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Journal of Case Reports
Metastatic Colorectal Adenocarcinoma of the Mastoid Bone: A Rare Case Report
Neil Mundi1, Stefan Hamilton1, Bret Wehrli2, Lorne S Parnes1
1Department of Otolaryngology – Head and Neck Surgery and 2Department of Pathology, London Health Sciences Center, London, ON.
Corresponding Author:
Dr. Neil Mundi
Email: neilmundi@gmail.com
Received: 18-MAR-2019 Accepted: 29-JUN-2019 Published Online: 10-JUL-2019
DOI: http://dx.doi.org/10.17659/01.2019.0037
Background: Metastases to the temporal bone are exceedingly rare, representing <0.2% of all head and neck tumors. The most common primary malignancies are from breast, lung, prostate and skin. Given the rarity of temporal bone metastases and paucity of such case reports in the literature, the dissemination of a diagnostic approach is a worthwhile venture. Case Report: Here we describe a patient with known metastatic adenocarcinoma of the descending colon presenting with unilateral aural fullness, hearing loss and ataxia. Radiographic investigations revealed a soft tissue mass within the mastoid bone, and biopsy confirmed metastatic colorectal adenocarcinoma. The patient’s disease progressed over time, causing facial paralysis, and eventually her demise. Conclusion: This unique and uncommon case highlights the importance of thoroughly investigating patients with known malignancy who present with unilateral otologic and vestibular symptoms.
Keywords : Adenocarcinoma, Biopsy, Hearing Loss, Mastoid, Temporal Bone.
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