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Brain Metastases With Malignant Peritoneal Mesothelioma: Never Reported Before
Darshan Lal1, Merissa Misiura2, Waqas Adeel2
1Hematology and Medical Oncology, Lehigh Valley Health Network, Allentown, USA.
Abstract:
Malignant mesothelioma is a very rare diagnosis. Malignant mesotheliomas arise from surface linings of pleura, peritoneal cavity, or tunica vaginalis and pericardium with pleural malignant mesotheliomas being the most common. The incidence of brain metastases has been very low with malignant pleural mesotheliomas, but to date, there have not been any cases reported of brain metastasis with malignant peritoneal mesotheliomas. We present a patient diagnosed with malignant peritoneal mesothelioma and was successfully treated with immunotherapy for over two years but later presented with brain metastases. Although the patient had a surgical resection followed by brain radiation, he died three months after his diagnosis of brain metastases. Immunotherapy has revolutionized the treatment of malignant mesothelioma, and patients are living longer than before. We present this patient to increase awareness of brain metastases with malignant peritoneal mesothelioma. This case also highlights that we need to investigate different treatment options for brain metastases in patients with malignant mesothelioma as conventional treatment options like surgical resection and brain radiation are not very effective.
Insights
Brain metastases are a rare complication of malignant peritoneal mesothelioma. This case highlights the need for new treatments as conventional therapies were ineffective, despite initial immunotherapy success.
Area of Science:
- Oncology
- Pathology
Background:
- Malignant mesothelioma is a rare cancer affecting serous membranes.
- Malignant pleural mesothelioma is most common; brain metastases are rare.
- Brain metastases from malignant peritoneal mesothelioma have not been previously reported.
Observation:
- A patient with malignant peritoneal mesothelioma received over two years of successful immunotherapy.
- The patient later developed brain metastases.
- Despite surgical resection and radiation, the patient died three months post-metastasis diagnosis.
Findings:
- This case represents the first reported instance of brain metastasis in malignant peritoneal mesothelioma.
- Immunotherapy extended survival but did not prevent late-stage metastasis.
- Conventional treatments for brain metastases were insufficient.
Implications:
- Increased awareness of brain metastasis risk in malignant peritoneal mesothelioma is crucial.
- Novel therapeutic strategies for brain metastases in mesothelioma patients are urgently needed.
- Further research into the mechanisms and management of mesothelioma brain metastases is warranted.
