Phylogenetic Disorders of Skulls

Introduction
1 :The evolutionary history of a kind of organism.
2 : the evolution of a genetically related group of organisms as distinguished from the development of the individual organism called phylogenesis. — compare ontogeny.

Craniosynostosis
Craniosynostosis is a congenital deformity of the infant skull that occurs when the fibrous joints between the bones of the skull (called cranial sutures) close prematurely. Due to this closure, the baby develops an abnormally shaped skull because the bones do not expand normally with the growth of the brain.

Cranial Base Disorder
The cranial base is a small, yet highly complex area at the bottom portion of the skull where every nerve that connects the brain with the rest of the body must move through. If you have a cranial base disorder, you may experience neurological problems such as headaches, facial pain, blurred vision, dizziness, or seizures. These symptoms tend to occur when the tumor has grown large enough to press against nerves or the brain

Penn Medicine’s Cranial Base Surgery team specializes in evaluating and treating cranial base disorders such as:
Acromegaly
Cerebrospinal fluid (CSF) leaks
Cushing’s disease
Facial nerve disorders
Meningioma
Pituitary tumors

Paget's disease of bone interferes with your body's normal recycling process, in which new bone tissue gradually replaces old bone tissue. Over time, the disease can cause affected bones to become fragile and misshapen. Paget's disease of bone most commonly occurs in the pelvis, skull, spine and legs
Paget's disease

X – Ray of pegets disease

Gorham’s disease
Gorham’s disease is a rare condition that leads your bone mass to be replaced by other kinds of tissue. Gorham’s disease can cause bone loss in your skull, leading to a visible dent in some cases.
Congenital skull indentation
Sometimes babies are born with an indentation in their skull. These indentations can be caused by the birth process or by the way the baby was positioned in their mother’s womb. If the bones in a baby’s skull fuse prematurely, the baby’s head may appear dented or misshapen — a condition called craniosynostosis.

If you have Paget’s disease of bone, Gorham’s disease, or another rare bone disease that’s causing your skull dent, your doctor may prescribe bisphosphonates — drugs that keep your body from absorbing your bone tissue. Alendronate (Fosamax) and ibandronate (Boniva) are examples of these drugs.
Some people may need bone grafts to surgically correct the loss of bone mass in their skull.
Treatment for bone diseases

Treatment for babies with skull dents When a baby is born with a head dent or skull abnormality, the symptoms will usually resolveTrusted Source on their own within 6 months.
In some cases, helmet therapy may be recommended. There are also cases when surgery is required to correct the skull shape and make sure that the baby’s brain has enough room to develop as it grows.

Some of the most common types of craniofacial anomalies include the following: Cleft lip and/or cleft palate. A separation that happens in the lip or the palate (roof of the mouth), or both. Cleft lip and cleft palate are the most common congenital craniofacial anomalies seen at birth.

Trauma Car accidents, falls, or severe blows to the head can cause what’s called a depressed fracture in your skull. A depressed fracture means that a part of your skull has been crushed in toward your brain. This kind of injury requires emergency medical treatment.
Any significant head injury should be immediately evaluated by a doctor.
Depressed Fracture