Death, which is often from pneumonia, usually occurs 1 to 3 years after the start of the disorder.About twenty-five percent of patients with PBP eventually develop the widespread symptoms common to ALS. Cause
The cause of PBP is unknown. One form of PBP is found to occur within patients that have a CuZn-superoxide dismutase (SOD1) mutation. Progressive bulbar palsy patients that have this mutation are classified with FALS patients, Familial ALS (FALS) accounts for about 5%-10% of all ALS cases and is caused by genetic factors. Within these, about 20–25% are linked to the SOD1 mutation. It is not currently known if and how the decreased SOD1 activity contributes to Progressive Bulbar Palsy or FALS, and studies are being done in patients and transgenic mice to help further understand the impact of this gene on the disease.A case study was done on a 42-year-old woman who complained of muscle weakness 10 months prior to admission in the hospital. Upon neurological examination, the patient showed muscle atrophy, fasciculation in all limbs and decreased deep tendon reflexes. The patient’s older brother, father, and paternal uncle had previously all died of ALS or an ALS type syndrome. The patient developed progressive bulbar palsy, became dependent on a respirator, and had two episodes of cardiac arrest. The patient died from pneumonia two years after the onset of the disease. After studying the patient, it was found that the patient had a two base pair deletion in the 126th codon in exon 5 of the SOD1 gene.
Encephalocraniocutaneous lipomatosis (ECCL), is a rare condition primarily affecting the brain, eyes, and skin of the head and face. It is characterized by unilateral subcutaneous and intracranial lipomas, alopecia, unilateral porencephalic cysts, epibulbar choristoma and other ophthalmic abnormalities. It was named after Haberland and Perou who first described it. Signs and Symptoms
Eighty to ninety percent of those with encephalocraniocutaneous lipomatosis are  unable to produce and keep fat tissue and have multiple lipomas. Other types of growths, including jaw tumours, may also occur.Approximately two thirds of individuals with Encephalocraniocutaneous lipomatosis have intracranial and/or intraspinal lipomas. They also have an increased risk of developing a form of brain cancer known as a glioma. Other neurological issues that can occur include seizures, spasticity and variable intellectual disability. However, approximately one third of effected individuals have typical intelligence.The most common ocular abnormality in encephalocraniocutaneous lipomatosis is a form of benign growth called a choristoma which can occur in one or both eyes. These may effect vision. Other ocular symptoms include  abnormally small eyes, small pupils, iris hypoplasia, sclerocornea, hypertrophic conjunctivae, an absent macular reflex and anterior chamber anomalies. There may be eyelid colobomas and short or abnormal palpebral fissures. Skin tags often grow around the eyelids. Cause
History
This condition was first described in 1970. See also
Nevus psiloliparus

References


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