There are many speculations as to what is the main cause of<unk> . A combination of weakness of the triceps surae muscle, peripheral neuropathy, and irregular postural movements are the leading theories thus far. Diabetes, spinal root or spinal cord lesions, and traumas or injuries to the motor cortex of the brain can also cause similar symptoms that are seen in patients with<unk> . However, none of these have been proven definite. Many scientists also believe that this is a conversion disorder, in which patients exhibit symptoms without any neurological cause. Peripheral neuropathy Damage to the peripheral nerves coming from the legs to the somatosensory area is the leading candidate for the cause of<unk> . These damaged nerves prevent feedback for stabilization of posture for patients with<unk> . This causes a disturbance in postural movements, such as a swaying around the legs and hip joints. This swaying may be seen only when a patient in standing still, and may disappear before walking, indicating that these patients exhibit<unk>  without abasia. This impairment of sensation is not always required for the sensation to develop. However, impairment often worsens<unk> . Weakness of the triceps surae muscle Weakness of the triceps surae muscle has been seen in many patients who have been diagnosed with<unk> . This weakness can be caused by a myopathy to that muscle group. The bilateral triceps surae muscle, made up of the gastrocnemius and the soleus, is essential to maintain a straight posture while standing. This indicates that weakness to this muscle is the cause of the swaying and impaired posture in patients with<unk> . This weakness is seen regardless of whether somatosensory feedback from the legs is impaired, suggesting it is one of the main causes of<unk>  without abasia. Diabetes Many patients who suffer from diabetes can have damage to a single nerve or groups of nerves in the body. Some patients experience damage to the nerves coming from the somatosensory area controlling postural stability, which can cause symptoms similar to those seen in patients with<unk> . These patients exhibit trouble standing and hip swaying. This damage can be caused by a wide array of things, such as high blood glucose levels, or decreased blood flow to the brain. Spinal cord/root lesions Lesions in the spinal cord or the spinal root can cause damage to a nerve or nerve root. Depending on where the abnormality is in a patient they can experience a wide range of symptoms, including those that are found in patients with<unk> . It has been seen that patients with spinal atrophy who have<unk>  without abasia have neither sensory disturbances of the lower limbs or weakness in the hip extensor flexor muscles. This helps to indicate that one of the main causes of<unk>  without abasia is weakness in the triceps surae muscle. Other causes Many other causes for<unk>  have been reported, such as temporal hypoperfusion in the left hemisphere and posterior cingulate infarction. However, there have only been one or two cases in which these causes have been reported. There has also been one case that reported a patient showing a hemorrhage in the right thalamo-mesencephalic junction. This region involves important structures for the control of postural stability, motor control, ocular movements and vestibulo-ocular integration. This region of the brain is not yet well understood and according to current knowledge, this is the first reported case with the simultaneous combination of<unk> , pretectal syndrome, and asymmetrical asterixis.
Astasis
Vitreous bulge
Band keratopathy
Macular hole
Glial scar
Otosclerosis
Optic papillitis
Bullous keratopathy