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DOI: 10.1055/s-2008-1027432
© Georg Thieme Verlag KG Stuttgart · New York
Rezidivhäufigkeit nach Exzision von Bindehautmelanomen und adjuvanter Strontium-90-Kontaktbestrahlung
Recurrence Rate Following Adjuvant Strontium-90 Brachytherapy after Excision of Conjunctival MelanomaPublication History
Eingegangen: 30.12.2007
Angenommen: 21.2.2008
Publication Date:
18 July 2008 (online)

Zusammenfassung
Hintergrund: Aufgrund der hohen Rezidivrate nach Bindehautmelanomexzision wird eine adjuvante lokale Chemotherapie oder eine Bestrahlung empfohlen. Hierbei kommt u. a. die Strontium-90-Kontaktbestrahlung wegen der geringen Eindringtiefe der Strahlung infrage. Patienten und Methoden: 15 Patienten mit einem Bindehautmelanom erhielten nach Tumorexzision eine adjuvante Strontium-90-Kontaktbestrahlung. Diese erfolgte fraktioniert in neun Sitzungen à 6 Gy. Die durchschnittliche Nachbeobachtungszeit betrug 35 Monate (12 – 60 Monate). Ergebnisse: Bei 7 Patienten (46 %) zeigte sich im Beobachtungszeitraum kein Tumorrezidiv. Bei drei Patienten (20 %) kam es in den bestrahlten und benachbarten Arealen zu einem Rezidiv. Acht Patienten (53 %) wiesen neue Tumoren in nicht bestrahlten Bindehautarealen auf. Schlussfolgerungen: Durch eine adjuvante Strontium-90-Kontaktbestrahlung ist eine relativ sicher durchzuführende adjuvante Behandlung nach Exzision von Bindehautmelanomen. Häufige Nachkontrollen sind erforderlich, da sich weitere Tumoren in nicht bestrahlten Arealen ausbilden können, insbesondere beim Vorliegen einer Melanose.
Abstract
Background: Because of the high local recurrence rates after excision of conjunctival melanomas, adjuvant local chemotherapy or irradiation is recommended. Strontium-90 brachytherapy is one radiotherapeutic option due to its low penetration depth. Methods: 15 patients with conjunctival melanoma were treated with adjuvant strontium-90 brachytherapy after tumour excision. The treatment was fractionated into 9 irradiation sessions with 6 Gy each. The mean follow-up was 35 months (12 – 60 months). Results: Seven patients (46 %) had no recurrence during the follow-up. Three patients (20 %) had a recurrence in the treated or adjacent area. Eight patients (53 %) developed new tumours in non-treated areas. Conclusions: Strontium-90 brachytherapy is a useful adjuvant in the treatment of conjunctival melanomas. Regular ophthalmoscopic controls are necessary because of the high rate of new tumours in non-irradiated areas, especially in cases with primary acquired melanosis.
Schlüsselwörter
Bindehaut - okuläre Tumoren - Bindehautmelanom - Strontium-90 - Kontaktbestrahlung - Tumorexzision
Key words
conjunctiva - ocular tumours - conjunctival melanoma - strontium-90 - brachytherapy - tumour excision
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Dr. Lothar Krause
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Hindenburgdamm 30
12200 Berlin
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