A tumor-to-tumor metastasis inside a meningioma is a rare phenomenon. Malignant
neoplasms of the breast and lung are the most common primary tumors. Other sites of origin …

Methods A literature search was performed in Medline and PubMed databases. We used the
terms “metastasis in meningioma”,“meningioma metastasis”,“cranial base meningioma” and …

Post-surgery recurrence of meningiomas with multiple extracranial metastases is rare.
Currently, information on extracranial metastases is limited, and no clear predictors and …

Tumor-to-tumor metastasis is a rare event which it is specifically up to pathologists to bring to
light correctly. The histological identification of such tumor-to-tumor cases is simple when the …

Introduction A tumor-to-tumor metastasis (TTM) is a rare metastatic process where a primary
malignant tumor metastasizes to another tumor, most commonly a benign tumor such as a …

目的探讨术前MRI 特征能否区分脑膜瘤孕酮受体(progesterone receptor, PR) 的表达状态,
为PR 表达阳性的脑膜瘤提供术前预测依据. 材料与方法回顾性分析2020 年6 月至2021 年12 …

Tumor-to-meningioma metastasis (TTMM) is an uncommon phenomenon, in which a
primary malignant tumor metastasizes to a recipient preexisting meningioma. Herein, the …

Introduction Exogenous and endogenous sex hormones, especially Progesterone agonists,
may be causally linked to meningioma progression. Cessation of treatment leads to …

Tumor-to-tumor metastasis (TTM) is defined as the hematogenous metastasis within a
primary host tumor from a donor neoplasm. Since there is insufficient evidence regarding the …

Background There have been many reports of tumor-to-tumor metastasis, in which cancer
metastasizes directly into meningiomas. However, metastasis infiltrating tumors in which …