Short answer · Medically reviewed summary · Last updated: 2026-05-08
Myelofibrosis is a rare blood cancer characterized by the buildup of scar tissue in the bone marrow, officially classified under the umbrella of Philadelphia chromosome-negative myeloproliferative neoplasms (MPNs). While Myelofibrosis is the standard medical term, it was historically referred to as agnogenic myeloid metaplasia or idiopathic myelofibrosis, terms you may still encounter in older medical records or literature. What are the common synonyms and historical names for Myelofibrosis? Over the past century, medical understanding of Myelofibrosis has evolved, leading to various names used in clinical practice and international classification systems.
Myelofibrosis synonyms
Other names for Myelofibrosis: synonyms, acronyms and related terms used by doctors and patients.
Myelofibrosis is a rare blood cancer characterized by the buildup of scar tissue in the bone marrow, officially classified under the umbrella of Philadelphia chromosome-negative myeloproliferative neoplasms (MPNs). While Myelofibrosis is the standard medical term, it was historically referred to as agnogenic myeloid metaplasia or idiopathic myelofibrosis, terms you may still encounter in older medical records or literature.
What are the common synonyms and historical names for Myelofibrosis?
Over the past century, medical understanding of Myelofibrosis has evolved, leading to various names used in clinical practice and international classification systems. Before the underlying genetic drivers were fully understood, the condition was frequently labeled based on its physical presentation. Commonly encountered synonyms and historical terms include:
- Primary Myelofibrosis (PMF)
- Idiopathic Myelofibrosis
- Agnogenic Myeloid Metaplasia
- Chronic Idiopathic Myelofibrosis
- Myelosclerosis with Myeloid Metaplasia
Why does Myelofibrosis have so many different names?
The variety of names for Myelofibrosis stems from historical reclassifications as researchers moved from describing symptoms to identifying molecular mechanisms. Early names like "agnogenic" meant "of unknown origin," reflecting a time when the JAK2, CALR, or MPL genetic mutations that drive Myelofibrosis were unknown. Today, the World Health Organization (WHO) and the International Classification of Diseases (ICD-10/11) prefer the term Myelofibrosis, specifically distinguishing between Primary Myelofibrosis and secondary cases that arise from other conditions like Polycythemia Vera or Essential Thrombocythemia.
How is the disease classified in medical databases?
Standardizing terminology is vital for tracking the 16 members of our DiseaseMaps.org community and global patients alike. In formal medical coding, Myelofibrosis is typically documented under the following identifiers:
- Orphanet: ORPHA:589 (Primary Myelofibrosis)
- OMIM: #254450
- ICD-10: D47.1 (Other and unspecified chronic myeloproliferative diseases)
Next steps
- Consult a hematologist-oncologist specializing in myeloproliferative neoplasms to confirm your specific diagnosis.
- Request a copy of your pathology report to see if your Myelofibrosis is classified as primary or secondary.
- Join the DiseaseMaps.org community to connect with other patients and share experiences.
- Visit the MPN Research Foundation for the latest updates on clinical trials and targeted therapies.
Medical disclaimer: This content is for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician regarding a medical condition.
References
- Orphanet (ORPHA:589) - Primary Myelofibrosis.
- NIH Genetic and Rare Diseases Information Center (GARD) - Myelofibrosis.
- Online Mendelian Inheritance in Man (OMIM) - #254450.
- MPN Research Foundation - Understanding Myelofibrosis.
