What causes Platybasia?

Platybasia is a spinal disease of a malformed relationship between the occipital bone and cervical spine. It may be caused by Paget’s disease. Platybasia is also a feature of Gorlin-Goltz syndrome, commonly known as basal cell nevus syndrome.

Is Platybasia serious?

Platybasia is diagnosed when, on a lateral skull film or saggitally formatted CT, the angle of the line drawn along the plane of the sphenoid sinus and along the clivus is greater than 145 degrees. Platybasia, per se, is not a disease. BI is uncommon but somewhat dangerous.

What are the symptoms of basilar invagination?

Symptoms

• Periods of confusion or conscious awareness that doesn’t seem normal.
• Difficulty swallowing or saying words due to loss of muscle control after damage to the nervous system (dysarthria)
• Dizziness.
• Loss of sensation.
• Pain in the back of the head.
• Loss of the ability to know how joints are positioned.

How do you measure a Platybasia?

This technique involves measuring the angle formed by two lines—one joining the nasion with the center of the pituitary fossa and a second line joining the anterior border of the foramen magnum with the center of the pituitary fossa.

What does Platybasia mean in medical terms?

Platybasia is an abnormality of the base of the skull, literally flattening of the skull base. It may be developmental in origin or due to softening of the skull base bone, allowing it to be pushed upward (see Basilar Invagination ).

How does Platybasia affect the base of the skull?

Platybasia is characterized by abnormal flattening of the skull base as defined as a base of skull angle over 143º. Platybasia alone does not usually cause symptoms unless it is associated with basilar invagination 6. An 80-year-old woman known for a chronic bone disorder with markedly elevated serum alkaline phosphatase.

How is Platybasia related to Paget’s disease?

Platybasia is a spinal disease of a malformed relationship between the occipital bone and cervical spine. It may be caused by Paget’s disease. Platybasia is also a feature of Gorlin-Goltz syndrome, commonly known as basal cell nevus syndrome. Pearce JM (2007). “Platybasia and basilar invagination”.

What is the normal bone angle for Platybasia?

Neurosurgeon y Neurologist. Platybasia (PTB) is known as the skull bone anomaly consisting of the flattening of the base of the skull. It results in the opening of the basal angle of Boogard. The normal value of this angle ranges between 115º and 140º. When this angle is more than 140º, this condition is known as Platybasia.

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