Examples of 'fibrillary fundus':

These histological samples (A, panoramic view; B, zoom view)https://www.researchgate.net › figure › These-histological...
**... with a fibrillary fundus** and the presence of calcifications, without atypia or mitosis. from publication: Recurrent Pituicytoma in a Pediatric Patient: ...

Abstract - The Pan African Medical Journalhttps://panafrican-med-journal.com › ...· Translate this page
Tumor proliferation was associated with **fibrillary fundus** and vascular network with three types of trees. Immunohistochemical examination was identical in ...

The dilution allowed us to observe in greater detail the aspect of the **microgranular-fibrillary fundus**, which corresponds to DNA fragments at different ...

There are examples of 'fibrillary basement membrane', but the articles are from the 1800s.

Examples of 'sparse fibrillary':

Intraoperative neurocytology of primary central nervous ... - NCBIhttps://www.ncbi.nlm.nih.gov › articles › PMC3214458
by S Sharma · 2011 · Cited by 38 — An anaplastic oligodendroglioma typically shows relatively rounded cells, mini-gemistocytic cells, **sparse fibrillary processes**, suggestive of infiltration ...

Electron Microscopy -- Renal Insufficiencyhttps://path.upmc.edu › cases › case78
**Sparse fibrillary material was present in rare tubular basement** membranes and an arteriole, but not in an artery examined ultrastructurally.


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Here's an example of 'fibrillar fundus':

Intramedullary Subependymoma of the Cervical Spinal Cordhttps://www.thieme-connect.com › ejournals › pdf
by EGG Chapa · 2019 — Histologically, we observed groups of cells with mild nuclear pleomorphism embedded in a **dense, thin, glial fibrillar fundus**, and microcystic ...

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Definition of fundus - NCI Dictionary of Cancer Termshttps://www.cancer.gov › dictionaries › cancer-terms › def
(FUN-dus) The part of a hollow organ that is across from, or farthest away from, the organ's opening. Depending on the organ, the fundus may be at the top or bottom of the organ.

I suggest: 'A neoplastic (neoplasm) glial lesion is observed. It has a high grade classification or a high priority with astrocyte differentiation. It shows abundant cellurality on a scarce fibrilary base or background.'
Information explains the serious nature of lesions or tumours to the brain matter or the cranium (skull) and spinal cord areas, as they affect the central nervous system. It also explains how tumours can potentially reach the head and neck area from other parts of the body. Further information explains the ways in which those conditions can be either malignant (cancerous) or benign (not life-threatening).
"Neurolgia is the supportive tissue of the central nervous system, including the network of branched cells in the central nervous system (astrocyte, microglia and oligodentrocytes) and the supporting cells of the peripheral nervous system (Shwann cells and satellite cells), also known as 'glia'."
"More than 150 different brain tumours have been documented, but the two main groups are termed primary and metastatic. Primary brain tumours include tumours that originate from the tissues of the brain's immediate surroundings. Primary tumours are categorized as glial (composed of glial cells) or non-glial (developed on the structure of the brain, including nerves, blood vessels and glands), benign and malignant.
Metastatic tumours can also occur elsewhere in the body. They can migrate to the brain through the bloodstream. They are cancerous and malignant.
'Gliomas' are the most prevalent type of adult tumours. They arise from the supporting cells of the brain, called the 'glia'. These cells are subdivided into astrocytes, ependymal cells and oligodroglial cells (or oligos). Glial tumours include: Astrocytomas, the most common glioma, account for about half of all the primary brain and spinal cord tumours. Astrocytomas debelop from star-shaped cells called astrocytes, part of the supportive tissue of the brain.
'Ependymomas' are derived from a neoplastic transformation of the emendymal cells lining the ventricular system, accounting for 2 -3 % of all brain tumours. Glioblastoma multimforme (GBM) is the most invasive type of glial tumour. Those tumours tend to grow rapidly, spread to other parts and have a poor prognosis."
https://www.aans.org/en/Patients/Neurosurgical-Conditions-an...

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"An electroencephalogram (EEG) is a test recording of brain activity. During the test, small sensors are attached to the scalp to pick up the electrical impulses produced when brain cells send messages to each other. It's a test used to detect problems and abnormalities."
https://www.nhs.uk/conditions/electroencephalogram/

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SP: Un electrocefelapgrama (EEG) es un registro de la actividad cerebral. Durante una prueba, se colocan sensores pequeños en el cuero cabelludo para enregistrar los impulsos o las señales producidos cuando las células cerebrales se envían impulsos o recados entre sí. Las pruebas pueden detectar problemas o anomalidades cerebrales.