National Center for Advancing and Translational Sciences Genetic and Rare Diseases Information Center, a program of the National Center for Advancing and Translational Sciences

Griscelli syndrome type 2



Other Names:
GS2; Griscelli syndrome with hemophagocytic syndrome; Partial albinism and immunodeficiency syndrome; GS2; Griscelli syndrome with hemophagocytic syndrome; Partial albinism and immunodeficiency syndrome; PAID syndrome; Griscelli-Pruniéras syndrome type 2; Hypopigmentation-immunodeficiency with or without neurologic impairment syndrome See More
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Griscelli syndrome type 2 (GS2) is a rare, inherited condition that affects the skin, hair, and immune system. People with GS2 have unusually light skin and silver-colored hair. They are also prone to recurrent infections and develop an immune condition called hemophagocytic lymphohistiocytosis (HLH). HLH can damage organs and tissues throughout the body, causing life-threatening complications.[1] GS2 is caused by changes (mutations) in the RAB27A gene and is inherited in an autosomal recessive manner.[1][2] The only current treatment that can extend survival is stem cell transplantation (a bone marrow transplant).[3] Untreated, most children with GS2 do not survive past early childhood.[2]
Last updated: 5/1/2017

This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.

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Medical Terms Other Names
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HPO ID
80%-99% of people have these symptoms
Hypopigmented skin patches
Patchy loss of skin color
0001053
Premature graying of hair
Early graying
Premature graying
Premature greying
Premature hair graying
[ more ]
0002216
Silver-gray hair
Silver-gray hair color
Silvery-gray hair
[ more ]
0002218
White hair 0011364
30%-79% of people have these symptoms
Abnormal circulating lipid concentration 0003119
Abnormality of neutrophils 0001874
Decreased circulating antibody level 0004313
Immunodeficiency
Decreased immune function
0002721
Leukopenia
Decreased blood leukocyte number
Low white blood cell count
[ more ]
0001882
Lymphadenopathy
Swollen lymph nodes
0002716
Reduced tendon reflexes 0001315
Thrombocytopenia
Low platelet count
0001873
5%-29% of people have these symptoms
Abnormal eyebrow morphology
Abnormality of the eyebrow
0000534
Abnormal eyelash morphology
Abnormal eyelashes
Abnormality of the eyelashes
Eyelash abnormality
[ more ]
0000499
Ascites
Accumulation of fluid in the abdomen
0001541
Ataxia 0001251
Bone marrow hypocellularity
Bone marrow failure
0005528
Cranial nerve paralysis 0006824
Encephalocele 0002084
Fever 0001945
Global developmental delay 0001263
Hepatitis
Liver inflammation
0012115
Hepatomegaly
Enlarged liver
0002240
Hydrocephalus
Too much cerebrospinal fluid in the brain
0000238
Intellectual disability
Mental deficiency
Mental retardation
Mental retardation, nonspecific
Mental-retardation
[ more ]
0001249
Iris hypopigmentation
Light eye color
0007730
Jaundice
Yellow skin
Yellowing of the skin
[ more ]
0000952
Muscular hypotonia
Low or weak muscle tone
0001252
Nystagmus
Involuntary, rapid, rhythmic eye movements
0000639
Pedal edema
Fluid accumulation in lower limbs
Lower leg swelling
[ more ]
0010741
Progressive neurologic deterioration
Worsening neurological symptoms
0002344
Pyloric stenosis 0002021
Seizure 0001250
Short stature
Decreased body height
Small stature
[ more ]
0004322
Spasticity
Involuntary muscle stiffness, contraction, or spasm
0001257
Splenomegaly
Increased spleen size
0001744
Percent of people who have these symptoms is not available through HPO
Abnormal cerebellum morphology
Abnormality of the cerebellum
Cerebellar abnormalities
Cerebellar abnormality
Cerebellar anomaly
[ more ]
0001317
Accumulation of melanosomes in melanocytes 0001008
Autosomal recessive inheritance 0000007
Death in childhood 0003819
Hemophagocytosis 0012156
Hypopigmentation of the skin
Patchy lightened skin
0001010
Infantile onset
Onset in first year of life
Onset in infancy
[ more ]
0003593
Melanin pigment aggregation in hair shafts 0002220
Recurrent bacterial infections
Bacterial infections, recurrent
Frequent bacterial infections
Increased susceptibility to bacterial infections
Recurrent major bacterial infections
[ more ]
0002718
Reduced delayed hypersensitivity 0002972
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Last updated: 7/1/2020

Making a diagnosis for a genetic or rare disease can often be challenging. Healthcare professionals typically look at a person’s medical history, symptoms, physical exam, and laboratory test results in order to make a diagnosis. The following resources provide information relating to diagnosis and testing for this condition. If you have questions about getting a diagnosis, you should contact a healthcare professional.

Testing Resources

  • The Genetic Testing Registry (GTR) provides information about the genetic tests for this condition. The intended audience for the GTR is health care providers and researchers. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.

Bone marrow transplantation is the most effective treatment and the only possible cure for Griscelli syndrome type 2 (GS2). Immunosuppressive therapies may be used in preparation for transplantation, and to suppress damage to multiple organs caused by hemophagocytic lymphohistiocystosis. Recurrent infections may be minimized with antibacterial and antiviral medications. In addition, avoiding interactions that increase the risk of infection is important.[3]

Additional information about various medications used to treat GS2 can be viewed on Medscape Reference's website here.
Last updated: 5/1/2017

If you need medical advice, you can look for doctors or other healthcare professionals who have experience with this disease. You may find these specialists through advocacy organizations, clinical trials, or articles published in medical journals. You may also want to contact a university or tertiary medical center in your area, because these centers tend to see more complex cases and have the latest technology and treatments.

If you can’t find a specialist in your local area, try contacting national or international specialists. They may be able to refer you to someone they know through conferences or research efforts. Some specialists may be willing to consult with you or your local doctors over the phone or by email if you can't travel to them for care.

You can find more tips in our guide, How to Find a Disease Specialist. We also encourage you to explore the rest of this page to find resources that can help you find specialists.

Healthcare Resources


Research helps us better understand diseases and can lead to advances in diagnosis and treatment. This section provides resources to help you learn about medical research and ways to get involved.

Patient Registry


Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.

Organizations Supporting this Disease


These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.

Where to Start

  • DermNet NZ is an online resource about skin diseases developed by the New Zealand Dermatological Society Incorporated. DermNet NZ provides information about this condition.
  • Genetics Home Reference (GHR) contains information on Griscelli syndrome type 2. This website is maintained by the National Library of Medicine.

In-Depth Information

  • Medscape Reference provides information on this topic. You may need to register to view the medical textbook, but registration is free.
  • The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
  • Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Griscelli syndrome type 2. Click on the link to view a sample search on this topic.

Questions sent to GARD may be posted here if the information could be helpful to others. We remove all identifying information when posting a question to protect your privacy. If you do not want your question posted, please let us know.


  1. Griscelli syndrome. Genetics Home Reference. September 2013; http://ghr.nlm.nih.gov/condition/griscelli-syndrome.
  2. Griscelli syndrome. DermNet NZ. January 2015; http://www.dermnetnz.org/colour/griscelli.html.
  3. Scheinfeld NS. Griscelli Syndrome. Medscape Reference. Jan 19, 2016; http://emedicine.medscape.com/article/1069442-overview.