Gangliocytoma

What it is

From: Orphanet

A rare, mixed neuronal-glial tumor characterized by slow growth and irregular arrangement of neoplastic ganglion cells (large, multipolar dysplastic neurons) within stroma composed of non-neoplastic glial elements. Most commonly it occurs in temporal lobe, but it can be located throughout central nervous system. Clinical manifestations vary depending on the location and include seizures, increased intracranial pressure, cerebellar signs and focal neurologic deficits. Memory disturbances, cranial nerve palsies and psychiatric symptoms have also been reported.

Reported clinical features and what the terms mean

The following findings are associated with this condition in Orphanet. They are not a checklist for diagnosing yourself, and they do not all occur in every affected person. Some are examination, imaging or laboratory findings that cannot be recognised at home.

The frequency labels describe how often a finding was reported among people with the condition in the source. They do not give the chance that a person with that symptom has the condition. Definitions below reproduce HPO terminology; they explain the term, not the likely severity in an individual.

Ganglioneuroma · Very frequent (99-80%)

A benign neoplasm that usually arises from the sympathetic trunk in the mediastinum, representing a tumor of the sympathetic nerve fibers arising from neural crest cells.

Headache · Frequent (79-30%)

Cephalgia, or pain sensed in various parts of the head, not confined to the area of distribution of any nerve.

Hemianopia · Frequent (79-30%)

Partial or complete loss of vision in one half of the visual field of one or both eyes.

Neoplasm of the central nervous system · Frequent (79-30%)

A neoplasm of the central nervous system.

Spinal cord tumor · Frequent (79-30%)

A neoplasm affecting the spinal cord.

Abnormal brainstem morphology · Occasional (29-5%)

An anomaly of the brainstem.

Abnormality of the pituitary gland · Occasional (29-5%)

An anomaly of the pituitary gland.

Accelerated skeletal maturation · Occasional (29-5%)

An abnormally increased rate of skeletal maturation. Accelerated skeletal maturation can be diagnosed on the basis of an estimation of the bone age from radiographs of specific bones in the human body.

Adrenocorticotropic hormone excess · Occasional (29-5%)

Overproduction of adrenocorticotropic hormone (ACTH), which generally leads secondarily to overproduction of cortisol by the adrenal cortex.

Amenorrhea · Occasional (29-5%)

Absence of menses for an interval of time equivalent to a total of more than (or equal to) 3 previous cycles or 6 months.

Decreased female libido · Occasional (29-5%)

Diminished sexual desire in female.

Distal muscle weakness · Occasional (29-5%)

Reduced strength of the musculature of the distal extremities.

Elevated circulating growth hormone concentration · Occasional (29-5%)

Acromegaly is a condition resulting from overproduction of growth hormone by the pituitary gland in persons with closed epiphyses, and consists chiefly in the enlargement of the distal parts of the body. The circumference of the skull increases, the nose becomes broad, the tongue becomes enlarged, the facial features become coarsened, the mandible grows excessively, and the teeth become separated. The fingers and toes grow chiefly in thickness.

Focal-onset seizure · Occasional (29-5%)

A focal-onset seizure is a type of seizure originating within networks limited to one hemisphere. They may be discretely localized or more widely distributed, and may originate in subcortical structures.

Other findings in the same source

From: Orphanet

Additional reported features include Hyperhidrosis (Occasional (29-5%)); Impotence (Occasional (29-5%)); Paresthesia (Occasional (29-5%)); Pituitary null cell adenoma (Occasional (29-5%)); Scoliosis (Occasional (29-5%)); Abnormal prolactin level (Occasional (29-5%)); Abnormal cerebellum morphology (Very rare (<4-1%)); Dementia (Very rare (<4-1%)); Excessive daytime somnolence (Very rare (<4-1%)); Pituitary prolactin cell adenoma (Very rare (<4-1%)). This is a selected summary, not a complete description of the condition.

When it may begin

From: Orphanet

Adolescent; Childhood; Infancy

Frequency and the population described

From: Orphanet

Annual incidence: <1 / 1 000 000; Worldwide; Class only.

Which doctor should you see?

The suggested department for discussing Gangliocytoma is Oncology, with a oncologist and relevant organ specialist as the relevant type of clinician. General physician / Family Medicine; paediatrician for children. Referral depends on symptoms.

Additional services that may be relevant, depending on the findings, include: Relevant organ specialist / Surgical Oncology as indicated.

This is an editorial referral starting point. The appropriate clinic depends on the person’s age, symptoms, previous diagnosis and local services. The first clinician can decide whether another specialty or a team is needed; a department label does not confirm the diagnosis.

How to prepare for an assessment

Bring a short timeline of the main symptoms: when they first appeared, whether they are constant or episodic, what seems to change them, and how they affect daily activities. Include previous reports, discharge summaries, current medicines and supplements, allergies, and any relevant family history. A dated record is more useful than trying to match every feature in an online article.

Ask the clinician what is already established and what remains uncertain. If a test is suggested, ask what question it answers, what its limitations are and how the result would change the next step. The information here is not an instruction to arrange every possible test. In children, bring growth, developmental and school information if it is relevant to the concern.

• Has the exact tumour type been confirmed, and is staging relevant?
• What is the goal of each proposed treatment option?
• How will side effects, daily function and supportive care be addressed?

Treatment discussions and follow-up

The material gathered for this draft does not provide a complete condition-specific treatment pathway for Gangliocytoma. That gap does not mean that treatment is unavailable. A clinician needs to establish the diagnosis and review current guidance before recommending medicines, procedures, rehabilitation or other support.

Before leaving the appointment, clarify the next review date, who will communicate results, and whom to contact if the situation changes. Discuss difficulties with sleep, work, school, mobility, eating or emotional wellbeing when these are relevant. Practical support may require coordination between the treating clinician and other services.

The collected references do not establish a complete prevention or long-term outlook section for this entry. Missing information should not be interpreted as proof that prevention is impossible or that a particular outcome is inevitable. Ask what is known for the exact subtype, stage and personal circumstances, and which uncertainties remain.

When to seek emergency help

Severe breathing difficulty, collapse, new stroke-like symptoms, a seizure that is prolonged or repeated without recovery, uncontrolled major bleeding, or an immediate risk of self-harm require emergency help. In India, call 112 or reach the nearest emergency department. This is a general, non-exhaustive warning list; it is not a condition-specific triage tool.