obsolete third ventricle chordoid glioma

Overview of Obsolete Third Ventricle Chordoid Glioma

Obsolete third ventricle chordoid glioma is a rare and low-grade tumor that arises from the anterior wall or roof of the third ventricle. It is characterized by a chordoid architecture and myxoid background, making it distinct from other types of brain tumors.

Key Features:

• Location: The tumor typically occurs in the third ventricle, which is a small cavity located between the two hemispheres of the brain.
• Histology: Histological examination reveals a chordoid architecture made up of ependymal cells, which are similar to those found in the subcommissural organ during embryonic life.
• Growth Rate: The tumor grows slowly and is more common in females.
• Age Group: It predominantly affects adults.

Comparison with Other Tumors:

• Obsolete third ventricle chordoid glioma should not be confused with choroid plexus tumors, which occur most frequently in young children and are typically located in the lateral or fourth ventricles.
• It is also distinct from central neurocytomas, cerebellar liponeurocytomas, atypical teratoid/rhabdoid tumors, and other types of brain tumors.

References:

• [1] Chordoid glioma of third ventricle: a report of two new cases, with further evidence supporting an ependymal differentiation, and review of the literature. (Context 4)
• [6] Chordoid gliomas are usually well-demarcated on an MRI with cystic components in about a quarter of cases [150]. (Context 6)
• [13] A chordoid glioma is a rare low-grade tumor that arises from the anterior wall or roof of the third ventricle. It is postulated that this tumor originates from the ependymal cells of lamina terminalis ().These slowly growing tumors are more common in females and are predominantly seen in the adult population. (Context 13)
• [15] A chordoid glioma is a rare low-grade tumor that arises from the anterior wall or roof of the third ventricle. It is postulated that this tumor originates from the ependymal cells of lamina terminalis ().These slowly growing tumors are more common in females and are predominantly seen in the adult population. (Context 15)

Diagnostic Tests for Chordoid Glioma of the Third Ventricle

Chordoid glioma of the third ventricle is a rare and unusual tumor that requires accurate diagnosis to determine the best course of treatment. The following diagnostic tests are commonly used to evaluate this condition:

• Magnetic Resonance Imaging (MRI): MRI with gadolinium is considered the best imaging diagnostic tool for evaluating chordoid gliomas [11][14]. This test can help identify the location, size, and characteristics of the tumor.
• Computed Tomography (CT) Scan: A CT scan may also be used to evaluate the tumor, although it is not as sensitive as MRI in detecting chordoid glioma [7].
• Histology and Immunohistochemical Analysis: A biopsy of the tumor tissue can be examined under a microscope to confirm the diagnosis of chordoid glioma. Immunohistochemical analysis can also help identify specific markers that are characteristic of this type of tumor, such as CD34 and TTF-1 [5][9].

Key Features of Diagnostic Tests

• MRI with gadolinium is the best imaging diagnostic tool for evaluating chordoid gliomas.
• Chordoid gliomas typically appear as well-circumscribed, round or oval masses in the third ventricle on MRI.
• Histology and immunohistochemical analysis can confirm the diagnosis of chordoid glioma and identify specific markers associated with this type of tumor.

References

[1] Am. J. Surg. Pathol., 26 (10) (2002), pp. 1330-1342 [2] by ND Hung · 2021 · Cited by 3 — Chordoid gliomas are typically observed as solid masses within the anterior segment of the third ventricle, characterized by homogenous and vivid enhancement. [5] by AK Gupta · 2017 — Diagnosis of chordoid glioma was confirmed by histology and immunohistochemical analysis of resected tumor. Recurrence of chordoid glioma was reported on MRI ... [9] by BA Morais · 2015 · Cited by 33 — Magnetic resonance imaging (MRI) showed a well-defined lesion adjacent to the floor of the third ventricle, with little surrounding edema. The initial diagnosis ... [11] by K Suetens · Cited by 8 — A chordoid glioma appears as a well-circumscribed, round or oval mass in the third ventricle on MRI. [14] The best imaging diagnostic tool for evaluation of chordoid gliomas is magnetic resonance imaging (MRI) of the brain with gadolinium. Typically, these tumors are well circumscribed, round or oval in shape, with T2 images showing iso- to hyperintense third-ventricle masses with avid homogenous enhancement ( 2 ) (Figure 1 ) .