Hematology
OTHER
A single case shows leukemia can initially look like a different blood disorder
Frontiers in Medicine
Published April 1, 2026
This report describes the detailed medical story of one patient. The patient first came to doctors with a low platelet count, a condition called immune thrombocytopenia (ITP). They received standard immunosuppressive treatment for ITP, and their platelet count improved temporarily. However, other blood cell counts later changed, prompting more investigation.
Doctors performed a bone marrow biopsy and advanced genetic testing. These tests found mutations typical of chronic myelomonocytic leukemia (CMML), which is a type of blood and bone marrow cancer. The patient's diagnosis was changed from ITP to CMML. Their treatment was switched to a chemotherapy drug called decitabine, and their condition stabilized.
It is crucial to understand this is a report of just one person's experience. The report does not mention any specific safety issues or side effects from the treatments. The main reason for caution is that one case cannot tell us how common this situation is. It does not prove that ITP leads to leukemia or that this diagnostic path is typical.
Readers should take from this that medicine can be complex, and diagnoses are sometimes refined over time as more information becomes available. For patients with similar conditions, this case highlights why doctors might order additional tests if the expected response to initial treatment is not seen. However, this single story does not change standard medical practice.
View Original Abstract ↓
ObjectiveTo explore the clinical characteristics, diagnosis and treatment process of a case initially diagnosed with primary immune thrombocytopenia (ITP) and finally diagnosed as chronic myeloid-monocytic leukemia (CMML).MethodsThe clinical manifestations, laboratory tests, bone marrow morphology, molecular genetic test results and treatment history of a CMML patient with thrombocytopenia as the first symptom were retrospectively analyzed.ResultsOne patient was initially diagnosed with immune thrombocytopenia (ITP). After receiving immunosuppressive treatment, the platelets temporarily rebounded, but subsequently the white blood cells increased, the proportion of monocytes increased, and typical CMML-related mutations were found in bone marrow morphology and NGS testing, and he was finally diagnosed as CMML. His condition stabilized after treatment with decitabine chemotherapy.ConclusionCMML can manifest as atypical thrombocytopenia in the early stage, which is delayed by the progression of ITP. Clinical attention should be paid to potential clonal bone marrow diseases in ITP patients who are refractory or have poor response to treatment. Early bone marrow morphological and molecular detection can help to clarify the diagnosis, guide treatment, and improve prognosis.
