Unusual growth pattern of a meningioma

Hiroshi Kashimura1, Tomohiko Mase, Kuniaki Ogasawara

  • 1Department of Neurosurgery, Iwate Prefectural Chubu Hospital, Kitakami, Iwate, Japan.

Abstract

Insights

This case study details an aggressive rhabdoid meningioma with unusual growth into the subarachnoid space. The tumor

Area of Science:

  • Neuro-oncology
  • Pathology

Background:

  • Rhabdoid meningioma is characterized by high mitotic activity and anaplasia.
  • These tumors often exhibit aggressive growth patterns.

Observation:

  • A 72-year-old woman presented with headache and was found to have a dural-based mass.
  • Imaging revealed a tumor extending into the sylvian cistern and filling cortical sulci.

Findings:

  • Histological examination confirmed the diagnosis of rhabdoid meningioma.
  • The tumor displayed a rare growth pattern involving extensive subarachnoid space infiltration.

Implications:

  • This unique presentation highlights the aggressive potential of rhabdoid meningiomas.
  • Understanding such growth patterns is crucial for surgical planning and patient management.

Related Concept Videos

Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...
Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...
Cranial and Spinal Meninges01:19

Cranial and Spinal Meninges

The cranial and spinal meninges are complex protective structures surrounding the central nervous system (CNS), consisting of the brain and spinal cord. These meninges consist of the dura mater, the arachnoid mater, and the pia mater. They protect the CNS, provide structural support, and aid in circulating cerebrospinal fluid (CSF).
Cranial Meninges
These meningeal layers cover the cranium. The dura mater is the outermost layer of cranial meninges. It is a thick and durable membrane of dense...