Widespread areas of fine wrinkling of the skin had been noted for 2 years by a 42-year-old healthy white woman. Histological study disclosed a selective absence of elastic tissue strictly limited to the mid-dermis of the involved areas. It was postulated that an antecedent urticarial process may have led to such a specific zonal destruction of elastic tissue. The elastolytic process did not change or extend, and no urticarial lesions were seen during a year of observation.

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A 33-year-old man, who had been a teacher in Africa from 1966 to 1969, was hospitalizaed in December 1973 for radiculomyelitis with progressive paraplegia and analgesia of the lower limbs. On his fourth day in the hospital, a pruritic, papular dermatitis appeared on both lower thoracic paraspinal areas. Microscopical examination of biopsy specimens of skin from those areas showed schistosome ova within many palisading granulomas in the dermis. The morphological features of the skin lesions, as seen by gross and microscopical examination, and the morphological and staining characteristics and the pathophysiology of the schostosome organism will be discussed. The longevity of the adult worm in the portal circulation is particularly important; a long interval may elapse between the time the patient leaves the area where he became infected and the time of appearance of the lesions.

A malignant pilomatricoma is described in a dog. The primary tumor apparently developed in the metatarsal area where there were multiple intradermal skin nodules. Lymphatic invasion by tumor cells resulted in metastasis to the mammary glands, lymph nodes and lungs. The tumor is compared to the pilomatricoma in man where no metastasizing types have been identified.