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A type of thrombocytosis, a sustained elevation of platelet numbers, which affects the platelet/megakaryocyte lineage and may create a tendency for thrombosis and haemorrhage but does not cause myeloproliferation. The disease usually presents at birth but can be discovered at any time during life and thus can affect all ages. Familial thrombocytosis is caused by germline mutations in the THPO gene (3q26.3-q27) or in the MPL (MPL S505N) gene (1p34).
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A type of thrombocytosis, a sustained elevation of platelet numbers, which affects the platelet/megakaryocyte lineage and may create a tendency for thrombosis and hemorrhage but does not cause myeloproliferation. The disease usually presents at birth but can be discovered at any time during life and thus can affect all ages. Familial thrombocytosis is caused by germline mutations in the THPO gene (3q26.3-q27) or in the MPL (MPL S505N) gene (1p34).
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