from home. Others need to take extended medical leave or stop working entirely, either temporarily or permanently. This loss of work affects not only income and financial security but also sense of identity, daily structure, and social connections with colleagues.
Relationships face particular strain. Family members and close friends often take on caregiving roles, which can change relationship dynamics. Patients may feel guilty about needing help or frustrated at losing independence. Partners may struggle to balance being a caregiver with maintaining their role as a spouse or significant other. Communication about fears, needs, and expectations becomes crucial but can be difficult when everyone is stressed and worried.
Social life often contracts. Treatment schedules, fatigue, physical limitations, and mood changes can make maintaining friendships difficult. Some people find that friends who don’t understand the reality of living with cancer gradually drift away, while others feel isolated because they can no longer participate in activities they once enjoyed. Social isolation can worsen depression and anxiety.
Hobbies and recreational activities may need modification or abandonment. Sports and physical activities might become impossible if the tumor or treatment affects mobility, balance, or strength. Even sedentary hobbies can be affected if pain, fatigue, or cognitive effects from treatment make concentration difficult.
Planning for the future becomes complicated. Young adults with chordoma face particular challenges around education, career development, starting families, and other major life milestones. The uncertainty about recurrence makes it difficult to commit to long-term plans. Financial planning becomes critical but stressful, as people consider insurance coverage, the possibility of disability, estate planning, and end-of-life wishes.
Support for Family Members
When someone is diagnosed with chordoma, the entire family is affected. Family members, particularly close relatives and caregivers, face their own set of challenges while trying to support their loved one. Understanding how families can help, particularly regarding clinical trials and treatment decisions, is important for everyone involved.
One of the most valuable ways families can help is by learning about chordoma alongside the patient. Because this cancer is so rare, most doctors outside specialized centers have limited experience with it. Family members can help research treatment options, identify experienced specialists, and understand what questions to ask. They can accompany the patient to medical appointments, take notes during discussions with doctors, and help process complex medical information afterward when the patient may be overwhelmed.
Understanding clinical trials is particularly important for families dealing with chordoma. Clinical trials are carefully monitored research studies that test new treatments or new combinations of existing treatments. Because chordoma is rare and conventional chemotherapy has not proven effective, clinical trials represent important treatment options, especially when the disease recurs or spreads to other organs.
Families can help by researching available clinical trials. Several organizations maintain databases of ongoing trials specifically for chordoma. The Chordoma Foundation, for example, provides assistance in finding and understanding clinical trial options. Families can review eligibility criteria for trials, help gather medical records needed for trial enrollment, and assist with the logistics of participating, which might include travel to distant treatment centers.
It’s important for families to understand that participation in clinical trials is voluntary and comes with both potential benefits and risks. Trials may offer access to promising new treatments not otherwise available, and participants receive close monitoring from research teams. However, new treatments may have unknown side effects, and there’s no guarantee the experimental treatment will be more effective than standard care. Families can help by encouraging thoughtful consideration of these factors without pressuring the patient in either direction.
Families can also assist with the practical aspects of participating in trials. This might include coordinating travel and accommodation if the trial is at a distant center, managing the schedule of frequent monitoring visits, keeping track of medication schedules and side effect reporting requirements, and communicating with the research team about any concerns or complications.
Beyond clinical trials, families provide crucial emotional support. Living with chordoma involves fear, uncertainty, grief over losses, and stress. Family members can help by listening without trying to fix everything, acknowledging difficult feelings, maintaining hope without denying reality, and simply being present. Sometimes the most helpful thing is to sit quietly with someone, offering companionship rather than solutions.
Practical support is equally important. Families often help with transportation to medical appointments, meal preparation, household tasks, managing medications, coordinating care among different specialists, handling insurance and billing issues, and advocating for the patient’s needs with healthcare providers. This caregiving work, while essential, can be exhausting and stressful.
Families should also recognize their own needs for support. Caring for someone with chordoma is emotionally and physically demanding. Family members benefit from their own support systems, whether through friends, support groups for caregivers, counseling, or respite care that provides breaks from caregiving responsibilities. Taking care of themselves enables family members to provide better, more sustainable support for their loved one.
Communication within the family is crucial but can be complicated. Different family members may have different coping styles, levels of medical understanding, or opinions about treatment decisions. Some may want detailed information while others prefer to know less. Finding ways to respect these differences while maintaining open channels of communication helps reduce conflict and ensures everyone feels heard.
For families with young children, additional considerations arise. Parents need to decide what and how much to tell children about the diagnosis, adapting the information to the child’s age and emotional maturity. Children benefit from honest, age-appropriate information that helps them understand what’s happening while reassuring them about how they will be cared for.
Financial advocacy is another area where families often play a crucial role. Chordoma treatment can be extremely expensive, involving specialized surgeries, advanced radiation techniques, multiple imaging studies, and possibly experimental therapies. Families can help by understanding insurance coverage, appealing denied claims, exploring financial assistance programs, and managing the practical consequences of medical costs.
