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In short
What Is a Frontal Lobe Tumor?
A frontal lobe tumor is an abnormal growth in the front part of the brain, just behind the forehead. Depending on its type, it can be benign or malignant.
The frontal lobe controls planning, judgment, personality and voluntary movement. In most people, the left frontal lobe also produces speech. Therefore, a tumor here changes how a person thinks, behaves and moves.
These changes often start slowly. As a result, families notice them before the patient does. Then, an MRI scan confirms the diagnosis, and surgery is the main treatment for most frontal lobe tumors.
What does the frontal lobe do?
The frontal lobes are the largest lobes of the brain. For this reason, they handle many functions at once, and a tumor can affect several of them together.
- Planning and decisionsOrganizing tasks, solving problems, judging risk
- PersonalitySocial behavior, self-control and motivation
- Attention and memoryFocus and short-term working memory
- MovementThe motor strip moves the opposite side of the body
- SpeechBroca's area, usually on the left, forms words
- Bladder controlThe inner surface helps control urination
Which Symptom Brought You Here?
First, pick the change you or your family noticed. Then, each link explains why a frontal lobe tumor can cause it.
- 01Personality or behavior changeApathy, irritability, poor judgment or loss of inhibition
- 02A first seizure in adulthoodJerking of one side of the body, or a sudden loss of awareness
- 03Trouble planning or concentratingLosing track of tasks, slowed thinking, new forgetfulness
- 04Weakness or speech difficultyWeak arm or leg on one side, struggling to find or form words
- 05Morning headaches or vomitingSigns of raised pressure inside the skull
Frontal Lobe Tumor Symptoms
Symptoms depend on the tumor's size, speed of growth and exact position. However, most patients have one or more of the groups below.
The first signs are often subtle. For example, families may notice apathy, irritability or a drop in work performance long before any headache. In other patients, however, a sudden seizure is the very first sign.
Personality and behavior
Above all, the frontal lobe shapes character and self-control. Therefore, a tumor can make a person seem "different" to their family.
- Apathy and loss of motivation, often mistaken for depression
- Irritability, mood swings or inappropriate remarks
- Poor judgment, for example with money or safety
- Reduced insight: the patient may not notice the change
Seizures
Seizures are a common first sign, especially with slow-growing gliomas. In addition, frontal lobe seizures are often short. For example, they may start with jerking of one arm or the face, or with odd movements during sleep.
Therefore, a first seizure in an adult always needs a brain MRI.
Thinking and concentration
- Difficulty planning, organizing or finishing tasks
- Slowed thinking and short attention span
- Problems with working memory
Movement and speech
The back part of the frontal lobe controls movement on the opposite side of the body. As a result, a right-sided tumor weakens the left arm or leg.
Broca's area, usually in the left frontal lobe, produces speech. Consequently, a tumor there can cause halting speech and trouble finding words, while understanding stays intact.
Raised pressure and other signs
- Headaches that are worse in the morning or when lying down
- Nausea and vomiting
- Loss of smell, typical of tumors under the frontal lobes
- Loss of bladder control in some large or midline tumors
- Blurred vision from swelling of the optic nerve
Left or right frontal lobe: does it matter?
Yes, the side changes the picture. A left frontal tumor more often affects speech and weakens the right side of the body. In contrast, a right frontal tumor more often changes behavior and attention, and weakens the left side.
How do symptoms progress?
- Slow-growing tumors change behavior gradually over months or years.
- Fast-growing tumors can cause weakness or confusion within weeks.
- Later signs include morning headaches, vomiting and drowsiness from raised pressure.
Questions at this stage
What are the earliest signs of a frontal lobe tumor?
The earliest signs are usually small changes in personality, motivation or concentration. In some people, a first seizure appears before any other sign.
Can a frontal lobe tumor cause depression-like symptoms?
Yes. Apathy, low motivation and withdrawal are common. However, they come from pressure on brain tissue, not from a mood disorder alone. New symptoms after age 40, or symptoms with headaches or seizures, need an MRI.
Can a frontal lobe tumor go unnoticed for years?
Yes. The frontal lobe is large, and slow-growing tumors such as meningiomas or low-grade gliomas can become big before they cause clear symptoms.
When to See a Doctor
Most headaches and mood changes have other causes. Still, some patterns deserve a prompt neurological check.
Book a doctor's visit if you notice:
- A personality change that family members keep pointing out
- New headaches that get worse over weeks
- Growing trouble with planning or concentration at work
- A new loss of smell without a cold
Seek emergency care for:
- A first seizure
- A sudden, severe headache
- Weakness or speech loss that appears or worsens quickly
- Confusion or unusual drowsiness
In most cases, a brain MRI answers these questions quickly. If it shows a tumor, the next step is a consultation with a brain tumor neurosurgeon. Also, you can compare these signs with other brain tumour symptoms.
Types of Frontal Lobe Tumors
Several tumor types grow in or press on the frontal lobe. Moreover, the type decides the treatment and the outlook.
| Tumor type | Behavior | Typical treatment |
|---|---|---|
| Low-grade glioma (astrocytoma, oligodendroglioma) | Slow-growing; often presents with seizures. The frontal lobe is the most common site for oligodendroglioma. | Maximal safe surgical removal, then follow-up or further treatment based on molecular results |
| High-grade glioma (including glioblastoma) | Fast-growing and malignant; symptoms progress over weeks | Surgery followed by radiotherapy and chemotherapy |
| Meningioma (convexity, falx, olfactory groove) | Usually benign; grows from the brain's covering and presses on the lobe | Surgery; observation or radiosurgery for small tumors |
| Brain metastasis | Spread from cancer elsewhere, such as the lung or breast | Surgery, radiosurgery or both, together with oncology care |
For detailed guides, read about meningioma and metastatic brain tumors.
Is a frontal lobe tumor always cancer?
No. Meningiomas and many low-grade tumors are not cancer in the usual sense. However, even a benign tumor can damage the brain as it grows, so it still needs expert care.
What Causes a Frontal Lobe Tumor?
In most cases, doctors cannot find a single cause. Instead, a mix of genetic changes inside brain cells seems to start the growth.
However, doctors do know a few risk factors:
- Previous radiation to the head, for example in childhood cancer treatment
- Inherited syndromes such as neurofibromatosis types 1 and 2 or Li-Fraumeni syndrome
- Age and sex: gliomas are more common in adults, and meningiomas are more common in women
- Cancer elsewhere in the body, which can spread to the brain as a metastasis
Importantly, stress does not cause a frontal lobe tumor, and neither does anything the patient did. In fact, most people with these risk factors never develop a brain tumor.
How Frontal Lobe Symptoms Differ From Other Brain Tumors
In fact, each part of the brain has its own job. Therefore, the location of a tumor predicts its symptoms better than its type.
| Location | Main job | Typical tumor symptoms |
|---|---|---|
| Frontal lobe | Personality, planning, movement, speech | Behavior change, seizures, one-sided weakness, halting speech |
| Temporal lobe | Memory, hearing, understanding language | Seizures with odd smells or déjà vu, memory loss, trouble understanding speech |
| Parietal lobe | Touch, sense of position, spatial skills | Numbness, clumsiness, trouble with reading, writing or directions |
| Occipital lobe | Vision | Loss of part of the visual field, flashing lights |
| Cerebellum | Balance and coordination | Unsteady walking, clumsy hands, headache with vomiting |
In short, frontal lobe tumors stand out because they change who a person is before they change what the person can see or feel.
Your treatment path
From Diagnosis to Recovery
Treatment follows four steps. In turn, each step answers one question: what is it, where exactly is it, how do we remove it safely, and what comes next.
STEP 01
Diagnosis: what is the tumor?
Diagnosis starts with a neurological examination. Then, an MRI with contrast shows the tumor's size, position and the swelling around it.
- MRI vs. CT: a CT scan is fast and useful in an emergency, and it shows bleeding and bone well. However, an MRI shows brain tissue in far more detail, so doctors use it to diagnose and plan.
- Perfusion MRI and MR spectroscopy help estimate how aggressive the tumor is.
- Pathology after surgery gives the final diagnosis, including molecular markers such as IDH and 1p/19q.
Is a CT scan enough to diagnose a frontal lobe tumor?
A CT scan can show a mass. However, planning treatment requires an MRI with contrast, because it shows the tumor and nearby brain structures in much more detail.
STEP 02
Planning: where are the critical areas?
Before surgery, the team maps the brain areas that control speech and movement. For example, functional MRI shows active regions, and tractography (DTI) shows the nerve pathways around the tumor.
As a result, this map decides the safest route to the tumor and how much of it the surgeon can remove without new deficits. In addition, a tumor board of neurosurgeons, oncologists and radiologists reviews complex cases together.
STEP 03
Surgery: maximal safe removal
The goal is to remove as much tumor as possible while protecting function. For gliomas, research links a more complete removal with longer survival. Therefore, surgeons use several tools for this:
- Neuronavigation guides the surgeon to the tumor, much like GPS.
- Intraoperative neuromonitoring warns the team when a movement pathway is near.
- Awake craniotomy lets the patient speak during surgery when the tumor sits near the speech area.
- Fluorescence guidance can make some high-grade tumor tissue glow under special light.
Is awake brain surgery painful?
No. Local anesthesia numbs the scalp, and the brain itself does not feel pain. The patient is asleep for the opening and closing, and awake only for the mapping part.
STEP 04
Recovery and further treatment
Most patients stay in hospital for several days after frontal lobe surgery. Afterward, many return to light daily activities within a few weeks. Some also need physiotherapy or speech therapy.
Next, the pathology result decides whether more treatment follows:
- Radiotherapy targets remaining tumor cells, usually in daily sessions over several weeks. For small tumors or metastases, a single focused session called radiosurgery may be enough.
- Chemotherapy, often temozolomide tablets, is standard for many gliomas.
- Follow-up MRI scans then track the result at regular intervals.
Does personality return to normal after surgery?
Often it improves once surgery relieves pressure on the brain. However, recovery varies. Some changes settle over months, and rehabilitation helps both the patient and the family.
When can international patients fly home?
Your surgeon decides this after the post-operative check. In general, patients fly once the wound is healing well and their condition is stable.
Frontal Lobe Tumor Surgery in Istanbul
Prof. Dr. Serdar Baki Albayrak
Neurosurgeon · Brain Tumor and Skull Base Surgery
Frontal lobe surgery is a balance between removing the tumor and protecting the patient's personality, speech and movement. Therefore, surgical experience and careful planning shape the outcome.
27+Years
5,000+Operations
64Countries
Figures from Prof. Albayrak's professional profile, September 2026.
Request an AppointmentFrequently Asked Questions
What happens if you have a tumor in your frontal lobe?
As the tumor grows, it presses on nearby brain tissue. This pressure causes the changes in behavior, movement or speech described above. With timely diagnosis and treatment, many patients return to work and family life.
What is the survival rate after frontal lobe tumor surgery?
It depends almost entirely on the tumor type and grade. Many patients with meningioma or low-grade glioma live for many years after treatment. Your surgeon can explain the outlook once the pathology result is known.
Can a frontal lobe tumor be removed completely?
Often, yes. Surgeons can often remove meningiomas and many low-grade tumors completely. Gliomas grow into brain tissue, so the aim is maximal safe removal, followed by other treatments when needed.
Which doctor treats frontal lobe tumors?
A neurosurgeon who specializes in brain tumors leads treatment, together with neuro-oncology and radiation teams. Prof. Dr. Serdar Baki Albayrak is one such surgeon in Istanbul.
Prof. Albayrak's Published Research
Peer-reviewed articles and book chapters written or co-written by Prof. Dr. Serdar Baki Albayrak on brain tumor surgery and research. Each link opens the record on PubMed or at the publisher. The full list of his 33 publications is on his profile.
- Intra-operative magnetic resonance imaging in neurosurgery
- The Origin of Meningiomas
- The effects of tibolone on the human primary glioblastoma multiforme cell culture and the rat C6 glioma model
- Cerebral metastasis of small-cell lung carcinoma mimicking a supratentorial cystic astrocytoma
Public health information
- National Cancer Institute. Adult Central Nervous System Tumors Treatment (PDQ), patient version.
- National Institute of Neurological Disorders and Stroke. Brain and Spinal Cord Tumors.
- NHS. Brain tumours.
This page gives general medical information and does not replace a consultation. Diagnosis and treatment decisions need an examination by your own doctor.
Plan Your Treatment in Istanbul
Request an appointment with Prof. Dr. Serdar Baki Albayrak. The clinical team then guides international patients through every step of the visit.
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