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Biomedical subjects

E Marinho

Publications and source records attributed to E Marinho.

16 recordsLinked to original sources

[Smooth muscle hamartoma: anatomoclinical characteristics and nosological limits].

Smooth muscle hamartoma is an uncommon cutaneous dysembryoplasia usually diagnosed in infancy. Among the 61 cases published since 1923, 56 were congenital and 3 appeared in young adults. We report a case in which the lesions started at the age of 15 years as a papular plaque in the right mammary region of a young woman. A review of the literature showed that the usual clinical presentation is a frequently pigmented plaque made of often follicular papules and measuring 1 to 10 centimeters on average. Excessive hairiness is the most frequent sign, being observed in more than two-thirds of the cases, and Darier's pseudo-sign is present in about 53 p. 100 of the patients. The disease is electively located on the lumbar region, the back and the root of the limbs. In 3 cases the lesions were generalized and the patients looked like fatty "Michelin-Tire Babies". The course of the disease is always favourable, and associated pathologies remain exceptional: urticaria pigmentosa and psychomotor retardation have been reported in two cases of the generalized form. Histology is characterized by the presence of numerous smooth muscle fibres disseminated in the dermis and diversely oriented, sometimes in contact with hair follicles which retain their normal morphology. The differential clinical diagnosis is with naevocytic naevus, café-au-lait spots, mastocytosis and connective tissue hamartoma. Belatedly revealed forms of the disease must be distinguished from Becker's hamartoma, but it must be known that in certain cases the classification is so difficult that some authors have suggested that smooth muscle hamartoma and Becker's hamartoma are only two poles of a single spectrum of dysembryoplastic lesions involving to varying degrees the epidermic and hair structures. Finally, the distinction between the localized forms of late onset smooth muscle hamartoma and multiple leiomyomas "en plaques" remains difficult both anatomico-clinically and nosologically.

Adolescent

[Epithelio-lymphohistiocytic tumor. Apropos of 3 cases].

We report three cases of epithelio-lympho-histiocytic tumour with very original histological features. The patients were young adults presenting with a nodular lesion on the face which had been present for several years. No recurrence was observed after surgical excision. Histologically, the dermal lesion consisted of epithelial pouches edged with a few layers of basal-like cells and filled with lymphocytes and large clear cells. Relations were found between these lobules and hair follicles, and rudiments of piliary differentiation were noted. The stroma was dense and infiltrated by small lymphocytes and large clear cells. An immunohistochemical study showed marking of the large clear cells by the S 100 protein, which suggested that they were Langerhans cells. The lymphocytes were recognized by the common panleucocyte antibody. The KL 1 antibody marked a few isolated cells within the lobules, but not the basal-like cells. These cases seemed to be similar to the 7 cases reported in the literature by Santa-Cruz and Barr who used the term lymphoepithelial tumour of the skin. We felt justified in putting the stress on the histiocytic component of this tumour and calling it epithelio-lympho-histiocytic tumour. We agree with these authors that this is a tumour of the appendages of the skin and in particular the hair.

Adult

[Eccrine spiradenoma. Study of a peculiar case].

The authors describe a case of eccrine spiradenoma with unusual histological features generally associated with syringoma. The clinical aspects of this case and the histogenesis of the tumor are discussed.

Adenoma, Sweat Gland

[Smooth muscle hamartoma or nevus of Becker? Apropos of 4 cases].

Theoretically, Becker's melanosis or hairy epidermal nevus and smooth muscle hamartoma are two quite separate entities. In fact, there are cases which could be considered as intermediate. As a matter of fact, a slight underlying smooth muscle hyperplasia can be seen in Becker's nevus; on the other hand, hypermelanosis of the basal layer and hypertrichosis may be encountered in smooth muscle hamartoma. The 4 here reported cases are examples of diagnostic difficulties for which the sometimes not clear-cut limits of these 2 types of lesion can be responsible.

Adult

[Deep skin lesions of lupus erythematosus].

The authors report 2 cases of lupus erythematosus (LE) with deep cutaneous lesions. In both cases the lupus panniculitis presented as hard, infiltrated subcutaneous plaques situated symmetrically on the external aspect of both arms and on the upper parts of the buttocks. The diagnosis was confirmed on clinical, histological, immunohistological and therapeutic data. These 2 reports and the 43 cases in the literature dating from 1967, illustrate the main features of lupus panniculitis. The clinical appearances and sites are very stereotyped and immediately suggest the diagnosis even in the absence of other clinical and/or biological signs of lupus. The evolution is very slow and is characterised by dramatic regression of the inflammatory signs with synthetic antimalarial drugs. These deep skin lesions are observed in both purely cutaneous chronic lupus and in systemic lupus which is usually relatively inactive. This prevents the identification of a special form of this disease with a specific evolution and prognosis.

Adult

HCS, estriol and oxytocinase in maternal serum and neonatal condition in high risk pregnancies.

In order to find a reliable index of fetal wellbeing, maternal estriol, hCS and oxytocinase levels were related with condition of the neonate. Fifty six high risk pregnancies were studied. Estriol and hCS were determined by specific radioimmunoassay and oxytocinase with a colorimetric method. The condition of the newborn was evaluated by the APGAR score. Neonates were divided into two groups, depressed (APGAR score 0-6) and vigorous (APGAR score 7-10). When the mean birthweights of both groups were statistically different, maternal estriol levels were corrected to avoid the influencing factor of newborn weight. Mean maternal estriol level corresponding to vigorous newborns was 46.73 ng/ml. This value was statistically higher than that corresponding to the group of depressed newborns, which was 26.25 ng/ml (Fig. 1). The mean birthweight of depressed infants (2,382.75 g) was statistically lower than that of the vigorous group (3,044.75 g). The corrected mean maternal estriol values of vigorous neonates (45.44 ng/ml) was different from that of depressed ones (25.14 ng/ml) (Fig. 2). When patients were divided according to maternal diseases (diabetes, vascular pathology, Rh sensitization) serum estriol levels of the mother were statistically different according to the Apgar score of the newborns. There was no significant difference between serum hCS and oxytocinase levels of mothers with depressed and vigorous newborns. Discarding fetal weight as an influencing factor in maternal hormone level, our results indicate the suitability of maternal serum estriol determinations to predict condition of the newborns in high risk pregnancies.

Aminopeptidases