Metastasis of Colon Cancer in the External Auditory Meatus
A 68-year-old man came to our ENT emergency room for investigation of a painful swelling of his right ear. He had a history of metastatic adenocarcinoma of the right transverse colon. He was receiving palliative Folfirinox chemotherapy. Clinical examination of the ear revealed a fluctuated, reddened, painful neoplasm at the entrance of the right external auditory meatus, with no other unusual findings. Incision and drainage of the mass ensued. A small amount of putrid matter was secreted. In view of the patient’s history of cancer, we decided to perform a biopsy. Examination of the sample confirmed our suspicion that the mass was a metastasis of the known colon cancer. The superinfection healed within a week after local antibiotic treatment with ciprofloxacin and aureomycin (Figure a). Computed tomography of the petrosal bone (Figure b) showed an 8-mm mass with little uptake of contrast medium and no bony infiltration. The palliative systemic Folfirinox treatment was continued.Distant metastases of colon cancer of this nature (ear) are extremely rare (2%). Biopsy to exclude distant metastasis should always be considered in the event of unclear findings in the head and neck.
Jamal Huseynov, PD Dr. med. Christian Mozet, PD Dr. med. Milos Fischer, Schwarzwald-Baar Klinikum Villingen-Schwenningen GmbH, HNO-Heilkunde,
Kopf- und Halschirurgie, firstname.lastname@example.org
Conflict of interest statement: The authors declare that no conflict of interest exists.
Translated from the original German by David Roseveare.
Cite this as: Huseynov J, Mozet C, Fischer M: Metastasis of colon cancer in the external auditory meatus. Dtsch Arztebl Int 2019; 116: 270. DOI: 10.3238/arztebl.2019.0270