Biomedical subjects

N Y Valente

Publications and source records attributed to N Y Valente.

9 recordsLinked to original sources

PubMed1995

[Importance of Perls stain in histologic diagnosis of Kaposi sarcoma].

The authors studied 27 cases of Kaposi's sarcoma, 23 cases of pyogenic granuloma, 18 cases of hemangioma, 17 cases of stasis dermatitis and 9 cases of dermatofibroma. In all these cases, they used the hematoxylin-eosin stain and Perls' stain', and they showed the presence of hemosiderin in all the cases of Kaposi's sarcoma and stasis dermatitis. The hemangioma and the dermatofibroma presented 50% of positivity, and the pyogenic granuloma, only 26.1%.

Adult↗

PubMed1990

Subcutaneous mucormycosis caused by Mucor hiemalis Wehmer f. luteus (Linnemann) Schipper 1973.

The authors report a case of subcutaneous mucormycosis in a diabetic patient with verrucous lesions in the fourth finger of the right hand. Initially diagnosed as a fixed cutaneous sporotrichosis case, success was obtained with the use of potassium iodide with healing of the lesion in a period of nearly 5 months. At present the patient remains under clinical observation with no treatment or relapse.

Aged↗

PubMed1990

[Poikiloderma congenitale of the Kindler type associated with multiple seborrheic warts].

A case an eleven year old girl with congenital poikiloderma, generalized xerosis and cutaneous atrophy, recurrent blister in extremities, sclerosis of the fingers and toes diffuse hyperkeratosis of palms and soles and webbing between some toes is reported here. Multiple seborrheic keratosis were also found, an association hitherto not mentioned with congenital poikiloderma.

Child↗

PubMed1988

[Hypereosinophilic syndrome. Cutaneous picture of "erythema annulare centrifugum"--comparison with ultrastructural study].

The authors present the third case in the literature of hypereosinophilic syndrome with "erythema annulare centrifugum" like lesions. Cutaneous manifestations were the first sign of the disease. Laboratory investigation including ultrastructural study of cutaneous lesions. This kind of investigation has been done before in only one instance. Clinical and laboratory features of the case are fully discussed taking into account literature findings.

Eosinophilia↗

PubMed1988

Cutaneous and ungual phaeohyphomycosis caused by species of Chaetomium Kunze (1817) ex Fresenius, 1829.

Two cases of cutaneous and ungual phaeohyphomycosis caused by species of Chaetomium are reported. The patients showed no clinical signs of immunodeficiency. In Case 1 there was a small, ulcerated, crusted lesion on the right forearm. Direct microscopical examination of material from this lesion showed light-brown hyphae with thick-walled cells. The fungus isolated was identified as Chaetomium globosum. Case 2 had lesions of the fingernails. Direct microscopy showed dematiaceous septate hyphae in the nail. The isolate from the nails was identified as Chaetomium perpulchrum. Identification of the fungi was based on the classification of Ames (1963) as adapted by Cooke (1986). Such infections due to Chaetomium species are rare.

Chaetomium↗

PubMed1986

[Large cell acanthoma].

The authors relate a clinical case of large cell acanthoma with multiple lesions that predominate on the inferior limbs. They comment the nosological position, the clinical aspects and, concerning the histopathology, emphasize the enlarged dimensions of the cellular nuclei in acanthoma and the differential diagnosis. Probably, the large cell acanthoma is a much more frequent entity that has not been diagnosed due to the little knowledge of this pathology.

Adult↗

PubMed1986

[Treatment of chromomycosis with liquid nitrogen].

Five patients with chromomycosis have been treated by liquid nitrogen application. The evolution of disease has been of one to twenty five years, with 4 patients with verrucous patches and one patient with sarcoid-like lesion. In all cultures grows-up Fonseca pedrosi. The authors believe that this method of treatment has advantage to be more economic, to avoid hospitalization and surgical acts with anesthesia, and also could be realized at ambulatory level. The efficacy of this method has been proved by the follow-up the patients during a period between two to four years, without any recurrency.

Adult↗

PubMed1986

[Malignant melanoma (review of 68 cases)].

A clinica pathologic revision was performed about 68 patients with malignant melanoma of the Hospital dos Servidores Publicos do Estado de São Paulo. The authors had checked the data concerning to color, age and sex of the patients, localisation, clinical aspect of the lesions and clinical evolution of the cases. They made comments on the histopathology related to Clark's levels, the depth of tumors (Breslow), solar elastosis and inflammatory infiltrate, in relation with the clinical evolution of the cases.

Adolescent↗

PubMed1983

[Pitted keratolysis. Presentation of 2 cases with culture of lesions positive for bacteria of the genus Corynebacterium].

The authors briefly review the literature about Pitted keratolysis emphasizing the etiopathogenesis. They report two cases of the disease in which the lesions were investigated for the etiologic agent. The search for Fungi using direct exam and culture in Sabouraud's medium was negative. Gram, Neisser and Neisser-Gins' stains, culture in BHI medium and the biopsy were positive for bacteria of the Corynebacterium genus. These results are discussed.

Adult↗