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Revision as of 02:50, 27 November 2017

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Myelofibrosis

Overview

What are the symptoms?

What are the causes?

Who is at highest risk?

Diagnosis

When to seek urgent medical care?

Treatment options

Where to find medical care for Myelofibrosis?

Prevention

What to expect (Outlook/Prognosis)?

Possible complications

Myelofibrosis On the Web

Ongoing Trials at Clinical Trials.gov

Images of Myelofibrosis

Videos on Myelofibrosis

FDA on Myelofibrosis

CDC on Myelofibrosis

Myelofibrosis in the news

Blogs on Myelofibrosis

Directions to Hospitals Treating Myelofibrosis

Risk calculators and risk factors for Myelofibrosis

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Lakshmi Gopalakrishnan, M.B.B.S. [2]

Synonyms and keywords: Idiopathic myelofibrosis; Myeloid metaplasia; Agnogenic myeloid metaplasia; Primary myelofibrosis; Secondary myelofibrosis

Overview

Myelofibrosis is a disorder of the bone marrow, in which the marrow is replaced by scar (fibrous) tissue.

What are the symptoms of Myelofibrosis?

  • Abdominal fullness related to an enlarged spleen
  • Bone pain
  • Bruising
  • Easy bleeding
  • Fatigue
  • Increased likelihood of getting an infection
  • Pallor
  • Shortness of breath with exercise

What causes Myelofibrosis?

  • Bone marrow is the soft, fatty tissue inside your bones. Stem cells are immature cells in the bone marrow that give rise to all of your blood cells. Your blood is made of:
  • Red blood cells (which carry oxygen to your tissues)
  • White blood cells (which fight infection)
  • Platelets (which help your blood clot)
  • Scarring of the bone marrow means the marrow is not able to make enough blood cells. Anemia, bleeding problems, and a higher risk of infections may occur.
  • As a result, the liver and spleen try to make some of these blood cells. This causes these organs to swell, which is called extramedullary hematopoiesis.
  • The cause of myelofibrosis is unknown. There are no known risk factors. The disorder usually develops slowly in people over age 50.
  • Diseases such as leukemia and lymphoma may also cause bone marrow scarring. This is called secondary myelofibrosis.

Diagnosis

  • Physical examination shows swelling of the spleen. Later in the disease, it may also show an enlarged liver.
  • Tests that may be done include: CBC (complete blood count)
  • An examination of the blood shows teardrop-shaped red blood cells. Bone marrow biopsy may be done to rule out other causes of the symptoms.

When to seek urgent medical care?

Call for an appointment with your health care provider if symptoms of this disorder develop. Uncontrolled bleeding, shortness of breath, or jaundice that gets worse need urgent or emergency care.

Treatment options

  • There is no specific treatment for myelofibrosis. Treatment depends on the symptoms and degree of the low blood counts.
  • The goal of treatment is to relieve symptoms. Treatment may involve:
  • Blood transfusions to correct anemia
  • Radiation and chemotherapy
  • Medicines called recombinant erythropoietin or androgens to help stimulate red blood cell production
  • Splenectomy (removal of the spleen) if swelling causes symptoms, or to help with anemia
  • In young people, bone marrow or stem cell transplants appear to improve the outlook, and may cure the disease.

Where to find medical care for Myelofibrosis?

Directions to Hospitals Treating Myelofibrosis

Prevention of Myelofibrosis

There is no known prevention.

What to expect (Outlook/Prognosis)?

This disorder causes slowly worsening bone marrow failure with severe anemia. Low platelet count leads to easy bleeding. Spleen swelling may slowly get worse.

The average survival of people with primary myelofibrosis is about 5 years. However, some people may survive for decades.

Possible complications

  • Acute myelogenous leukemia
  • Liver failure

Source

Medlineplus

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