Polycythemia vera

Polycythemia vera (PV) is an acquired myeloproliferative disorder characterized by an elevated absolute red blood cell mass caused by uncontrolled red blood cell production, frequently associated with uncontrolled white blood cell and platelet production.

Chorea

Chorea (Greek for 'dance') refers to widespread arrhythmic involuntary movements of a forcible, jerky and restless fashion. It is a random-appearing sequence of one or more discrete involuntary movements or movement fragments. Movements appear random because of variability in timing, duration or location. Each movement may have a distinct start and end. However, movements may be strung together and thus may appear to flow randomly from one muscle group to another. Chorea can involve the trunk, neck, face, tongue, and extremities.


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(per page)
PMID (PMCID)
24741314
(3982977)
 OTHER
Chorea disclosing a polycythemia vera.
Liu G, Chang J, Liu Z, Qiang Q, Gu C, Zhang Y, Wei W.
Neuropsychiatr Dis Treat. 2014;10:563-5.
We report the case of a 70 year-old woman whose polycythemia vera (PV), with Janus Kinase-2 (JAK2) mutation, presented as chorea.
24753674
(3992746)
 OTHER
Essential thrombocythemia: Rare cause of chorea.
Venkatesan EP, Ramadoss K, Balakrishnan R, Prakash B.
Ann Indian Acad Neurol. 2014;17(1):106-7.
Polycythemia vera (PV) another MPD closely related to ET may be present with generalized chorea.
21559940
 FEMALE
Reversible abnormal functional neuroimaging presentations in polycythemia vera with chorea.
Huang HC, Wu YC, Shih LY, Lo WC, Tsai CH, Shyu WC.
J Neurol. 2011;258(11):2054-7.
We report a case of polycythemia vera with chorea in which the brain metabolism and dopamine system were investigated using 2-[(18)F]fluoro-2-deoxy-D-glucose positron emission tomography (FDG PET) and (99m)Tc-labeled tropane dopamine transporter ((99m)Tc-TRODAT-1) single photon emission computed tomography (SPECT).
21559940
 FEMALE
Reversible abnormal functional neuroimaging presentations in polycythemia vera with chorea.
Huang HC, Wu YC, Shih LY, Lo WC, Tsai CH, Shyu WC.
J Neurol. 2011;258(11):2054-7.
Reversible abnormal functional neuroimaging presentations in polycythemia vera with chorea.
2917203
 FEMALE
Chorea in polycythemia vera: a rare presentation of hyperviscosity.
Cohen AM, Gelvan A, Yarmolovsky A, Djaldetti M.
Blut. 1989;58(1):47-8.
Chorea in polycythemia vera: a rare presentation of hyperviscosity.
2917203
 FEMALE
Chorea in polycythemia vera: a rare presentation of hyperviscosity.
Cohen AM, Gelvan A, Yarmolovsky A, Djaldetti M.
Blut. 1989;58(1):47-8.
A 65-year-old woman developed severe chorea as the presenting symptom of the hyperviscosity syndrome together with polycythemia vera and an ovarian cyst.
6320382
 FEMALE
[Chorea and Vaquez's disease. Apropos of a case associated with extrapyramidal tremor].
Tannier C, Bentzinger C, Feuerstein J.
Sem Hop. 1983;59(43):2991-4.
After reporting a case, the authors recall the description of two fairly uncommon complications of polycythemia vera, chorea and extrapyramidal tremor, whose course is closely related to that of the hematological disease.