Medicina cutanea ibero-latino-americana最新文献

60 children aged from one month to two years were studied: 15 presenting with childhood seborrheic dermatitis, 15 with childhood atopic dermatitis, 15 with various childhood dermatoses and 15 healthy asymptomatic children. Samples of cutaneous scales from the scalp, face, sternal area and inguinal area were taken for the purpose of determining the presence of ovale by direct microscopy examination and culture. P. ovale was found in 73% of the infants presenting with seborrheic dermatitis, in 33% of those with atopic dermatitis, in 33% of those with other dermatoses and in 53% of the healthy infants. The proportion of infants in whom all four samples were found to be positive to P. ovale was as follows: 42% for seborrheic dermatitis, 20% for atopic dermatitis, 20% for other childhood dermatoses and 23% in the healthy infants. The majority of infants with both positive microscopy and culture for P. ovale were aged one to eight months. The group presenting with seborrheic dermatitis was treated with 2% ketoconazole cream or two weeks. Clinical cure was achieved in 11; mycological examination was negative in 13. P. ovale was significantly more frequent in infants with seborrheic dermatitis than in infants belonging to the other three groups. The role of P. ovale in the pathophysiology of seborrheic dermatitis is discussed.

A case of multiple glomus tumour is described in a 33 year old man. The clinical and histopathological features are discussed, with the review of the literature. We discuss the types of glomus tumour and its differential features.

We report two patients with vitiligo-like lesions caused by contact with compounds containing phenols and toluene. The clinical, histopathologic and ultrastructural findings are compared with vitiligo. Two mechanisms may be present: one from direct enzymatic or cytotoxic action on melanocytes and the other through immunologic reaction.

Purpura fulminans is a catastrophic febrile illness, characterized by confluent ecchymosis skin lesions, low blood pressure an disseminated intravascular coagulation. The case of 32 year old female ratify that it is not only a pediatric condition. We emphasize the importance of an early diagnosis and the adequacy of the treatment. The possible etiology is discussed.

We report three familial cases of a particular type of ichthyosis bullosa. The clinical picture is different from bullous congenital ichthyosiform erythroderma, but the histologic and ultrastructural features are those of epidermolytic hyperkeratosis.

Dilated pore (Winer) is a not uncommon adnexal benign tumor with follicular differentiation. Clinically the lesion looks like a giant comedo, usually located on the facial area of the elderly. Due to annular elevation of the borders, differential diagnosis needs to be made with basal cell epithelioma and senile sebaceous adenoma. The histology shows a typical infundibular dilatation with subinfundibular atrophy of hair structures. The authors report two typical cases of this badly known but not infrequent lesions.

Carcinoembryonic antigen (CEA) has been studied extensively, in association with visceral tumors and normal tissues. Although CEA has been demonstrated in sweat gland cutaneous tumors, little is known about its presence in skin and epithelial related tumors. We studied the presence of CEA and keratin in keratoacanthomas and precancerous skin lesions using immunohistochemical techniques. Its distribution related with differentiation, proliferation and malignant potential is observed. The expression of both antigens is correlated.

The authors discuss the several aspects of the co-sensibilization in the infections produced by M. Tuberculosis and M. hanseniae. Attention is called to Rabello's pioneer works written in 1935 and the subsequent works written by several Argentinian and Brazilian authors. Special emphasis is made to the experimental works in animals by Azulay. The authors discuss the aspects of competitiveness, protection and the crossed granulomatosis answers to the infections.

We present a case of keratoacanthoma type II in a 38-year-old female patient, which developed in the thigh over the donor site of a laminar skin graft, six weeks after the procedure. The graft was utilized to cover the defect secondary to the resection of a melanoma. The possible role played by mechanical trauma in the development of this tumor, rare under such circumstances, is discussed. Similar previously published cases are reviewed.

We describe the case of one patient, 54-year-old male, with a keratoacanthoma centrifugum situated on the right auricular pavilion. The injury begins as a small nodule with a keratotic innermost part that rapidly is excavated, grows centrifugally, appearing as a new lesion, an expansion of the primary one, in the posterior higher region, with the same characteristics. These lesions join and perforate the auricular cartilaginous tissue.