Question 1

What is Perlman syndrome?

Accepted Answer

Perlman syndrome is a rare condition that is usually seen at birth. It is known for several key features including an excess of amniotic fluid during pregnancy (polyhydramnios), unusually large size at birth (neonatal macrosomia), and distinctive facial features. Additionally, children with this condition may develop tumors in both kidneys, known as renal hamartomas, which may occur with or without a form of kidney abnormality called nephroblastomatosis.

Another noted feature of Perlman syndrome is the enlargement of the clusters of hormone-producing cells in the pancreas (hypertrophy of the islets of Langerhans). These combined characteristics help healthcare providers recognize the condition. The information provided here is based on established definitions and genetic references for Perlman syndrome.

Question 2

What are the symptoms of Perlman syndrome?

Accepted Answer

People with Perlman syndrome may show signs such as a large amount of amniotic fluid during pregnancy, larger than average size at birth, and unusual facial features. They may also have kidney tumors (hamartomas) that can occur with or without nephroblastomatosis. In addition, there can be an enlargement of the islets of Langerhans in the pancreas.

Question 3

What causes Perlman syndrome?

Accepted Answer

Perlman syndrome is linked to changes in the DIS3L2 gene. This genetic factor plays a role in the development of the condition and is important for understanding how these diverse features occur. Research into the genetics of Perlman syndrome continues to improve the understanding of its causes. Associated genes include DIS3L2.

Question 4

How is Perlman syndrome inherited?

Accepted Answer

Perlman syndrome follows an autosomal recessive inheritance pattern. This means a child must inherit a copy of the altered gene from both parents to develop the condition. Parents who each carry one copy typically do not show symptoms.

Question 5

How rare is Perlman syndrome?

Accepted Answer

Perlman syndrome is classified as very rare. The estimated prevalence is approximately <1 in 1,000,000. Because rare disease data can be limited, actual numbers may differ from published estimates.

Question 6

How is Perlman syndrome diagnosed?

Accepted Answer

Information about diagnosis is currently limited for this condition.

Question 7

Are there treatments for Perlman syndrome?

Accepted Answer

Information about treatment is currently limited for this condition.

Question 8

What complications can arise from Perlman syndrome?

Accepted Answer

Children with Perlman syndrome may develop kidney tumors called renal hamartomas. These tumors can occur with or without nephroblastomatosis, which is a kidney abnormality. It's important for families to work closely with healthcare providers to monitor any potential complications.

Question 9

How does Perlman syndrome affect daily life for children?

Accepted Answer

Children with Perlman syndrome may face challenges due to their larger size at birth and any associated health issues, such as kidney tumors. Daily life may involve regular check-ups and monitoring for any symptoms. Support from family and healthcare providers can help manage these challenges.

Question 10

What is the life expectancy for someone with Perlman syndrome?

Accepted Answer

Currently, there is limited information about the life expectancy of individuals with Perlman syndrome. The presence of kidney tumors and other health issues can affect overall health. Families should discuss specific concerns with healthcare providers to get the best guidance.

Question 11

Are there specialists that should be involved in the care of someone with Perlman syndrome?

Accepted Answer

Yes, children with Perlman syndrome may benefit from a team of specialists. This can include pediatricians, nephrologists for kidney health, and endocrinologists for pancreatic issues. Working with a team can help ensure comprehensive care for all aspects of the condition.

Organ System	Phenotype Count	Example Features
Head and neck	8	Tented upper lip vermilion, Everted upper lip vermilion, Long upper lip
Brain and nerves	6	Global developmental delay, Depressed nasal bridge, Intellectual disability
Kidneys and urinary system	4	Renal hamartoma, Nephrogenic rest, Nephroblastomatosis
Digestive system	4	Hypoplasia of the abdominal wall musculature, Pancreatic islet-cell hyperplasia, Ascites
Heart and blood vessels	2	Interrupted aortic arch, Abnormality of the cardiovascular system
Growth and development	2	Growth abnormality, Tall stature
Pregnancy and birth	1	Congenital diaphragmatic hernia
Muscles	1	Low muscle tone (hypotonia)
Eyes	1	Ptosis
Bones and joints	1	Femoral hernia

Kisho

Perlman syndrome

Overview

Clinical Presentation

Explore clinical features

Genetic Landscape

Diagnosis

Prognosis

Research Landscape

Recent Publications

Medical References

External Resources

OMIM

Orphanet

GARD

Questions for Your Care Team

Questions for Your Care Team

FAQ

Frequently Asked Questions

Perlman syndrome

Overview

Clinical Presentation

Explore clinical features

Genetic Landscape

Diagnosis

Prognosis

Research Landscape

Recent Publications

Medical References

External Resources

OMIM

Orphanet

GARD

Related Diseases

Questions for Your Care Team

Questions for Your Care Team

FAQ

Frequently Asked Questions

What is Perlman syndrome?

What are the symptoms of Perlman syndrome?

What causes Perlman syndrome?

How is Perlman syndrome inherited?

How rare is Perlman syndrome?

How is Perlman syndrome diagnosed?

Are there treatments for Perlman syndrome?

What complications can arise from Perlman syndrome?

How does Perlman syndrome affect daily life for children?

What is the life expectancy for someone with Perlman syndrome?

Are there specialists that should be involved in the care of someone with Perlman syndrome?