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Shwachman Diamond Syndrome

Shwachman Diamond Syndrome

National Organization for Rare Disorders, Inc.

Important
It is possible that the main title of the report Shwachman Diamond Syndrome is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.

Synonyms

  • lipomatosis of pancreas, congenital
  • pancreatic insufficiency and bone marrow dysfunction
  • Shwachman-Bodian syndrome
  • Shwachman-Diamond-Oski syndrome
  • Shwachman syndrome

Disorder Subdivisions

  • None

General Discussion

Shwachman syndrome is a rare genetic disorder with multiple and varied manifestations. The disorder is typically characterized by signs of insufficient absorption (malabsorption) of fats and other nutrients due to abnormal development of the pancreas (pancreatic insufficiency) and improper functioning of the bone marrow (bone marrow dysfunction), resulting in low levels of circulating blood cells (hematologic abnormalities). Additional characteristic findings may include short stature; abnormal bone development affecting the rib cage and/or bones in the arms and/or legs (metaphyseal dysostosis); and/or liver abnormalities.

Due to abnormal skeletal changes, individuals with Shwachman syndrome may have abnormal thickening of the ribs and their supporting connective tissue (costochondral thickening), resulting in unusually short, flared ribs. In addition, improper bone development (abnormal ossification) within the arms and/or legs (limbs) may cause growth delay in particular bones. Many children with Shwachman syndrome may also be smaller than expected for their ages, with below average height (short stature) and weight. Although malabsorption due to pancreatic insufficiency may itself cause problems with growth and nutrition, short stature appears to be one of the many primary manifestations of Shwachman syndrome.

In addition, as a result of bone marrow dysfunction, individuals with Shwachman syndrome may have a decrease in any or all types of blood cells. Therefore, they may have low levels of certain white blood cells (neutropenia), platelets (thrombocytopenia), red blood cells (anemia), and/or all types of blood cells (pancytopenia). Neutropenia is the most common blood abnormality associated with Shwachman syndrome. Because neutrophils, a type of white blood cell, play an essential role in fighting bacterial infections, many affected individuals are prone to repeated bacterial infections (e.g., recurrent respiratory infections [pneumonia] and infections of the middle ear [otitis media]); in some cases, infections may be severe.

Some affected individuals may also have abnormal enlargement of the liver (hepatomegaly), increased levels of certain liver enzymes in the blood, and/or other findings in association with the disorder. Shwachman syndrome is believed to be inherited as an autosomal recessive trait.

Resources

Shwachman-Diamond Syndrome Foundation
127 Western Avenue
Sherborn, MA 01770
USA
Tel: (888)825-7373
Fax: (888)825-7373
Tel: (888)825-7373
Email: info@shwachman-diamond.org
Internet: http://www.shwachman-diamond.org

National Neutropenia Network
P.O. Box 1693
Brighton, MI 48116
USA
Tel: (517)294-0736
Email: leereeves99@gmail.com
Internet: http://www.neutropenianet.org

NIH/National Institute of Arthritis and Musculoskeletal and Skin Diseases
Information Clearinghouse
One AMS Circle
Bethesda, MD 20892-3675
USA
Tel: (301)495-4484
Fax: (301)718-6366
Tel: (877)226-4267
TDD: (301)565-2966
Email: NIAMSinfo@mail.nih.gov
Internet: http://www.niams.nih.gov/

NIH/National Heart, Lung and Blood Institute
P.O. Box 30105
Bethesda, MD 20892-0105
Tel: (301)592-8573
Fax: (301)251-1223
Email: nhlbiinfo@rover.nhlbi.nih.gov
Internet: http://www.nhlbi.nih.gov/

NIH/National Institute of Diabetes, Digestive & Kidney Diseases
Office of Communications & Public Liaison
Bldg 31, Rm 9A06
31 Center Drive, MSC 2560
Bethesda, MD 20892-2560
Tel: (301)496-3583
Email: NDDIC@info.niddk.nih.gov
Internet: http://www2.niddk.nih.gov/

Neutropenia Support Association, Inc.
971 Corydon Avenue
P.O. Box 243
Winnepeg
Manitoba, R3M 3S7
Canada
Tel: 2044898454
Tel: 8006638876
Email: stevensl@neutropenia.ca
Internet: http://www.neutropenia.ca

Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126
Tel: (301)251-4925
Fax: (301)251-4911
Tel: (888)205-2311
TDD: (888)205-3223
Internet: http://rarediseases.info.nih.gov/GARD/

Madisons Foundation
PO Box 241956
Los Angeles, CA 90024
Tel: (310)264-0826
Fax: (310)264-4766
Email: getinfo@madisonsfoundation.org
Internet: http://www.madisonsfoundation.org

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders (NORD). A copy of the complete report can be downloaded free from the NORD website for registered users. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational therapies (if available), and references from medical literature. For a full-text version of this topic, go to www.rarediseases.org and click on Rare Disease Database under "Rare Disease Information".

The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only. NORD recommends that affected individuals seek the advice or counsel of their own personal physicians.

It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report

This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.

For additional information and assistance about rare disorders, please contact the National Organization for Rare Disorders at P.O. Box 1968, Danbury, CT 06813-1968; phone (203) 744-0100; web site www.rarediseases.org or email orphan@rarediseases.org

Last Updated:  6/4/2012
Copyright  1987, 1989, 1993, 1996, 1997, 1999, 2001, 2002, 2009, 2012 National Organization for Rare Disorders, Inc.

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