A Rare Presentation of Colon Carcinoma Metastasis Within a Meningioma: A Case Report and Literature Review

Department

Infectious Diseases

Document Type

Article

Publication Title

Cureus

Abstract

Colon carcinoma with brain metastasis is a rare presentation. This presentation is more unusual and unique when the single brain metastatic lesion has two different types of tumors. This rare phenomenon is known as a tumor-to-tumor metastasis. A meningioma usually hosts lung and breast cancers within it. However, colon carcinoma metastasis into meningiomas has rarely been reported. An 86-year-old man presented with neurological symptoms and was found to have a brain mass. The search for primary lesions was negative as the chest, abdomen, and pelvis CT scan was insignificant. When the brain lesion's pathology revealed a composite mass of adenocarcinoma and a meningioma, further investigation with a colonoscopy revealed a colonic mass as the primary metastasis lesion. This unique presentation and pathology emphasize the importance of a comprehensive investigative approach to finding the primary lesions and consideration of such a phenomenon in these lesions.

First Page

e45764

DOI

10.7759/cureus.45764

Volume

15

Issue

9

Publication Date

9-1-2023

PubMed ID

37872930

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