Tumour-to-tumour metastasis: breast carcinoma to an olfactory neuroblastoma

Tumour-to-tumour metastasis is a rare phenomenon. It occurs when a primary tumour is a recipient of a separate tumour within the same individual. We present a case of a 66-year-old woman with known breast cancer who presented with one-sided nasal symptoms. Examination and imaging revealed a unilater...

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Bibliographic Details
Published in:Annals of the Royal College of Surgeons of England 2020-07, Vol.102 (6), p.e1-e121
Main Authors: Bashyam, A, Grammatopoulou, V, Crook, T, Di Palma, S, Sunkaraneni, V S
Format: Article
Language:English
Subjects:
Breast cancer
Cancer therapies
Chemotherapy
Kidney cancer
Lymphatic system
Magnetic resonance imaging
Metastasis
Neck
Neuroblastoma
Nose
Online Case Report
Patients
Sinuses
Tomography
Tumors
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Summary:Tumour-to-tumour metastasis is a rare phenomenon. It occurs when a primary tumour is a recipient of a separate tumour within the same individual. We present a case of a 66-year-old woman with known breast cancer who presented with one-sided nasal symptoms. Examination and imaging revealed a unilateral polyp arising from the skull base. She underwent endoscopic polypectomy with the histology demonstrating tumour-to-tumour metastasis from a breast carcinoma to an olfactory neuroblastoma, a rare sinonasal tumour. Clinicians should be cautious of distant metastases in any patient presenting with head and neck symptoms and a known primary tumour. This is the first documented case of this type.
ISSN:0035-8843
1478-7083
DOI:10.1308/rcsann.2020.0038