Breast Center

What we do

Booking & Call Centers

For consultations, screening, or second opinions, please contact our dedicated appointment centers:

・Kameda Clinic / Kameda General Hospital (Kamogawa, Chiba):
　Call Center:　04-7099-1111　※(Mon–Sat 8:00 AM – 5:00 PM; Closed 3rd Sat, Sun & Holidays)
・Kameda Kyobashi Clinic (Chuo-ku, Tokyo):
　Directly connected to Tokyo Metro Ginza Line Kyobashi Station
　Call Center:　03-3527-9201　※ (8:30 AM – 5:00 PM)
・Kameda General Hospital Affiliated Makuhari Clinic (Mihama-ku, Chiba):
　Call Center:　043-296-8175　※(Weekdays 8:30 AM – 5:00 PM; Sat 8:30 AM – 12:00 PM)

The Kameda Breast Center is a world-renowned "Comprehensive Breast Center" offering a complete continuum of care—from screening and precision imaging diagnostics to advanced surgical resection, oncoplastic reconstruction, systemic drug therapies, and long-term survivorship support.

Our center is led by Dr. Eisuke Fukuma (Chief Director), an international pioneer who initiated the world’s first endoscopic breast surgery 29 years ago. We are supported by world-leading breast pathologists and subspecialist breast radiologists working in daily seamless collaboration with our breast surgical team.

Pioneer Technologies & Advanced Innovations

Endoscopic & Oncoplastic Surgery: Spearheaded by Dr. Fukuma, our minimal-incision endoscopic techniques achieve identical oncological curability to traditional open surgeries while maintaining superior cosmetic outcomes and ultra-low local recurrence rates.
Robot-Assisted Nipple-Sparing Mastectomy (R-NSM): In April 2022, our team performed Japan’s first robot-assisted breast surgery. Utilizing a single 3.5–4.0 cm incision placed discreetly below the axilla (hidden by undergarments), complete breast tissue removal and immediate implant reconstruction are achieved through a single incision.
Non-Surgical Cryoablation (Non-Excisional Freezing Therapy): Over 18 years, we have treated over 600 early-stage breast cancer cases using targeted cryoablation. Performed as a same-day outpatient procedure under local anesthesia, it delivers local control equivalent to breast-conserving surgery with zero surgical scarring. (If sentinel lymph node biopsy is required, a 3-day/2-night stay is arranged).
Lymphedema Surgery & Upper Limb Care: Specialist plastic surgeons within our department provide comprehensive diagnostic mapping, micro-lymphatic super-microsurgery (LVA), and conservative therapy for post-mastectomy upper limb lymphedema.

Specialized Outpatient Clinics & Clinical Programs

Oncoplastic Breast Surgery & Reconstruction (Oncoplastic Surgery): Collaborative reconstructive surgery performed by experienced in-house plastic surgeons and oncoplastic surgeons, including autologous fat grafting and stem cell-enhanced techniques.
Regenerative Medicine Breast Reconstruction: Cutting-edge reconstruction options utilizing adipose-derived stem cell-enriched fat grafting (Cellution System) and cultured stem cell therapies following breast-conserving or total mastectomy procedures.
Oncofertility / Fertility Preservation: Pre-treatment reproductive counseling and fertility preservation pathways for young cancer or autoimmune patients before initiating chemotherapy/radiotherapy.
Hereditary Breast and Ovarian Cancer (HBOC) Clinic: Genetic counseling and testing for patients with inherited genetic predispositions (approx. 5–10% of breast cancer diagnoses).
Post-Augmentation Mammography & Breast Screening: Specialized breast cancer screening and evaluations tailored for women with previous cosmetic breast augmentations or implants.
Second Opinion Consultations: Outpatient second opinions regarding systemic therapy, chemotherapy, and surgical strategies (conducted every Thursday at the Breast Tumor Outpatient Clinic).

(Updated 2025.1.8: Responsible Chair, Breast Department Chief Minister, Eisuke Fukuma)

Learn more about treatments at the Breast Center

▶Breast Cancer Pathology Q&A answered by Breast Pathology Specialists (PDF Format)

Details of Breast Cancer Treatment at Our Hospital

We are actively engaged in oncoplastic surgery and breast reconstruction, aiming to achieve both radical cure of cancer and symmetry between the left and right breasts.

Cancer and Reproductive Medicine (Fertility Preservation)

There are important factors that young cancer patients and patients with autoimmune diseases must consider prior to initiating treatment.

Hereditary Tumor Clinic (Hereditary Breast and Ovarian Cancer - HBOC)

It is said that approximately 5% to 10% of breast cancer patients have a genetic predisposition to developing breast cancer.

Upper Limb Lymphedema Treatment After Breast Cancer Surgery

With early diagnosis and early treatment, patients experiencing lymphedema (swelling of the hand and arm) after breast cancer surgery can continue to live their daily lives as before.

Post-Augmentation Breast Screening Clinic

This outpatient clinic is designed for individuals who have concerns following cosmetic breast augmentation or those who wish to undergo breast cancer screening.

Breast Reconstruction Using Regenerative Medicine

As a option for reconstruction following breast-conserving surgery or total mastectomy, we have initiated new regenerative medicine therapies based on adipose-derived stem cell-enriched fat grafting (Celution System) and cultured adipose-derived stem cell-enriched fat grafting.

About Robot-Assisted Nipple-Sparing Mastectomy

If you would like to know more details, please ask a breast surgery physician.

Second Opinion

We accept second opinion consultations regarding pharmacotherapy and chemotherapy following a breast cancer diagnosis at the Breast Tumor Outpatient Clinic (every Thursday).

We introduce the treatment of lymphedema at our hospital's Lymphedema Outpatient Clinic through this video.

Conditions we handle

We provide comprehensive specialized care for a wide spectrum of malignant, benign, and complex breast conditions:

Malignant Breast Conditions: Invasive Ductal Carcinoma (IDC), Ductal Carcinoma In Situ (DCIS), Invasive Lobular Carcinoma (ILC), Lobular Carcinoma In Situ (LCIS), Inflammatory Breast Cancer, Paget’s Disease of the Breast, Male Breast Cancer, Angiosarcoma, and Recurrent Breast Cancer.

Benign Conditions & Diagnostic Follow-up: Fibroadenomas, benign breast masses/lumps, and secondary specialized evaluations for abnormal findings from breast cancer screenings.

Number of cases

Total outpatient count: 21,109 Total
inpatient count: 6,789
(FY2024 results)

Number of cases by disease (FY2023 results)

	number of cases
Other types of sepsis	2
Malignant neoplasms < tumors in the breast>	688
Other secondary malignant neoplasms of unknown site and site < tumors>	2
Intraepithelial carcinoma of the breast	120
Benign neoplasms < tumors in the breast>	4
Other tumors with unknown or unknown properties or unknown locations< tumors>	2
agranulocytosis	2
Other non-infectious disorders of lymphatic vessels and lymph nodes	60
Post-treatment disorders of the cardiovascular system, not classified elsewhere	47
Inflammatory Disorders of the Breast	5
A lump of unknown breast details <lump>	18
Other complications of in vivo prosthesis, implants, and grafts	5
Other	6
Total	961

Operation results

Number of

surgeries: Hospital: 642
Clinics: 27
Total: 669
(FY2024 results)

Breakdown of breast cancer surgery procedures (FY2023 results)

Numbers in parentheses indicate mirror view

Surgical method	number of cases
Breast-conserving surgery	193(68)
total mastectomy	254(129)
Nipple-Areola Preserving Subcutaneous Mastectomy	88(87)
subcutaneous mastectomy	44(41)
Breast Reconstruction Surgery: Phase I Reconstruction	22
Phase II Reconstruction	104
fat grafting	7
breast augmentation surgery	0
cryotherapy	39
Other	27
breast cancer surgery	646
Benign tumor surgery	33
lymphangioanastomosis	60
Other	30
plan	769

*The number of cases by technique also includes those performed together, so there may be overlap.

List of Doctors

Director of Breast Center

Eisuke FUKUMA

Subspeciality
Breast Cancer Treatment， Mammography

Department name	Breast Center
Medical School	Iwate Medical University
Special Qualifications	Board Certified Physician， Certified Specialist and Advanced Certified Specialist of Japan Surgical Society Board Certified Physician， Certified Specialist and Advanced Certified Specialist of The Japanese Breast Cancer Society The Central Committee on Quality Control of Mammographic Screening-Licence of Interpretation of Radiogram: A Approved doctor to interpret mammography Board Director of Association of Japan Oncoplastic Breast Surgery
Education & Career	1979.Mar. Graduated from Iwate Medical University 1979.Apr. Residency in General Surgery， St.Luke's International Hospital 1981.Apr. General Surgery， St.Luke's International Hospital 1985.Nov. General Surgery， Teikyo University School of Medicine University Hospital， Mizonokuchi 1988.Apr. General Surgery， The University of Melbourne 1988.Oct. General Surgery， Yokohama General Hospital 2000.Apr. Chief of Breast Surgery Department， Kameda Medical Center 2006.Apr. Chief of Breast Center(Changed Name)， Kameda Medical Center 2011.Apr. Director of Breast Center， Kameda Medical Center

Chief of Mammary gland pathology

Masafumi KUROZUMI

Subspeciality
Mammary gland pathology

Department name	Breast Center
Medical School	School of Medicine， Niigata University.
Special Qualifications	Board Certified Specialist of The Japanese Society of Pathology Board Certified Specialist of Japanese Society of Clinical Cytology Board Certified Specialist of Japanese Society of Laboratory Medicine
Education & Career	1978 Mar. Graduated from School of Medicine， Niigata University. 1978 Apr. second surgery， Gunma University School of Medicine 1983 May. Research Associate of Third Anatomy， Osaka University School of Medicine 1986 Jun. second surgery， Gunma University School of Medicine 1991 Jun. Assistant Chief of Department of Clinical Pathology，Saitama Cancer Center 2002 Apr. Deputy Chief of Pathology department，Saitama Cancer Center 2005 Apr. Chief of Pathology department，Saitama Cancer Center 2018 Apr. Chief of Mammary gland pathology， Kameda Medical Center

Chief of Breast Center

Yoshitomo KOSHIDA

Subspeciality
Surgery for Breast Disease， Therapy， Breast Canser Screening， Diagnostic Imaging

Department name	Breast Center
Medical School	Kitazato University School of Medicine
Special Qualifications	Board Certified Specialist of Japan Surgical Society Board Certified Tentative Instructor of Japan Board of Cancer Therapy Board Certified Specialist of The Japanese Breast Cancer Society Board Cerfified Industrial Physician of Japan Medical Association
Education & Career	1993 Mar. Graduated from Kitazato University School of Medicine 1993 Apr. Residency in Kitazato University School of Medicine 1994 Apr. Residency in Sapporo Higashi Tokushukai Hospital 1995 Apr. Specialization Residency in Kitazato University School of Medicine 1996 Apr. Specialization Residency in The 2nd Tokyo Naional Hospital 1997 Apr. Reseacher of General Surgery， Kitazato University School of Medicine 2004 Apr. General Surgery， Saiseikai Central Hospital 2012 Assistant Chief of General Surgery， Saiseikai Central Hospital 2014 Jul. Vice Chief of Breast Center， Kameda Medical Center 2015 Jun. Chief of Breast Center， Kameda Medical Center

Chief of Breast Center

Yuko ASANO

Subspeciality
Orthopedic Surgery

Department name	Breast Center
Medical School	University Occupational and Environmental Health， Japan School of Medicine
Special Qualifications	Board Certified Specialist of Japan Society of Plastic and Reconstructive Surgery Board Certified Specialist of Japan Oncoplastic Breast Surgery Society
Education & Career	1990 Mar. Graduate from University of Occupational and Environmental Health， Japan 1990 Apr. Residency in Japanese Red Cross Medical Center 1992 Apr. Orthopedic Surgery Class， Tokyo University 1995 Apr. Department of Orthopedic Surgery， Musashino Red Cross Hospital 1997 Apr. Department of Orthopedic Surgery， Tokyo University Hospital 1998 Apr. Department of Orthopedic Surgery， National Center for Global Health and Medicine 2000 Apr. Department of Orthopedic Surgery， The Fraternity Memorial Hospital 2008 Apr. Cellport Clinic Yokohama 2011 Apr. Department of Dentistry and Oral surgery， Teikyo University， School of Medicine 2013 Jul. Vice Chief of Breast Surgery(Breast Reconstruction)， Kameda Kyobashi Clinic 2016.Jun.Chief of Breast Surgery(Breast Reconstruction)， Kameda Kyobashi Clinic

Chief of Breast Center

Naomi SAKAMOTO

Subspeciality
Breast Surgery

Department name	Breast Center
Medical School	Kobe University， School of Medicine
Special Qualifications	Board Certified Pyshician of Japan Surgical Society Board Certified Pyshician of The Central Committee on Quality Control of Mammographic Screening
Education & Career	1995: Graduated from Kobe University， School of Medicine 2003: Breast Center， Kameda Medical Center 2005 May: Assistant Chief of Breast Center， Kameda Medical Center 2015 Jun. Chief of Breast Center， Kameda Medical Center

Chief of Radiology And Chief of Imaging Diagnosis Center， Kameda Medical Center Chief of Clinic Department (Radiology staff)， Kameda Kyobashi Clinic

Youichi MACHIDA

Subspeciality
breast density ， Image-guided biopsy of the mammary gland

Department name	Breast Center
Medical School	Tokyo Medical and Dental University Faculty of Medicine
Special Qualifications	Board Certified Specialist and Advanced Certified Speialist of Japan Radiological Society Board Certified Physician of The Japanese Breast Cancer Society Board Certified Specialist and Advanced Certified Speialist of The Japanese Breast Cancer Society
Education & Career	2005 Mar. Graduated from Tokyo Medical and Dental University Faculty of Medicine 2005 Apr. Resident in Toride Kyodo General Hospital 2007 Apr. Tokyo Medical And Dental University Medical Hospital 2008 Apr. Tokyo Medical and Dental University Graduate School of Medical and Dental Sciences 2013 Apr. Assistant Professor of Tokyo Medical And Dental University Medical Hospital 2014 Apr. Kameda Kyobashi Clinic 2015 Oct. Vice Chief of Clinic Department (Radiology staff)， Kameda Kyobashi Clinic Breast Center(Adviser / radiological diagnosis staff)， Kameda Medical Center 2017 Apr. Chief of Clinic Department (Radiology staff)， Kameda Kyobashi Clinic Breast Center(Adviser / radiological diagnosis staff)， Kameda Medical Center 2018 Jun. Chief of Radiology， Kameda Medical Center Chief of Clinic Department (Radiology staff)， Kameda Kyobashi Clinic

Chief of Department

Masaaki SAKAMOTO

Subspeciality
Breast surgery， Breast oncology

Department name	Breast Center
Medical School	University of SHOWA， School of Medicine
Special Qualifications	Board Certified Specialist of Japan Surgical society， Board Certified Specialist and Advanced Certified Specialist of The Japan Breast Cancer Society， Board Certified Physician of Japan Society of Clinical Oncology
Education & Career	2000 Mar. Graduated from Showa University， School of Medicine， 2000 Apr. Residency Training at Showa University Hospital， Department of 2nd. Surgery， 2001 Oct. Tokyo Metropolitan Ebara Hospital， Department of Surgery (Gastroenterologic Surgery)， 2002 Oct. Shiroyama Hospital 2004 Mar. Showa University Hospital， Department of 2nd. Surgery 2006 Apr. Kameda Medical Center (Department of Breast Center) 2008 Apr. Showa University Hospital， Department of Breast and Endocrine surgery， 2008 Oct. Assistant Chief of Breast Center， Kameda Medical Center 2011 Apr. Vice Chief of Breast Center， Kamedical Medical Center 2015 Jun. Chief of Breast Center， Kameda Medical Center

Assistant Chief of Breast Center Lymphedema

Akitatsu HAYASHI

Subspeciality
Lymphedema after cancer surgery， microsurgery， super microsurgery

Department name	Breast Center
Medical School	University of Juntendo
Special Qualifications	Board Certified Specialist of Japan Society of Plastic and Reconstructive Surgery
Education & Career	2010 Mar. Graduate from University of Juntendo 2010 Apr. Residency in Center Hospital of the National Center for Global Health and Medicine 2012 Apr. Plastic Surgery， The University of Tokyo Hospital 2015 Oct. Plastic Surgery， Asahi Hospital 2017 Oct. Lymfecentrum，AZ Sint-Maarten Hospital Department of lymphatic surgery medical instructor 2018 Feb. Breast Center， Kameda Medical Center