Oral pigmented lesions.
Explore the source record for details and available documents.
Biopsy, Needle↗
Biomedical subjects
Adone Baroni
Publications and source records attributed to Adone Baroni.
Bowenoid papulosis at the site of prior herpes progenitalis.
A 35-year-old dentist came to the authors' attention for papular and vegetating lesions that had appeared on his penile shaft over the last 2 months. The lesions differed in their features: pink and vegetating on the left side, brown and papular on the right side (Figure 1). The obvious clinical diagnoses of genital warts on the left and Bowenoid papulosis on the right were confirmed by punch biopsies, which showed epithelial hyperplasia with diffuse cell vacuolization (koilocytes)in the left biopsy and moderate nuclear dysplasia in the right one (Figure 2). Human papillomavirus phenotyping was not performed. Interestingly, the patient reported a clear medical history of herpes progenital is (only one episode) that had involved the right side of his glans and prepuce 4 years ago. An immunomodulating treatment with imiquimod was started in the attempt to cure both the genital warts and Bowenoid papulosis lesions (imiquimod was applied three times a week for 8 weeks). At the end of the treatment, the genital warts had disappeared, whereas many Bowenoid papulosis lesions were still present on the right side of the penis (Figure 3). Treated with liquid nitrogen as well, the Bowenoid papulosis lesions disappeared.
Adult↗
Lyell's syndrome.
Lyell's syndrome, or toxic epidermal necrolysis, is a rare, potentially life-threatening mucocutaneous disease, usually provoked by the administration of a drug and characterized by acute necrosis of the epidermis. The drugs most frequently incriminated are nonsteroidal anti-inflammatory drugs, chemotherapics, antibiotics, and anticonvulsants. An immunologic response to immunocomplexes formed by metabolites of the causal drug and the common tissue antigens is thought to be responsible for this disorder. Preceded by fever, general malaise, and other flu-like symptoms, bullous and erosive lesions involve oral, ocular, and genital mucosae; and vast areas of the skin with extensive dermoepidermal detachments. The loss of fluid and electrolytes and supervening infections lead to a severe general condition, often with fatal outcome. Treatment is based on the administration of fluids, electrolytes, and albumin. The use of systemic corticosteroids is controversial. Plasmapheresis and hyperbaric oxygen proved to be useful. The employment of high doses of IV immunoglobulins is a novel, valid, and promising treatment.
Humans↗
Sporotrichosis: success of itraconazole treatment.
An 82-year-old man with hypothyroidism presented with an ulcerated nodule on the dorsum of his left hand (Figure 1). The lesion had been present for about 3 months. Similar lesions were present along the lymphatic distribution of the dorsum of his left forearm, proximal to the first lesion, as well as the dorsum of his right forearm. Laboratory findings were normal. Immune complexes, complement 3, and complement 4 were negative. A biopsy from an ulcerated nodule was taken for both histologic examination and culture. Hematoxylin and eosin sections showed a nonspecific chronic granulomatous reaction. No fungi were detected by periodic acid-Schiff stain and methenamine silver stain. Culture of tissue obtained from a skin biopsy of 1 lesion placed directly on Sabouraud agar produced colonies of Sporothrix schenckii (Figure 2). The diagnosis of lymphocutaneous sporotrichosis was confirmed.
Aged, 80 and over↗