Localization of Keratinolytic Proteinase in Skin Tissue Sections of Guinea Pigs with Microsporum canis Infection by Immunoperoxidase Technique in Electron Microscopy

An immunoperoxdase technique in electron microscopy was used to investigate the ultrastructural site of keratinolytic proteinase (KPase) of M crosporum cans in sections of skin from guinea pigs infected with the same organism. Ultrastructurally, the KPase was present only in the cell walls of the invading dermatophytes as a continuous deposition of the electron-dense reaction product on the inner and outer aspects of the cell wall of the fungal hyphae without deposition in the keratin surrounding the invading hyphae. Our results suggest that the KPase may not play an absolute role in the invasion of dermatophytes into keratinized tissue in vivo.

Three cases of subcutaneous sarcoidosis / 대한피부과학회지

We report herein three cases of subcutaneous sarcoidosis without apparent internal lesion. The patients had multiple subcutaneous nodules on the extremities and abdomen. Hyper-gammaglobulinemia, a relative increase of T suppressor cells, and increased serum angiotensin converting enzyme level and skin anergy were observed. Histopathologic findings revealed sarcoidal granulomas involving the subcutaneous fat tissue. The lesions of two cases resolved spontaneously and the other one case required systemic corticosteroid therapy.

Hereditary Hemorrhagic Telangiectasia in a Family / 대한피부과학회지

We report three cases of hereditary hemorrhagic telangiectasia in one family. The punctiform, spider-like and nodular telangieectatic lesions were presented in these all patients, the father, son an daughter. But nevus flammeus-like lesion which was the unusual manifestation of hereditary hemorrhagic telangiectasia was noticed on daughters chest. There were no abnormal laboratory findings and no evidence of systemic disease. Histological findings showed only dilated telangiectatic blood vessels in the upper dermis.