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Gray platelet syndrome

Gray platelet syndrome




Overview

Gray platelet syndrome gets its name from how the platelets in people with this condition appear under a microscope. Platelets are specialized blood cells that allow your blood to clot and stop bleeding.

Many conditions can cause blood clotting problems that range from mild to life threatening. Gray platelet syndrome tends to cause mild to moderate bleeding. It usually doesn’t affect life span but can lead to serious complications for some people, such as spleen rupture.

Read on to learn more about this rare condition, including its causes, symptoms, and treatment options.

Gray platelet syndrome causes and risk factors

Gray platelet syndrome was first described in medical literature in 1971. It’s an inherited condition, meaning it develops when you receive associated genes from your parents. It’s been linked to mutations in the NBEAL2 gene.

NBEAL2 seems to code for the formation of special sacs inside platelets called alpha-granules. Proteins in these sacs help platelets stick together and help seal off damaged blood vessels.

Gray platelet syndrome seems to be inherited in a recessive pattern, meaning you only develop the condition if you receive an abnormal copy of an associated gene from both parents.

According to researchers in a 2022 case study, only 60 cases of gray platelet syndrome have been reported in medical literature.

Gray platelet syndrome symptoms

People with gray platelet syndrome tend to have large and abnormal platelets that make them prone to abnormal bleeding. Some of the characteristic symptoms of gray platelet syndrome include:

frequent nosebleeds

abnormally heavy bleeding from minor injuries

excessive bleeding during surgery

irregular and heavy menstruation

Abnormal bleeding in people with gray platelet syndrome is typically mild to moderate, but it may cause life threatening bleeding in some cases. It usually becomes apparent in early childhood.

Autoimmune disease seems to be common in people with gray platelet syndrome. In a 2020 study, researchers detected autoantibodies in over half of 47 people with gray platelet syndrome.

Autoimmune diseases that have been reported in people with gray platelet syndrome include:

Hashimoto thyroiditis

rheumatoid arthritis

alopecia areata

lupus

vitiligo

atypical autoimmune lymphoproliferative syndrome

Potential complications of gray platelet syndrome

Gray platelet syndrome may lead to serious bleeding for some people, especially during surgery or from severe injuries.

People with gray platelet syndrome often develop a condition called myelofibrosis, in which scar tissue forms in the bone marrow that produces blood cells. To compensate, your spleen may start producing more blood cells, which may lead to an enlarged spleen.

One rare case of spleen rupture was reported in a 15-year-old as the presenting sign of gray platelet syndrome.

Gray platelet syndrome diagnosis

Your doctor may suspect that you have a bleeding disorder based on your symptoms and history of bleeding. To start the diagnostic process, they will likely:

review your personal medical history

review your family medical history

perform a physical exam to look for characteristic signs, like an enlarged spleen

If your doctor suspects a bleeding disorder after this initial review, they’ll likely recommend blood tests. You might receive tests like Trusted Source:

complete blood count (CBC)

partial thromboplastin time test

prothrombin time test

mixing test to look for autoantibodies

clotting factor tests

genetic testing

tests for other medical conditions

Gray platelet syndrome treatment

Most people with gray platelet syndrome are treated for their symptoms depending on the degree of bleeding. You may receive:

anti-fibrinolytic drugs to improve blood clotting

medications to prevent surgical bleeding

platelet transfusions

eltrombopag to increase platelet count

Your doctor may also recommend avoiding nonsteroidal anti-inflammatory drugs (NSAIDs), like ibuprofen (Advil).

An allogeneic stem cell transplant remains the only way to cure gray platelet syndrome. It’s usually only considered for younger people with severe symptoms.

The procedure involves receiving a high amount of chemotherapy to destroy abnormal bone marrow cells and then receiving a transfusion of bone marrow cells from a donor who’s a close genetic match. These cells can help your body produce normal platelets.

Type of Doctor Department : A hematologist

      

        


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