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A Meningioma With Extensive Peritumoral Edema Mimicking Metastatic Brain Tumor: A Case Report
Princi D Demaisip1, Dan Neftalie Juangco2, Nic Junn C Tambal3
1Department of Neurosciences, East Avenue Medical Center, Quezon City, Philippines. neurosciences@eamc.doh.gov.ph.
Abstract:
Meningioma is the most common brain tumor among all histologically reported malignant and non-malignant tumors of the central nervous system. Angiomatous meningioma is one of the subtypes of meningioma that is rarely reported. In this paper, we present a case of a 67-year-old female patient who sought consultation due to seizure, cognitive decline, and parkinsonism. Contrast-enhanced MRI showed a well-defined tumor in the left frontal lobe convexity with extensive perilesional edema. A tumor excision was done and histopathology studies revealed an angiomatous meningioma subtype. This case is reportable because angiomatous meningioma is a recognized rare entity. It is important to share this entity with other medical professionals and start to consider this condition in differential diagnosis when diagnosing a patient with an intracranial mass with an extensive peritumoral edema. Furthermore, the patient's unusual presentation of parkinsonian features and its occurrence with colorectal cancer history suggest a possible association between these conditions.
Insights
This case report highlights angiomatous meningioma, a rare brain tumor subtype. Early consideration of this rare entity is crucial for diagnosing intracranial masses with extensive edema, especially with unusual neurological symptoms.
Area of Science:
- Neurology
- Neurosurgery
- Oncology
Background:
- Meningioma is the most common central nervous system tumor.
- Angiomatous meningioma represents a rare subtype, infrequently documented.
- Intracranial masses often present with varied neurological deficits.
Observation:
- A 67-year-old female presented with seizures, cognitive decline, and parkinsonism.
- Contrast-enhanced MRI revealed a left frontal lobe convexity tumor with significant perilesional edema.
- Histopathology confirmed the diagnosis of angiomatous meningioma.
Findings:
- Angiomatous meningioma, a rare subtype, was diagnosed in this patient.
- The tumor presented with extensive peritumoral edema, a key diagnostic consideration.
- The patient's parkinsonian features and history of colorectal cancer are notable.
Implications:
- This case underscores the importance of including rare meningioma subtypes in differential diagnoses.
- Recognizing angiomatous meningioma aids in timely and accurate diagnosis of intracranial tumors.
- The co-occurrence with colorectal cancer warrants further investigation into potential associations.
