J Korean Med Sci.  2000 Oct;15(5):593-597. 10.3346/jkms.2000.15.5.593.

Metastatic renal cell carcinoma in a meningioma: a case report

• Han HS
• Kim EY
• Han JY
• Kim YB
• Hwang TS
• Chu YC

• KMID: 965885
• DOI: http://doi.org/10.3346/jkms.2000.15.5.593

Abstract

Tumor-to-tumor metastasis is rare. We report a case of metastatic renal cell carcinoma in meningioma. A 67-year-old woman presented a two-week history of motor dysphagia and decreased short-term memory. She had undergone a left radical nephrectomy for a renal cell carcinoma 7 years ago, and had not received any adjuvant therapy. MRI disclosed a 3.0 x 3.0 x 3.0-cm sized round tentorial-based extraaxial mass with peritumoral edema in the left posterior temporal lobe. During operation, the tumor was found to be an encapsulated mass firmly attached to the tentorium. Histologically, the tumor was a meningotheliomatous meningioma extensively infiltrated by metastatic renal cell carcinoma, accompanying widespread coagulative necrosis. Immunohistochemical staining for cytokeratin revealed strong positivity only in the renal cell carcinoma component. The patient's postoperative course was uneventful. Post-operative radiation therapy was applied to the whole brain. Three months after operation, the patient developed right hemiparesis and dysphagia. Brain MRI at that time did not reveal recurrence or any other causative lesions, although the whole body scan disclosed uptake at the second lumbar vertebra and rib. The patient refused further treatment.

Keyword

Meningioma; Neoplasms Metastasis; Carcinoma, Renal Cell

MeSH Terms

Aged
Carcinoma, Renal Cell/secondary*
Carcinoma, Renal Cell/chemistry
Case Report
Female
Human
Keratin/analysis
Kidney Neoplasms/secondary*
Kidney Neoplasms/chemistry
Magnetic Resonance Imaging
Meningeal Neoplasms/pathology*
Meningioma/pathology*