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Review
. 2020 Nov;33(6):e14236.
doi: 10.1111/dth.14236. Epub 2020 Sep 15.

Collision tumors: A review of their types, pathogenesis, and diagnostic challenges

Camille A Bulte  1 , Karl M Hoegler  1 , Amor Khachemoune  2   3
Affiliations
Review

Collision tumors: A review of their types, pathogenesis, and diagnostic challenges

Camille A Bulte et al. Dermatol Ther. 2020 Nov.

Abstract

A collision tumor is a neoplastic lesion comprised of two or more distinct cell populations that maintain distinct borders. Collision tumors, which are rare but well documented, can be composed of two benign tumors, a benign and malignant tumor, and two malignant tumors. Although case reports and reviews on specific types of collision tumors exist, a cohesive source discussing these tumors is lacking. We critically reviewed the literature by analyzing case reports and retrospective studies in order to evaluate the following regarding collision tumors: definitions, types, pathogenesis, diagnosis, and management. Reports of these tumors are infrequent but not insignificant, and accurate classification and diagnosis will lead to better patient outcomes.

Keywords: collision tumor; combined tumor.

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References

REFERENCES

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