Two cases of pseudoepitheliomatous, micaceous and keratotic balanitis are presented and their clinical and histological features are discussed. This rare condition of the glans penis was originally thought to be benign, but more recent evidence indicates that the lesion is a manifestation of verrucous carcinoma. Consequently, the treatment of choice is excision with a wide margin. We suggest the new name, micaceous and verrucous malignant balanitis.
A study of 11 facial lesions from 7 patients with Cowden's disease indicated that most belong to a spectrum of related follicular malformations. The most distinctive lesions included multiple facial trichilemmomas, which were frequently cylindrical, resembling a blown-up hair follicle, but could be lobular. Four of the 5 trichilemmomal lesions were from the centrofacial area. Three periauricular lesions showed the pattern of tumor of follicular infundibulum without trichilemmonal features. Two lesions were epidermal without a follicular component and resembled digitate warts. No evidence of virus infection was found using an antiserum to papilloma virus.
Five cases of Riedel's invasive fibrous thyroiditis are presented. Clinically and histopathologically all cases fulfilled the criteria for this lesion. In both small and large veins there were inflammatory changes and obliteration of the lumen, followed by sclerosis. These changes were found in each operative specimen, and seemed to be a diagnostic feature of invasive fibrous thyroiditis. We consider this change to be an occlusive phlebitis, and have noted that it occurs in association with multifocal fibrosclerosis. Three stages can be recognised: infiltrative, occlusive and sclerotic. In other thyroid lesions such as Hashimoto's thyroiditis, granulomatous thyroiditis of the Quervain type and adenomatous goitre these peculiar changes in the veins were not found.
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