Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 5-Aminolaevulinic acid  (1)
  • Cutaneous polyarteritis nodosa  (1)
  • Ehlers-Danlos syndrome  (1)
  • Electron microscopy  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Clinical oral investigations 4 (2000), S. 66-69 
    ISSN: 1436-3771
    Keywords: Key words Periodontitis ; Gingival recession ; Abnormal scarring ; Early tooth loss ; Ehlers-Danlos syndrome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Ehlers-Danlos type VIII is a rare disorder characterized by soft, hyperextensible skin, abnormal scarring, easy bruising, and generalized periodontitis with early loss of teeth. To illustrate the clinical dermatological and dental features, we present the case history of a 20-year-old patient who has suffered from poor healing of wounds at the shins and knees since childhood, which have developed into hyperpigmented atrophic scars. In the course of orthodontic treatment during the last 3 years, severe apical root resorption, gingival recession, and loss of alveolar bone were observed. Family history was noncontributory for any skin or tooth disorders. The typical clinical signs confirmed the diagnosis of Ehlers-Danlos syndrome type VIII. As there is no specific treatment for the disorder, management is limited to the symptomatic treatment of the dental disease. It seems advisable to consider carefully the indications for orthodontic treatment in patients with Ehlers-Danlos type VIII syndrome.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 71 (1993), S. 305-309 
    ISSN: 1432-1440
    Keywords: Cutaneous polyarteritis nodosa ; Relapsing polychondritis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Relapsing polychondritis is an infrequently diagnosed, though not neccessarily uncommon, systemic disorder characterized by recurrent and potentially destructive inflammation of cartilaginous structures, the eye, and the audiovestibular and cardiovascular systems. Although dermal involvement occurs in approximately 25% of patients with relapsing polychondritis, in only few cases has a skin biopsy been obtained revealing lesions such as leukocytoclastic vasculitis, livedo reticularis, erythema nodosum or keratodermia blenorrhagicum. We describe a patient with relapsing polychondritis in whom a cutaneous polyarteritis nodosa preceded cartilage inflammation by 6 months. Cutaneous polyarteritis nodosa is a rare form of vasculitis that appears to be limited primarily to the skin, muscles, and joints. In contrast to the systemic form of the disease it is characterized by the absence of visceral lesions and a relapsing but benign course. The present case and the fact that vasculitis is a concomitant feature in approximately 30% of patients with relapsing polychondritis [21] demonstrates that this condition may not represent a distinct clinical entity.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1432-069X
    Keywords: Pityriasis rubra pilaris ; Histochemistry ; Autoradiography ; Electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Five patients with pityriasis rubra pilaris (PRP) were analyzed by means of light and electron microscopy as well as by histochemistry and autoradiography. The results were compared with findings in psoriasis vulgaris. In PRP we found a moderate increase of the labeling index of epidermal cells, a highly increased labeling index of dermal infiltrating cells, and a mild spongiosis, and in the stratum granulosum, a decreased number of tonofilaments and an increased number of keratinosomes. The horny layer in PRP showed a pronounced histochemical and electron microscopical parakeratosis, even when histological parakeratosis was absent. In contrast with psoriasis vulgaris, there was no exocytosis of polymorphonuclear leucocytes into the epidermis, the papillomatosis index was normal, and there were no tortuous capillaries in the dermal papillae. The stratum granulosum was always present and sometimes thickened, showing electron microscopical changes different from those referred to in psoriasis. These changes point to a relatively distinct pattern of epidermal changes in PRP.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 1432-1173
    Keywords: Schlüsselwörter Basalzellkarzinom ; Fluoreszenz ; Biopsie ; 5-Aminolävolinsäure ; Digitale Bilderarbeitung ; Keywords Basal cell carcinoma ; Fluorescence ; Biopsy ; 5-Aminolaevulinic acid ; Digital Imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract Background and Objective. The diagnosis of precancerous and cancerous skin leasons in pretreated or scarred skin can be difficult. The determination of the right biopsy site in a suspected area depends largely on the physician's experience. Patients/Methods. The possibility of using a CCD-camera system and measuring tumor fluorescence following topical application of 5-aminolevulinic acid was employed in a single case to facilitate accurate choice of biopsy site. Results. An user-independent evaluation of the induced fluorescence intensity was achieved by means of the described optical system and digital imaging. The contrast of the acquired fluorescence images can be significantly enhanced and allows the determination of a threshold. As result an initial, clinically not visible basal cell carcinoma was detected and excised by a punch biopsy in toto. Conclusions. Using the described optical system the early recognition of a superficial basal cell carcinoma and the determination of the exact biopsy site was achieved in pretreated skin. The routine employment of the system will be assessed in a prospective study.
    Notes: Zusammenfassung Hintergrund und Fragestellung. Die Diagnose von präkanzerösen oder kanzerösen Hautveränderungen in vorbehandelten oder vernarbten Arealen kann oft sehr schwierig sein. Insbesondere hängt die richtige Wahl der Entnahmestelle von Gewebeproben zum Malignitätsausschluss von der Erfahrung des behandelnden Arztes ab. Patienten/Methodik. In dieser Arbeit soll anhand eines Fallberichtes dargestellt werden, wie durch die Verwendung eines CCD-Kamera-Systems und der Fluoreszenzdiagnostik nach topischer Applikation von 5-Aminolävulinsäure eine gezielte Entnahme von Gewebeproben stattfinden kann. Ergebnisse. Mithilfe des verwendeten optischen Systems und digitaler Bildverarbeitung wurde eine benutzerunabhängige Bewertung der gemessenen Fluoreszenzintensitäten möglich. Zudem konnte der Kontrast in den Fluoreszenzbildern entscheidend verstärkt und ein Schwellwert für einen Malignitätsverdacht festgelegt werden. Im vorliegenden Fall konnte so ein initiales, subklinisches Basalzellkarzinom detektiert werden, das bei der anschließenden Biopsie in toto exzidiert wurde. Schlussfolgerungen. Durch das vorgestellte System sind eine frühzeitige Erkennung von oberflächlichen Basalzellkarzinomen und eine gezielte Gewebeentnahme möglich. Die routinemäßige Einsetzbarkeit des Systems wird in einer größer angelegten Studie überprüft werden.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...