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Biomedical subjects

G Guillet

Publications and source records attributed to G Guillet.

At least 145 records · Page 8Linked to original sources

Gianotti-Crosti syndrome: a study of 26 cases.

We have studied 26 patients presenting with a symmetrical papular or papulovesicular acrolocated eruption of more than 10 days duration. Mean age at onset was 2 years (range 10 months to 5.75 years). Lymphadenopathy was noted in eight cases, and hepatomegaly in one case. In 12 cases, histopathology and direct immunofluorescence were non-contributory. Cytolytic hepatitis occurred in one case and was associated with HBs antigenemia. A history of recent immunization was given in two cases. There was serological evidence of recent Epstein-Barr virus infection in seven out of 13 cases tested. Coxsackie B viruses were isolated from three patients, and cytomegalovirus was probably associated with the syndrome in one case. We conclude that the Gianotti-Crosti syndrome is not rare in France, and that non-hepatitis B virus (HBV)-associated cases are more frequent than the classical HBV-associated papular acrodermatitis of childhood.

Acrodermatitis↗

[Dermatitis caused by the manchineel tree].

Contact dermatitis form Hippomane mancinella L. (manchineel) is commonly observed in Caribbean and Central American Coast land. Its sap from leaf exudate and from the fruit induce severe dermatitis that may involve oral, ocular, genital mucous membranes and skin, depending on the mediate or direct type of contact. Intense itching or burning sensation occurs within an hour and is followed by painful erythema, vesicles, bullae or pustulae, the latter being highly suggestive of mancheneel. Oropharyngeal and ocular lesions may by very severe. The brief delay and the burnlike appearance of the lesions suggest an orthoergic mechanism due to a caustic that could be similar to the substance identified in an other species of Euphorbiacae as phorbol esters. Traditional and native remedies are presented herein.

Dermatitis, Contact↗

[Leprosy in young children. 2 cases at 3 years of age].

Two children (age 3 years) presented with leprosy in endemic area: one was type T (tuberculoid paucibacillary); the other was type BL (borderline lepromatous) considering a very fast evolution, and was treated as a multibacillary leprosy. The family of the second child reported that the onset of the disease was consecutive to an insect bite at 5 1/2 months of age. Such observations remind us that leprosy must be suspected or thought about very early since the incubation period is likely to be shorter than previously proclaimed.

Age Factors↗

[Kasabach-Merritt syndrome in infants. 2 cases].

Two infants presenting with Kasabach-Merritt syndrome point out several points: the hemangioma may look innocuous with small proportions. The coagulopathy may be represented by a simple thrombopenia or an intravascular coagulation (PDF, ethanol test) of bad prognosis. A review of 150 observations of Kasabach-Merritt syndrome suggests a simple therapeutic approach: corticotherapy (2 to 4 mg/kg) for 2 to 4 weeks or, if failure, antiaggregant drugs. Radiotherapy is proposed in cases of emergency. Heparin and antifibrinolytic treatments are restricted to cases with severe coagulopathy.

Female↗

[Anterior thoracic and intervertebral erosive joint diseases associated with palmoplantar pustulosis].

The authors report three cases of palmo-plantar pustulosis associated with articular signs: erosive arthritis of the right first sternocostal joint in 2 cases (without hypertrophy of the clavicle or the sternum) and atlanto-occipital arthropathy with marked neck stiffness in another case. The HLA phenotype of one case was: A2 - A9 - B14 - X - DR3 - DR4. A surgical sterno-costal biopsy revealed non-specific inflammatory lesions in 2 cases. In one of these cases, a Corynebacterium sp. was isolated. The clinical course was favourable in response to local antibiotic therapy in one case (follow-up of 8 years) and after treatment with non-steroidal anti-inflammatory agents in 2 cases (follow-up of one to two years). The skin biopsy revealed non-spongiform (and therefore non-psoriatic) unilocular pustulosis, distinguishing this non-bacterial pustulosis from pustular palmo-plantar psoriasis with which it is frequently confused. These cases are similar to the cases of "pustulotic arthro-osteitis" reported by Japanese authors (Sonozaki et al.), which appear to be rare in Europe. They seem to be an early form in a vast range of spondylo-arthropathies including rheumatism and acne conglobata. The aetio-pathogenesis of this syndrome is discussed; one of the cases is strongly suggestive of an infectious origin (Corynebacterium). These lesions do not appear to be a form of reactive arthritis, as the presence of HLA B27 is rare in both the European and the Japanese cases.

Adult↗

[Immature cutaneous hemangiomas. Epidemiologic study of 351 cases].

The purpose of this study was to determine the course of cutaneous immature angiomas in a population of 362 children examined in a pediatric dermatology unit from 1975 to 1982. 461 angiomas were observed in these patients: 110 were of the naevus flammaeus type (port wine stain) including 23 forehead salmon patches. 351 were immature angiomas (IA)--strawberry angiomas. 3.5 p. 100 of children were afflicted of two types of hemangiomas. Results concerning the 282 patients with 351 IA are detailed as followed: average follow-up: 2 years; sex-ratio M/S 1.9, most of them Caucasians. Prematurity (data obtained prospectively during 1982): 19 p. 100; clinical features: dermal: 253, subcutaneous: 35, mixed pattern 63; 2 IA or more were detected in 12 p. 100 of the patients; site: head and neck; 49 p. 100, trunk: 21 p. 100, upper limbs: 14.5 lower limbs: 12 p. 100, genitals 3.5 p. 100; maximal size during follow-up: less than 1 cm: 36 p. 100, between 1 and 3 cm: 43 p. 100, more than 3 cm; 21 p. 100; time of onset: 51 p. 100 were noted at birth, 35 p. 100 during the first month, 13 p. 100 after the first month. Course of untreated IA is shown in figure 1. At the end of follow-up, spontaneous evolution in 52 patients was judged; very good in 44 p. 100, good in 41 p. 100, poor or bad in 15 p. 100. Minor complications (ulceration, infection, bleeding) were observed in 12.8 p. 100. Functional impairment requiring therapy was present in 2/4 plantar IA, 3/30 eyelid IA, 3/3 IA with laryngeal involvement.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗

[The porphyria cutanea tarda group: their role among the enzyme defects of heme biosynthesis].

Porphyria cutanea tarda (PCT) is the most common porphyria. In contrast to the other porphyrias, which are undisputably hereditary, PCT was long considered to be acquired. However, the recent demonstration of a defect in uroporphyrinogen decarboxylase suggests that PCT is supported by a genetic factor. Though the hereditary or acquired nature of the enzymatic defect is still under debate, it seems that the disease has a polygenic origin involving an impairment of iron metabolism and a specific genetic background.

Carboxy-Lyases↗

[Brazilian pemphigus in a child in French Guyana. Discussion on the clinical polymorphism and epidemiology of the disease].

The observation in French Guyana of pemphigus foliaceus having long mimicked eczema or psoriasis and turning 5 year later as an exudative erythroderma, points out the clinical polymorphism of the disease. Several clinical features are analysed that might support the hypothesis of autonomy of the Brazilian type: such as for example joint involvement. But the main point concerns epidemiology since this disease seems to spread out from the classical endemic Brazilian provinces to northern countries as socio-economical conditions improve in the south.

Administration, Topical↗