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Spektrum der Augenheilkunde
Erschienen in:

01.12.2013 | original article

Genetic analysis of uveal melanoma by array comparative genomic hybridization before and after radiotherapy

verfasst von: Dr. Werner Wackernagel, Dr.in. Lisa Tarmann, Dr. Christoph Mayer, a.o. Univ. Prof. Dr. Gerald Langmann, Univ. Prof. Dr. Andreas Wedrich

Erschienen in: Spektrum der Augenheilkunde | Ausgabe 6/2013

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Summary

Background

Genetic analysis of choroidal melanoma is frequently used to estimate the risk of metastatic spread of the tumor. Obtaining a biopsy for genetic analysis, however, can be difficult and sometimes unsuccessful. We evaluated the feasibility and accuracy of genetic testing using array comparative genomic hybridization (CGH) after radiotherapy, from tumor samples obtained by endoresection or after secondary enucleation.

Material and methods

Fifteen choroidal melanoma samples obtained after radiotherapy (Ruthenium-106 plaque brachytherapy or Gamma-Knife radiosurgery) were analyzed by array CGH to detect chromosomal aberrations (monosomy 3 and trisomy 8q), and the results were compared with pre-irradiation findings in five cases.

Results

Array CGH was successfully performed in all 15 cases. Time from radiotherapy to obtaining the sample for cytogenetic testing was between 14 and 879 days. Results of post-radiotherapy genetic analysis did not differ from pre-radiotherapy findings.

Conclusion

Post-radiation CGH appears to be a promising option for prognostic testing if a first biopsy before radiotherapy failed or was not performed. It could be useful to avoid an additional surgical procedure before radiotherapy if vitrectomy or endoresection is planned after radiotherapy.
Vorheriger Artikel Die Häufigkeit der Meibom-Drüsen-Dysfunktion bei PatientInnen mit Beschwerden des Trockenen Auges in einer klinischen Population
Nächster Artikel Visusprognose nach Gamma Knife Radiochirurgie von Aderhautmelanomen
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Metadaten
Titel
Genetic analysis of uveal melanoma by array comparative genomic hybridization before and after radiotherapy
verfasst von
Dr. Werner Wackernagel
Dr.in. Lisa Tarmann
Dr. Christoph Mayer
a.o. Univ. Prof. Dr. Gerald Langmann
Univ. Prof. Dr. Andreas Wedrich
Publikationsdatum
01.12.2013
Verlag
Springer Vienna
Erschienen in
Spektrum der Augenheilkunde / Ausgabe 6/2013
Print ISSN: 0930-4282
Elektronische ISSN: 1613-7523
DOI
https://doi.org/10.1007/s00717-013-0195-0

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