Enhanced sterilization and healing of cutaneous pseudomonas infection using 5-aminolevulinic acid as a photosensitizer with 410-nm LED light.

Background: Pseudomonas aeruginosa (PA) frequently develops antibiotic-resistant characteristics, which is clinically problematic. The main reason behind the rise of antibiotic-resistant PA is the extensive use of antibiotics. Therefore, a novel technique is needed to treat PA infections.

Photodynamic therapy using systemic administration of 5-aminolevulinic acid and a 410-nm wavelength light-emitting diode for methicillin-resistant Staphylococcus aureus-infected ulcers in mice.

Bacterial resistance to antibiotics has become a worldwide problem. One potential alternative for bacterial control is photodynamic therapy. 5-aminolevulinic acid is a natural precursor of the photosensitizer protoporphyrin IX.

Dye laser photodynamic therapy for Bowen's disease in a patient with epidermodysplasia verruciformis.

Epidermodysplasia verruciformis (EV) is a rare heritable skin disease that results in unusual susceptibility to infection with specific types of human papillomavirus (HPV). Here we report a 53-year-old man with EV who developed Bowen's disease on his lower eyelid and the chest. Mutation analysis of EVER1 gene revealed homozygous splice acceptor site mutation (IVS8-2, A > T).

Two cases of steatocystoma simplex in infants.

Steatocystoma simplex is a rare benign cutaneous cyst that is thought to be a circumscribed malformation arising from the pilosebaceous duct junction. Reports describing steatocystoma simplex are scarce and many issues remain to be clarified, including frequency and age distribution. Steatocystoma simplex is generally considered to be a solitary, non-inherited tumor arising in adults; there have been no previous reports of steatocystoma simplex in infants.

Lipoma with bone and cartilage components in the left axilla of a middle-aged woman.

Unlabelled: Lipoma is the most common type of benign soft tissue tumor. However, lipoma containing bone or cartilage is very rare, especially a tumor containing both of these components. We encountered a 59-year-old woman who had a benign lipoma of the infraspinatus muscle that contained both osseous and chondral components.

A technique for auricular keloid core excision using a skin biopsy punch.

Background: Keloids of the auricular region, resulting from ear piercing or external injury, are a common cosmetic problem. Surgical treatment followed by conservative management often is needed. The "hollowing out method for keloids of the auricle" retains the skin over the keloid lesion to minimize tension on the wound.

New training method of creating ear framework by using precise copy of costal cartilage.

New method to exercise creation of three-dimensional cartilage framework for ear by using a precise copy of the costal cartilage is presented. Precise negative impressions were taken from harvested 6th to 9th rib cartilage using molding material. Silicon-type dental impression material was injected into the negative impression to create a copy of the costal cartilage.