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The TEMPI syndrome.
David B Sykes1, Casey O'Connell2, Wilfried Schroyens3
1Massachusetts General Hospital, Boston, MA.
Blood
|February 29, 2020
Summary
TEMPI syndrome, a rare disorder with five key features, may be caused by monoclonal antibodies. Treatment targeting plasma cells led to symptom resolution, suggesting a causal link.
Area of Science:
- Hematology
- Nephrology
- Pulmonology
Background:
- TEMPI syndrome is a rare, acquired disorder.
- It presents with five distinct features: telangiectasias, elevated erythropoietin with erythrocytosis, monoclonal gammopathy, perinephric fluid collections, and intrapulmonary shunting.
Purpose of the Study:
- To describe the clinical characteristics of TEMPI syndrome.
- To investigate the potential pathogenic role of monoclonal antibodies in TEMPI syndrome.
Main Methods:
- Case identification and clinical data review.
- Analysis of patient response to plasma cell-directed therapy.
Main Results:
- Patients exhibited the five defining features of TEMPI syndrome.
- Complete symptom resolution was observed after treatment with plasma cell-directed therapy.
Conclusions:
- The findings support the hypothesis that monoclonal antibodies are pathogenic in TEMPI syndrome.
- Further research involving international collaboration and identification of more patients is needed to fully understand TEMPI syndrome.
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