TY - JOUR SP - 1 N2 - Background: Inhibition of the oncogenic fusion-gene EML4-ALK is a current first-line approach for patients with stage IV non-small cell lung cancer. While FISH was established as the gold standard for identifying these patients, there is accumulating evidence that other methods of detection, i.e., immunohistochemistry and next-generation sequencing (NGS), exist that may be equally successful. However, the concordance of these methods is under investigation. Case presentation: Adding to the current literature, we here report a 56 year old female never-smoker with stage IV lung adenocarcinoma whose biopsy was IHC and FISH inconclusive but positive in NGS. Retroactive profiling of the resection specimen corroborated fusion reads obtained by NGS, FISH-positivity and showed weak ALK-positivity by IHC. Consequently, we diagnosed the case as ALK-positive rendering the patient eligible to crizotinib treatment. Conclusions: With IHC on biopsy material only, this case would have been overlooked withholding effective therapy. AV - public SN - 1746-1596 TI - Next-generation sequencing facilitates detection of the classic E13-A20 EML4-ALK fusion in an ALK-FISH/IHC inconclusive biopsy of a stage IV lung cancer patient: a case report Y1 - 2016/// JF - Diagnostic Pathology ID - heidok22203 VL - 11 CY - London IS - 133 UR - https://archiv.ub.uni-heidelberg.de/volltextserver/22203/ A1 - Volckmar, Anna-Lena A1 - Endris, Volker A1 - Bozorgmehr, Farastuk A1 - Lier, Clemens A1 - Porcel, Carlota A1 - Kirchner, Martina A1 - Leichsenring, Jonas A1 - Penzel, Roland A1 - Thomas, Michael A1 - Schirmacher, Peter A1 - Warth, Arne A1 - Stenzinger, Albrecht EP - 6 PB - BioMed Central ER -