脳腫瘍Brain Tumors

さまざまな種類の脳腫瘍に対して、脳への損傷を最小限に抑える鍵穴手術から頭蓋底部のアプローチ方法など様々な手法での手術を行っています。
また、手術での摘出リスクが高い部位に関しては定位放射線手術を併用することにより、より安全な治療戦略を提案します。
I perform neurosurgical procedures, which includes using key hole approach or extended skull base approach, based on the brain tumor size and location. For tumors located in high risk regions, Gamma Knife therapy may be done after the surgery to enhance safety and effectiveness.

聴神経鞘腫
Acoustic Neuroma

小さな腫瘍の場合は、ガンマナイフ治療のみでも治療が可能です。中くらいのサイズを超える場合は、安全を優先に考えた手術を行います。通常は耳の後ろから、4~6cmの皮膚切開で500円玉程度の開頭部より摘出を行います。手術は腫瘍のサイズによりますが、3~5時間程度必要です。必要に応じて残存部にガンマナイフ治療を追加します。
For small tumors, Gamma Knife surgery is solely used for treatment. Moderate-sized tumors can be excised completely with maximum safety with neuromonitoring and post-operative Gamma Knife if necessary. In most cases, the surgery is performed through retroauricular region with small skin incision of ~4-6 cm and less than 3 cm craniotomy in diameter.

髄膜腫
Meningioma

頭蓋内のあらゆる部位に発生する可能性のある腫瘍です。腫瘍の部位により、治療選択は異なります。手術で全摘出が理想的ですが、手術のリスクが高い部分はガンマナイフ治療を併用します。頭蓋底部にできた腫瘍の場合は、頭蓋底からの特殊なアプローチが必要なこともあります。
This type of tumor may develop in any region in the skull where the dura mater overlies the brain. The strategy differs according to the location and size. Due to the benign nature, total removal with the originating dura mater is ideal. However, some tumors arising from the skull base require skull base approach and post-operative Gamma Knife.

下垂体腺腫・頭蓋咽頭腫
Pituitary Adenoma/Craniopharyngioma

視神経付近にできることが多く、目の症状を生じることが多い腫瘍です。 手術で全摘出できれば治癒しますが、腫瘍の両側には内頸動脈、海綿静脈洞、脳神経が走行しており、綿密な治療計画と繊細な治療が必要です。耳鼻咽喉科・鼻内視鏡のエキスパートが鼻から頭蓋底部までのアプローチを行った後に、頭蓋骨底部に1円玉程度の小さい開頭を行い、腫瘍の摘出を行います。治療は3時間程度終了します。切開は鼻の奥で行いますので、手術創が外から見えることはありません。
These tumors commonly show symptoms of visual disturbance as they arise around the optic nerves. Total removal leads to complete cure, however, it requires multiple techniques such as microsurgical technique and endoscopic surgery. Small craniotomy less than 2 cm in diameter is made at the middle of the skull base. All procedures are completed within 2-3 hours. The skin incision made inside the nostril cannot be seen after the operation.

類上皮腫
Epidermoid Cysts

まれな腫瘍ですが、三叉神経痛を来すことがあり、ある程度の大きさの腫瘍の場合は摘出が必要です。鍵穴手術から特殊な開頭を必要とする場合など、患者さんに応じた治療方法を検討します。
This is a rare intracranial tumor. This tumor frequently causes trigeminal neuralgia as it tends to arise around the trigeminal nerve. The extent of removal is determined by the symptoms. Due to its benign nature, some patients only require partial removal around the trigeminal nerve for trigeminal neuralgia.

転移性脳腫瘍
Metastatic Brain Tumors

悪性腫瘍(肺癌、乳癌など)が脳に転移をきたすことがあります。 ガンマナイフ治療が極めて有効ですが、大きな場合は手術で摘出することもあります。
Malignant tumors (lung cancer, breast cancer) may metastasize to the brain. Gamma Knife is the most effective option to control this kind of tumor. For large tumors, initial surgical removal, followed by Gamma Knife is a reasonable treatment choice.

International Gamma Knife Program – Koto Memorial Hospital

1. From World-Leading MVD to Gamma Knife

Delivering Global Neurosurgical Expertise to Patients Everywhere

Dr. Takuro Inoue, trusted by patients from over 30 countries for microvascular decompression (MVD), now leads a certified Gamma Knife team delivering the same world-class precision and care.

2. Why Choose Us

  • Global Trust Built Through MVD – Led by Dr. Takuro Inoue, who has welcomed patients from over 30 countries for hemifacial spasm and trigeminal neuralgia, our team understands the unique needs of international patients.
  • Expanding Excellence with Gamma Knife – A non-invasive treatment for brain tumors, AVM, and trigeminal neuralgia, provided by an experienced, certified team.
  • Elite Surgical Collaboration – Over 20 years of collaboration with the late Dr. Takanori Fukushima, a legendary neurosurgeon, combining advanced skull base surgery with Gamma Knife radiosurgery.
  • Proven Results & Competitive Pricing – More than 5,000 Gamma Knife procedures since 2004, with treatment costs starting at ¥800,000 (USD 5,000).

3. Meet Dr. Takuro Inoue & the Gamma Knife Team

Dr. Takuro Inoue is a board-certified neurosurgeon with over 30 years of experience. Known worldwide for his expertise in microvascular decompression (MVD), he has welcomed patients from more than 30 countries across North America, Europe, Asia, and the Middle East.

For more than two decades, Dr. Inoue and the Gamma Knife team at Koto Memorial Hospital collaborated with the late Dr. Takanori Fukushima, a legendary neurosurgeon renowned worldwide for his mastery of skull base surgery. Together, they developed a unique treatment approach combining advanced skull base surgery with Gamma Knife radiosurgery.

Our Certified Team (Japan Gamma Knife Society):
  • Dr. Takuro Inoue, M.D., Ph.D.
  • Dr. Hisao Hirai, M.D., Ph.D.
  • Dr. Ayako Shima, M.D., Ph.D.

4. About Gamma Knife at Koto Memorial Hospital

  • Team-based, state-of-the-art radiosurgery for brain tumors, arteriovenous malformations (AVM), and trigeminal neuralgia.
  • Treated brain tumor types include vestibular schwannoma, meningioma, pituitary adenoma, other benign brain tumors, and metastatic brain tumors.
  • Over 5,000 Gamma Knife treatments since 2004.
  • 20+ years of follow-up data.
  • Fully Outpatient Treatment – At Koto Memorial Hospital, Gamma Knife radiosurgery is performed entirely on an outpatient basis. Patients arrive in the morning, receive treatment, and return to their accommodation the same day. No overnight hospital admission is required, and most international patients combine their visit with a short stay in Kyoto.
  • Free online consultations with preliminary treatment planning.
  • Follow-up for every patient.

5. Affordable Excellence – World-Class Gamma Knife with Unique International Expertise

Patients at Koto Memorial Hospital receive Gamma Knife radiosurgery at a significantly lower cost than in many countries — only ¥800,000 (~USD 5,000) for international patients. This price includes the extra coordination and support required for overseas visitors, while remaining far below international rates.

Gamma Knife technology is produced by a single global manufacturer, Elekta, ensuring a high level of precision when the system is properly maintained. At Koto Memorial Hospital, we exceed global maintenance standards by performing accuracy checks and comprehensive servicing more than four times per year under a direct contract with Elekta.

What sets Koto apart is not only our technical excellence, but also our decades of experience in international patient care. Dr. Inoue’s career in microvascular decompression has brought patients from over 30 countries to Japan, giving our team unmatched experience in supporting people traveling for complex neurosurgical procedures.

We also maintain a close partnership with the National Brain Center Hospital (RSPON) in Jakarta, offer follow-up, and integrate skull base surgical expertise with radiosurgery — benefits rarely available at other centers.

6. How It Works

  1. Free Online Consultation – Review your medical history and MRI, discuss treatment options, and receive a preliminary plan.
  2. Travel & Treatment – Stay in Kyoto and visit Koto Memorial Hospital for your Gamma Knife procedure, performed entirely on an outpatient basis. Most patients are discharged within hours of arrival and can return to their hotel the same day.
  3. Short Stay in Japan – Most patients complete their treatment with just a 2–3 day stay in Japan.
  4. Follow-Up – Annual imaging review, coordinated with your home country when possible.
6.1 International Partnerships – Indonesia & Japan

Koto Memorial Hospital has a long-standing collaboration with the National Brain Center Hospital (RSPON) in Jakarta, Indonesia.

In partnership with Dr. Ryan Keswani, M.D., Dr. Sayyid Abdil Hakam Perkasa, M.D., and Dr. Abrar Arham, M.D., we have shared expertise in Gamma Knife radiosurgery and neurosurgical care for many years.

Through this cooperation, patients in Indonesia can receive pre-treatment consultations and evaluations at RSPON, ensuring a smooth referral process to our facility in Japan for advanced Gamma Knife treatment when needed. After treatment at Koto Memorial Hospital, patients can benefit from follow-up care at RSPON.

7. International Patient Services

  • Pickup service from the nearest Shinkansen station, along with assistance for hotel and hospital coordination.
  • English communication available.
  • Medical visa support and documentation.

8. Success Stories

“I came to Japan for MVD with Dr. Inoue years ago. When I later needed Gamma Knife treatment, I returned without hesitation. The care from Dr. Inoue and his team was once again world-class.”

– Emily W., USA

9. Contact & Call to Action

We accept applications exclusively through the email link below.

case01.Clinoidal Meningioma

53 F
Incidental case
Neurologically intact
Total removal without neurological deficit


case02.Sphenoidal Meningioma

66 F
Visual disturbance
Pre Op Embolization
Subtotal removal
Post Op
Improved visual function
No oculomotor palsy
Remnant followed by GK


case03.Tentorial Meningioma

She was diagnosed with this meningioma 10 years ago, which gradually grew to large size. Increased intracranial pressure due to hydrocephalus impaired her vision. After internal decompression, she was treated with Gamma Knife thereafter.


case04.Falx Meningioma

67 M
Motor weakness of the right side, gait disturbance and poor activity.
After removal, he regained his activity and disappearance of the weakness.


case05.Cavernous sinus Meningioma

59 F
Incidental case, Neurologically intact
Temporopolar approach
No deficit
Cavernous remnant followed by GK


case06.Trochlear Nerve Schwannoma

A 52-year-old man suffered from diplopia, gait disturbance, and sensory disturbance. MR imaging demonstrated a large cystic mass at ambient cistern on the right side.
Subtotal excision followed by Gamma Knife surgery was undertaken. His neurological symptoms disappeared with radiological reduction in size at 15 months follow-up.


case07.Tentorial Meningioma

60 F
Progressive motor weakness of right side, gait disturbance, and hearing loss, eventually leading to complete bed rest.
After total removal, she was able to walk and lives a normal life except the deafness.


case08.Vestibular Shwannoma

70 F
She was twice operated at other hospital.
However, the tumor regrew rapidly. Total removal of the tumor was performed with extended skull base technique, followed by facial nerve reconstruction using sural nerve graft.


case09.Hypoglossal Schwannoma

A 61-year-old male with a large hypoglossal schwannoma with moderate tongue atrophy.
The tumor extended from the enlarged hypoglossal canal to the brainstem intradurally and the high cervical region extradurally. Through the extreme lateral infrajugular transcondylar (ELITE) skull base approach, the tumor was completely removed in a single-stage operation.


井上卓郎 外来/診察予約Contact Us

tel.0749-45-3177

subaru@gammaknife-c.jp

京都での診察をご希望の方は
蘇生会総合病院 tel.075-621-3101

関東での手術を希望の方は名戸ヶ谷病院へ
 脳神経外科 井上靖章医師(nadogaya.neurosurgery@gmail.com)

外来診察Outpatient Clinics

※要予約※Reservation required.

湖東記念病院
Koto Memorial HospitalWebSite
平日
Weekdays
午後
p.m.
学研都市病院
Gakkentoshi HospitalWebSite
第3土曜日
Third Saturday
午前
a.m.
蘇生会総合病院
Soseikai HospitalWebSite
第3土曜日
Third Saturday
午後
p.m.

手術を行う病院Surgical Services

湖東記念病院
Koto Memorial HospitalWebSite
日本、滋賀
Shiga, Japan
蘇生会総合病院
Soseikai General HospitalWebSite
日本、京都
Kyoto, Japan
名戸ヶ谷病院
Nadogaya hospitalWebSite
日本、千葉
Chiba, Japan
志太記念脳神経外科
Shida Memorial Neurosurgery ClinicWebSite
日本、静岡
Shizuoka, Japan
Andalusia HospitalWebSite Alexandria, Egypt
National Brain Center HospitalWebSite Jakarta, Indonesia
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