Cyclic Thrombocytopenia: A Case Report

Cyclic thrombocytopenia (CTP) is a very rare disorder characterized by periodic fluctuations in platelet counts, typically resulting in episodes of thrombocytopenia alternating with normal platelet counts. Most cases are idiopathic while some are associated with a primary hematologic disease. Frequently CTP patients are misdiagnosed as idiopathic thrombocytopenic purpura (ITP), but usually they do not respond to standard ITP treatment.