Diseases

Pseudoxanthoma elasticum- forme fruste

An inherited systemic disease of connective tissue involving progressive calcification and degeneration of elastic fibers throughout the body, including the skin, eyes and cardiovascular system.

Psittacosis

Psittacosis is an infection caused by Chlamydia psittaci, a type of bacteria found in the droppings of birds. Birds spread the infection to humans.

Pterygium of the conjunctiva

A very rare disorder where an abnormal membrane of tissue grows from the conjunctiva of the eye. The membrane can cover a part of the eye and impair vision .

Pterygium syndrome antecubital

A very rare malformation characterized by a web of tissue that develops at the elbow and prevents the arm from extending fully.

Pterygium syndrome X-linked

A rare disorder involving skin, bone and muscle abnormalities with webbing in parts of the body such as the neck, elbows and back of legs.

Ptosis coloboma trigonocephaly

A very rare syndrome characterized mainly by droopy eyelids, coloboma and triogoncephaly as well as other variable features.

Ptosis strabismus diastasis

A rare genetic disorder characterized by drooping eyelids, hip problems, undescended testes and developmental delay.

Pulmonar arterioveinous aneurysm

A very rare disorder where there is an abnormal opening between a pulmonary artery and vein which can affect blood oxygenation.

Pulmonary Arterial Hypertension

Pulmonary arterial hypertension (PAH) is a rare, progressive disorder characterized by high blood pressure (hypertension) in the arteries of the lungs (pulmonary artery) for no apparent reason. The pulmonary arteries are the blood vessels that carry blood from the right side of the heart through the lungs.The exact cause of PAH is unknown and although treatable, there is no known cure for the disease. PAH usually affects women between the ages of 30-60.

Pulmonary arteriovenous malformation

Pulmonary arteriovenous malformations are caused by abnormal communications between pulmonary arteries and pulmonary veins, which are most commonly congenital in nature. Although these lesions are quite uncommon, they are an important part of the differential diagnosis of common pulmonary problems such as hypoxemia and pulmonary nodules. Since their first description at autopsy in 1897 (1), these abnormal communications have been given various names including pulmonary arteriovenous fistulae, pulmonary arteriovenous aneurysms, hemangiomas of the lung, cavernous angiomas of the lung, pulmonary telangiectases, and pulmonary arteriovenous malformations (2). The term "pulmonary arteriovenous malformations" (PAVM) will be used in this review to describe these lesions.

Pulmonary artery agenesis

A rare defect where the pulmonary artery or a portion of it fails to develop. The pulmonary artery has two branches, each of which goes to a different lung. The affected lung tends to be smaller and the bronchial arteries that supply it tend to be enlarged.

Pulmonary artery- isolated unilateral absence of (Isolated UAPA)

A very rare malformation where either the right or left pulmonary artery is missing and there are no other heart abnormalities. The severity of the condition is variable with some infants being severely affected while others are asymptomatic for decades.

Pulmonary atresia with ventricular septal defect

A congenital heart defect where the pulmonary artery is closed off so that blood is unable to flow out to the lungs via the pulmonary artery. An abnormal opening between the two sides of the heart also allow blood to flow between the two heart chambers. The severity of symptoms depends on the degree of abnormality. Symptoms may be evident at birth or later.

Pulmonary branches stenosis

A very rare disorder where the pulmonary branches are narrower than normal. The severity of symptoms depends on the degree of narrowing.

Pulmonary cystic lymphangiectasis

A rare disorder characterized by the presence of numerous small lung cysts at birthinfant born with lung cysts which severely affects breathing and blood pressure and generally results in infant death.