Centers & Services

Department of Dermatology

What is Dermatology?

The Department of Dermatology examines the entire body for dermatological diseases. We provide diagnoses and treatments for common dermatological diseases, bullous dermatoses, connective tissue diseases, skin cancers, and congenital skin diseases in cooperation with other departments.

Our Doctors

Director, Department of Dermatology

Keiji Iwatsuki, Professor
[Common dermatological diseases, autoimmune diseases, lymphoma, orphan(/rare) refractory diseases]


Osamu Yamasaki Lecturer Cutaneous infections, cutaneous malignancies
Toshihisa Hamada Lecturer Cutaneous lymphomas
Shin Morizane Lecturer (Hospital) Cutaneous inflammatory diseases
Tatsuya Kaji Assistant Professor Cutaneous malignancies
Yoji Hirai Assistant Professor Virus-associated disorders
Hiroko Fukamatsu Assistant Professor Collagen diseases
Tomoko Miyake Assistant Professor Oncogenic viruses

*Specialty indicated in [ ]

Weekly schedule of outpatient physicians

  Monday Tuseday Wednesday Thursday Friday
Outpatient physicians Professor Lecturer Professor Assistant professor Lecturer
Clinical sections available by day of the week A.M General outpatient Dermatological surgery General outpatient Dermatological surgery General outpatient Dermatological surgery General outpatient Collagen disease Rare refractory disease Dermatological surgery General outpatient
P.M Dermatological surgery Dermatological surgery      

Treatment system

In the outpatient clinic, attending physicians in the Department of Dermatology mainly provide treatment Monday through Friday. Although the preferential medical care is fundamentally given to patients who have an appointment, any person can visit the office without a referral. In the inpatient ward, attending physicians and the ward chief physician take the initiative in discussions by all staff members about the disease condition and problems of each patient. They decide the treatment policy.

Treatment policy

After narrowing down the diagnosis based on visual and tactile inspections, we conduct blood tests, dermoscopy tests, skin echo tests, skin biopsies, allergy tests, gene diagnoses, and imaging tests, any of which might be necessary to establish a diagnosis and ascertain the disease conditions. The final diagnosis and treatment policy are discussed and reviewed in the conference. The external and internal drug applications, and if necessary, systemic treatments, phototherapies, and operative therapies are conducted. Patients who needhospitalization treatment are positively accepted. The dermatological medical system is consolidated forcollaboration with local hospitals and clinics.

Areas of specialization

The department provides treatment for common skin diseases such as atopic dermatitis, psoriasis, cutaneous tumors (including malignancy), cutaneous infection, hair loss, and leukoderma. Additionally, we work actively not only on cutaneous malignant lymphoma, herpesvirus infections, and EB virus-related cutaneous disease but also rare dermatological diseases including pemphigus and congenital skin diseases. Furthermore, we conduct sentinel node biopsy and photodynamic therapy (PDT) as well.

Scope of Target Diseases

In addition to the above, we target all diseases with symptoms on skin and mucosa. We respond extensively not only to dermatological diseases including eczema / dermatitis, keratosis, bulluous disease, and cutaneous tumors but systemic diseases including skin infections, allergy diseases, autoimmune diseases, and collagen diseases. Treatments of severe burns are also provided in cooperation with the emergency care center.

Description of medical care

The department examines the entire body for skin symptoms. Of course, collaboration with other departments is actively conducted. The outpatient clinic has outpatient services for general skin diseases and for dermatological surgery and cutaneous tumors. The former gives diagnoses and treatments for all patients with skin symptoms, including bullous dermatoses, collagen diseases, and systemic illness as well as common skin diseases. Because various systemic diseases such as collagen diseases and metabolic diseases manifest their characteristic skin symptoms, we give systemic diagnoses and treatments with them as first clues. Some severe infections of cutaneous and subcutaneous tissues develop distinctive systemic symptoms, which we target and for which we provide active treatments. The outpatient clinic conducts treatments with surgery for cosmetic problems such as pigmented spots and bruises. It also specializes in armpit odor. The outpatient skin surgery team positively conducts operative treatments for various benign and malignant tumors appearing on skin and mucosa, treatments for burns, and postoperative follow-ups. It also actively works together with the Department of Plastic Surgery if necessary. When you have no idea about which outpatient service you should visit, please feel free to talk to any physician in the outpatient clinic.

For outpatient visits

For revisiting outpatients

  • Appointment: Revisiting outpatients must obtain an appointment for a physician in the department, making exceptions of urgent cases and people for whom conditions suddenly worsen.
  • For patients undergoing patch tests: Because the patch is to be removed before the medical examination, pleaselet us know the presence of the patch to the receptionist.
  • Prescription without consultation: It is not allowed in principle. Please make sure to consult the physician.
  • When you visit offices of other departments on the same day, please let us know that fact to the receptionist.

Highly advanced and special medical treatments

Technology covered by health insurance programs

  • Genetic diagnosis of sentinel node in malignant melanoma
  • Phototherapy (PUVA, narrow band UVB and excimer light): only diseases suitable for phototherapy

Technology designated as highly advanced medical treatment

  • Phototherapy (PDT): treatment for superficial cancers

Technologies conducted as clinical trial studies

  • Retinoid receptor selective agonist for cutaneous T-cell lymphoma
  • High-dose immunoglobulin for refractory bullous pemphigoid

Technology used in clinical studies

  • Electron microscopic diagnosis
  • Genetic diagnosis (Genetic tests for EB virus-related T/NK cell growth, cutaneous lymphomas, other cutaneous cancers, and sarcomas)

Major methods for testing and explanation

  • Cutaneous biopsy: to establish a tissue diagnosis by removing the skin from a region of rash
  • Microscopic tests: to examine fungus and bacteria using light microscopy
  • Electron microscope examination: to make a diagnosis from skin biopsy and hair microstructure
  • Allergy tests: to examine the causes of shock, allergic urticarial, medication allergy, metal allergy, and irritated skin
  • Light irradiation tests: to search for the cause by irradiation of particular ultraviolet and lamp light when photosensitivity is suspected
  • Imaging tests: to evaluate tumor behavior and expansion in tumor involvement using skin echo examination, CT, MRI, and PET
  • Genetic tests: used for tumor cells, identification of pathogens, and congenital diseases
  • Dermoscopy: examination of rash behavior preventing irregular reflection on skin surface

Main methods for testing and medical equipment

Approach to refractory cutaneous diseases

For refractory cutaneous diseases such as congenital skin diseases, autoimmune bullous dermatoses, and pustular psoriasis, this Department of Dermatology conducts treatments as a hub to construct a medical support network covering the Sanyo to Shikoku districts.
The project to overcome intractable disease by the Ministry of Health, Labour and Welfare: The research team for rare refractory cutaneous diseases (pemphigus, epidermolysis bullosa, and congenital ichthyosiform erythrodema).

Cutaneous allergy tests

To search for the cause of contact dermatitis, patch tests and skin testing (intracutaneous test) are conducted as type I allergy.

Immunoblot and genetic diagnosis

To detect autoantibodies of autoimmune bullous dermatoses (pemphigus and pemphigoid), fluorescence antibody method to use blood serum and immunoblot are conducted. In addition, PCR sequence analyses using peripheral blood DNA are conducted for genetic diagnoses of dyskeratosis congenita and bullous dermatoses.


Ultraviolet treatment is used for intractable skin diseases. It can be applied to widespread lesions simultaneously. Wavelengths of UVA and UVB are properly used respectively depending on symptoms and diseases. Additionally, for alopecia areata, treatment with polarized infrared-ray irradiation equipment is attempted.

Burn injury treatment unit

Since a high care unit (HCU) was established at this hospital, it has been actively receiving patients with severe burn injuries. The Department of Dermatology, in cooperation with the HCU, is in charge of surgical treatment of them. Moreover, it repairs scars that remain after a burn injury is cured.

Dermatological surgery and tumor outpatient services

Physicians who have mastered dermatological surgical procedures take central roles in doing plastic and surgical treatment on moles, bruises, benign tumors, keloid scars, and resection, reconstruction, and chemotherapy on malignant tumors. Furthermore, the treatment design, surgical treatment and chemotherapy based on histological assessment of malignant melanoma and lymph node metastasis assessment by sentinel node biopsy are conducted for improvement of prognosis. Additionally, we are actively addressing surgical treatments for necrotizing fasciitis as a severe infection.


To remove subcutaneous tumors safely and reliably, preoperative ultrasonography is performed. The examination is extremely safe and makes it possible not only to ascertain the position of the tumor relative to important nerves, blood vessels, muscles, and bones accurately, but also to know whether it is benign or malignant, and to what some degree. It is used for narrowing down reasons why lymph nodes have become swollen. It is also useful to evaluate the situation of blood flow to lower limbs, so it is used for the diagnosis of varicose veins and deep-vein thrombosis.

Diagnosis of bacterial skin diseases

Culture medium detection using selective medium culture for each bacterium is conducted to detect the behaviors and drug tolerance of cultured fungi and then to treat them.

Diagnosis and treatment of viral skin infections

Using the latest diagnostic techniques (PCR method and in situ hybridization), we conduct diagnoses and treatments of virus-related lymphomas and blood vessel diseases as well as acute viral infections.

Extermination with electron microscopes

Electronic microscopes are used for examinations of dermatological diseases for which it is difficult to establish a diagnosis, including congenital dysbolism and bullous dermatoses.