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Paye M, Simion FA, Pierard GE. Dansyl chloride labelling of stratum corneum: its rapid extraction from skin can predict skin irritation due to surfactants and cleansing products. Contact Dermatitis 1994; 30:91-6. [PMID: 7514520 DOI: 10.1111/j.1600-0536.1994.tb00570.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The irritation potential of surfactants and body cleansing products was determined by evaluating the removal of dansyl chloride from the skin. Dilute solutions (2% active ingredient, w/v) of surfactants and soap extract fluorescence from the skin within 30 min. This is probably a physicochemical effect as it is too rapid to be due to a modification of epidermal cell turnover rate. Such an extraction of the fluorescent dye occurs without any clinical sign of irritation. However, it may represent an early phase of the skin irritation process, because it is related to the ranking of irritant products as determined by other assessment methods.
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27
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Raftopoulos C, Pierard GE, Rétif C, Braude P, Brotchi J. Endoscopic cure of a giant sacral meningocele associated with Marfan's syndrome: case report. Neurosurgery 1992; 30:765-8. [PMID: 1584392 DOI: 10.1097/00006123-199205000-00020] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
An unusual anterior sacral meningocele associated with Marfan's syndrome, with demonstrated dural anomalies related to Marfan's syndrome is reported. Endoscopy enabled complete exploration of the meningocele, its morphological description, and ultimate cure. The meningocele resembled an hourglass made up of intrasacral and anterior sacral components. The communication of this bilobed malformation with the dural sac was so small that only the intrathecal injection of a colored solution allowed its localization. The closure of this communication was accomplished under endoscopic view by a single stitch. The postoperative course of the patient was characterized by immediate disappearance of the preoperative clinical signs. Computed tomographic scans demonstrated progressive complete collapse of the anterior sacral meningocele and partial resolution of the intrasacral component. Dural anomalies of Marfan's syndrome are described, and their relationship to the formation of the meningocele is discussed.
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28
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Pans A, Pierard GE. A comparison of intraperitoneal prostheses for the repair of abdominal muscular wall defects in rats. Eur Surg Res 1992; 24:54-60. [PMID: 1534053 DOI: 10.1159/000129188] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We compared the tissue response to the intraperitoneal implantation of three different prostheses (Gore-Tex, Mersilène, Vicryl-Mersilène) used to repair abdominal wall defects in rats. Vicryl-Mersilène is a new experimental prosthesis made of Dacron (Mersilène) coated with absorbable polyglactin (Vicryl). The least amount of adhesions to omentum and gut was found with Mersilène. Gore-Tex was responsible for the accumulation of neutrophils rather than macrophages mostly collected in close contact with Mersilène and Vicryl-Mersilène. Fibrosis, evaluated by histology and computerized morphometry, was mostly found with Vicryl-Mersilène. This should allow a better incorporation of Mersilène and a tighter anchorage to the abdominal wall, after Vicryl resorption.
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29
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Verloes A, Pierard GE, Le Merrer M, Maroteaux P. Recessive metaphyseal dysplasia without hypotrichosis. A syndrome clinically distinct from McKusick cartilage-hair hypoplasia. J Med Genet 1990; 27:693-6. [PMID: 2277385 PMCID: PMC1017260 DOI: 10.1136/jmg.27.11.693] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Among children with recessive metaphyseal dysplasia involving the knees and extremities, two types can be distinguished. In true cartilage-hair hypoplasia, as described by McKusick, many patients show clinical hair involvement and variable immunodeficiency. We present a series of six patients with the same radiological changes, but without apparent hypotrichosis. We suggest that they should be considered as having a variant form of cartilage-hair hypoplasia, with a clinically distinct phenotype, which could be as common as 'true' cartilage-hair hypoplasia among non-Amish populations. Microscopic examination of the hair may show reduction in the diameter of the hair shaft. This form of metaphyseal dysplasia may result from allelic heterogeneity.
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31
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Ben Mosbah T, Hermanns JF, Lother Y, Pierard GE. [Lanois Bensaude Madelung's lipomatosis of the neck]. LA TUNISIE MEDICALE 1990; 68:231-4. [PMID: 2356584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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32
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33
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Pierard GE. [Granulomatous vasculitis]. PHLEBOLOGIE 1987; 40:73-80. [PMID: 2883690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Granulomatous vasculitis are defined as a pathological process due to the destruction of vessels by a granulomatous infiltrate. The inflammatory infiltrate is made of several cellular lines in variable proportions. These diseases are classified according to the affected organs and to the nature of the vessels. Some granulomatous vasculitis remain cryptogenetic in nature, others have an infectious origin, and still others follow a necrotizing leucocytoclastic vasculitis with immune complexes.
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34
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Darcis JM, Etienne M, Demonty J, Christophe J, Pierard GE. Candida albicans septicemia with folliculitis in heroin addicts. Am J Dermatopathol 1986; 8:501-4. [PMID: 3812924 DOI: 10.1097/00000372-198612000-00008] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Disseminated candidiasis occurring in heroin abusers has been reported in the recent years as a peculiar type of septicemia. Dermatological lesions consist of folliculitis with Candida albicans within hair shafts.
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35
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Pierard GE, Franchimont C, Abrassart C, Bardiau C, Bataille C, Christophe J, Hermanns JF, Le T, Legrain A, Letot B. [Bullous skin diseases]. REVUE MEDICALE DE LIEGE 1986; 41:591-601. [PMID: 3534987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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36
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Pierard GE. How is the basement membrane attached to the dermis? Stereology of the interlacing fibers at the underface of the dermo-epidermal basement membrane. Am J Dermatopathol 1986; 8:234-6. [PMID: 3728882 DOI: 10.1097/00000372-198606000-00010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A three-dimensional view of the underface of the dermoepidermal basement membrane is provided by scanning electron microscopy and correlated with aspects of optical and transmission electron microscopy. A thin network of interlacing fibers runs parallel to the basement membrane and appears to be attached to it from site to site through loops of anchoring fibers. A model of the attachment of the basement to the dermis is proposed.
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37
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Pierard GE, Christophe J, Belachew M, Bury J, Franchimont C, Henry C, Lapiere CM, Lapiere M, Letot B, Mandojana R. [Pigmented tumors]. REVUE MEDICALE DE LIEGE 1986; 41:258-63. [PMID: 3715270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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38
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Pierard GE, Pierard-Franchimont C, Lapière CM. [Cutaneous manifestations of AIDS]. REVUE MEDICALE DE LIEGE 1986; 41:189-98. [PMID: 3518008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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39
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Pierard GE. [Seborrhea and acne]. REVUE MEDICALE DE LIEGE 1986; 41:1-12. [PMID: 2937127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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40
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Etienne M, Nemery A, Darcis JM, Pierard GE, Demonty J. Disseminated candidiasis in heroin addicts. Report of two cases and review of the literature. Acta Clin Belg 1986; 41:18-22. [PMID: 3705878 DOI: 10.1080/22953337.1986.11719119] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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41
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Pierard-Franchimont C, Pierard GE. Massive lymphocyte-mediated apoptosis during the early stage of pseudopelade. DERMATOLOGICA 1986; 172:254-7. [PMID: 3743844 DOI: 10.1159/000249350] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The early evolving lesions of the hair follicles are described in pseudopelade, a type of cicatricial alopecia where clues for the diagnosis of lupus erythematosus or lichen plano-pilaris are lacking. A sudden and synchronized cell death of all the cells of the epithelial sheaths of the hair follicles occurs and is associated with a dense infiltration by lymphocytes. The epidermis remains uninvolved. This unique aspect is most probably related to the mechanism of apoptosis. Its intensity and extension are much more pronounced than in lichen planus and in lupus erythematosus. Pathogenesis of at least some cicatricial alopecias could therefore be related to massive apoptosis without evident and close relationship with the classical etiologies, i.e. lichen planus and lupus erythematosus.
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42
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Pierard GE, Ackerman AB, Clark WH, Rywlin AM. [Diagnosis, prevention and treatment of malignant melanoma]. REVUE MEDICALE DE LIEGE 1985; 40:803-7. [PMID: 4089363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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43
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Abstract
Nevi of connective tissue may be conveniently divided according to clinical and pathologic presentations into two types, namely, the adventitial and the reticular. Nevi of adventitial connective tissue are usually small and situated on the extremities. They are characterized by accumulations of fibroblasts and apposition of collagen around adnexa and vessels. Nevi of reticular connective tissue are usually situated on the trunk. They consist of faulty distributions and amounts of collagen bundles, elastic fibers, or proteoglycans.
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44
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Legrain A, Pierard GE. Molluscum contagiosum may affect primarily the epidermis without involving hair follicles. Am J Dermatopathol 1985; 7:131-2. [PMID: 4025728 DOI: 10.1097/00000372-198504000-00006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Lesions of molluscum contagiosum occur on palms and in skin tags. Their origin in places where there are no hair follicles proves that the epidermis itself may be infected by the causative poxvirus. The central umbilications of lesions are therefore not necessarily related to acrotrichia.
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45
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Pierard GE, Pierard-Franchimont C, Saint-Léger D, Lévêque JL. [Sebum and seborrhea]. REVUE MEDICALE DE LIEGE 1985; 40:197-203. [PMID: 3158057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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46
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Pierard-Franchimont C, Pierard GE. Skin surface stripping in diagnosing and monitoring inflammatory, xerotic, and neoplastic diseases. Pediatr Dermatol 1985; 2:180-4. [PMID: 3991372 DOI: 10.1111/j.1525-1470.1985.tb01048.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Skin surface stripping is a useful and simple diagnostic tool for the diagnosis of a number of diseases that affect the skin during childhood and adolescence. The procedure has proved to be especially valuable in inflammatory, xerotic, and neoplastic conditions as it provides information regarding pathologic changes as well as diagnosis.
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47
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Abstract
A technique for isolation of the blood vessels from the dermis is presented. A number of characteristics of the vessels may be visualized in this way.
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48
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Pierard GE, Pierard-Franchimont C, Le T. Neoplastic proliferation in a case of epidermotropic high-grade malignant lymphoma associated with hypercalcemia. DERMATOLOGICA 1985; 171:278-82. [PMID: 3000841 DOI: 10.1159/000249437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We report a case of epidermotropic high-grade malignant lymphoma associated with hypercalcemia occurring in a European woman aged 30 years. The clinical, histological, and biological presentation of the patient could enter the spectrum of HOTS (hypercalcemia, osteolysis, T cell lymphoma syndrome). The proliferation of neoplastic lymphocytes was very high in patch, plaques, and nodules of the skin.
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49
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50
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Pierard GE, Pierard-Franchimont C. [Pruriginous eruptions in pregnancy]. REVUE MEDICALE DE LIEGE 1984; 39:757-60. [PMID: 6515186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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