Detection of collision metastases

Ane Christine Holm, Jens Ravn Eriksen, Susanne Eiholm, Anne Marie Kanstrup Fiehn


Cancer is a cause of high morbidity and mortality. It is not uncommon for a patient to have more than one primary tumour. This review summarises the knowledge of collision tumours which are defined as two adjacent neoplasms in the same organ, while a collision metastasis is the rare occurrence of two different primary cancers metastasising to the same anatomical site. Identification of collision metastasis is a diagnostic challenge and relies on histopathological examination. As it might have profound impact on prognosis and treatment decisions, it is important to create awareness among both pathologists and clinicians of this phenomenon.

Bidragets oversatte titelNot Available
TidsskriftUgeskrift for Laeger
Udgave nummer23
StatusUdgivet - 5 jun. 2023


  • Humans
  • Neoplasms, Multiple Primary/diagnosis


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