Summary: | Carsten Nieder1,2, Rolf E. Steen3 and Astrid Dalhaug21Medical Department, Division of Oncology, Nordlandssykehuset HF, Bodø, Norway. 2Faculty of Medicine, University of Northern Norway, Tromsø, Norway. 3Department of Pathology, Nordlandssykehuset HF, Bodø, Norway.Abstract The authors describe a diagnostically challenging case where a patient with previous squamous cell carcinoma of the tonsil developed a putative second primary squamous cell carcinoma in the lung (stage IV with lung and bone metastases). During palliative chemotherapy several episodes of severe infection occurred, eventually resulting in abscess formation in the hip and brain. The dilemma of distinguishing between metastasis and abscess and the therapeutic implications are discussed.
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