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Biomedical subjects

Giuliano Zuccati

Publications and source records attributed to Giuliano Zuccati.

6 recordsLinked to original sources

Primary anetoderma and HIV infection: a case report.

Anetoderma is characterized by circumscribed areas of flaccid skin caused by the loss of elastic tissue in the dermis. It may be primary or secondary to various dermatoses. The primary form has been reported in patients with autoimmune diseases, increased levels of antiphospholipid antibodies, prothrombotic abnormalities, and recently, HIV-1 disease. The origin of anetoderma remains unknown. A case of primary anetoderma is reported in a 45-year-old man with asymptomatic HIV-1 infection who was receiving antiretroviral therapy. Laboratory research included the classic immunologic investigations and screening for prothrombotic abnormalities. Possible pathogenic mechanisms of anetoderma, especially with respect to HIV-1 infection and antiretroviral therapy, are discussed.

Elastic Tissue↗

Eruptive multiple blue nevi of the penis: a clinical dermoscopic pathologic case study.

Multiple blue nevi have rarely been reported, and the majority of the lesions are located on the trunk and lower extremities. The blue nevus is a rare lesion on genital mucosa and may cause confusion in differential diagnosis with other pigmented lesions such as genital melanocytic macules, lentigo simplex, and malignant melanoma. Here, we describe an unusual patient who presented with a sudden onset in adulthood of multiple blue nevi on the glans penis. The epiluminescence examination revealed a substantially homogenous bluish pigmentation, which led us to favor a diagnosis of blue nevus, whereas not entirely excluding the possibility of a regressing melanoma or a metastatic melanoma. Because of the well-known diagnostic value of the blue hue in the diagnosis of malignancy by dermoscopy, a careful examination of these lesions should be made in order to minimize any risk of misclassification with melanoma.

Adult↗

Pruritus ani.

In the anal region, pruritus may be both idiopathic (mainly of psychological/psychiatric origin) and secondary to an underlying disorder or related to local causes (mainly of dermatologic interest). Persistent pruritus ani is, in particular, a challenging experience for the dermatologist.

Diagnosis, Differential↗

Immunohistochemical study of carbonic anhydrase isozymes in human skin.

An increasing number of carbonic anhydrase (CA) isozymes have been discovered in human organs. However, there is little evidence concerning their expression in mammal skin, humans included, and the isozymes involved have not been identified yet. In this study, the distribution of three CA isozymes I, II and IX in human skin from healthy subjects was investigated using an immunohistochemical technique. Specific staining for CA I and II was detected in the basolateral plasma membrane of the epithelial cells of the spinous and basal layers of epidermis as well as in the endothelium of capillaries in the papillary dermis. A marked CA II immunoreactivity was mostly found in secretory cells of the sweat glands. No signal for CA IX was detected but on the plasma membranes and the cytoplasm of cells surrounding the hair shaft. The significance and biological role of CA isozymes expression in human skin is discussed.

Adult↗