scholarly journals Acquired Amegakaryocytic Thrombocytopenia and Pure Red Cell Aplasia in Thymoma

2018 ◽  
Vol 2018 ◽  
pp. 1-3 ◽  
Author(s):  
Sumit Dahal ◽  
Eliza Sharma ◽  
Suyash Dahal ◽  
Binav Shrestha ◽  
Bikash Bhattarai

Association of thymoma with myasthenia gravis, pure red cell aplasia, and aplastic anemia is well documented. However, thymoma complicated by acquired amegakaryocytic thrombocytopenia (AAMT) is rarely reported. Here, we present a case of a 60-year-old male with past medical history of recurrent invasive thymoma who presented with cough and blood in sputum. He was found to have severe normocytic normochromic anemia and thrombocytopenia that did not improve with intravenous steroids or multiple transfusions of red cells and platelets. Subsequent bone marrow biopsy showed severely depleted megakaryocytes and erythroid precursor cells with relative myeloid hyperplasia suggestive of amegakaryocytic thrombocytopenia and red cell aplasia. He was started on oral cyclosporine but subsequently developed leukopenia and refused any further treatment or diagnostic procedures and left the hospital against medical advice. AAMT, thus, may be a very early presentation of impending aplastic anemia, and treating physicians need to be aware of this entity.

2017 ◽  
Author(s):  
Nancy Berliner ◽  
John M Gansner

This review focuses on anemia resulting from production defects generally associated with marrow aplasia or replacement. The definition, epidemiology, etiology, pathogenesis, diagnosis, differential diagnosis, management, complications, and prognosis of the following production defects are discussed: Acquired aplastic anemia and acquired pure red cell aplasia. Figures depict a leukoerythroblastic blood smear, a biopsy comparing normal bone marrow and bone marrow showing almost complete aplasia, and a marrow smear. A table lists the causes of aplastic anemia. This review contains 3 figures; 1 table; 108 references.


1983 ◽  
Vol 1 (2) ◽  
pp. 95-103 ◽  
Author(s):  
Neal S. Young ◽  
Harvey G. Klein ◽  
Patricia Griffith ◽  
Arthur W. Nienhuis

2017 ◽  
Vol 106 (4) ◽  
pp. 500-507
Author(s):  
Yunsuk Choi ◽  
Jae-Cheol Jo ◽  
Hee-jeong Jeon ◽  
Dong Wook Kim ◽  
Myung Hee Chang ◽  
...  

2008 ◽  
Vol 32 (5) ◽  
pp. 823-827 ◽  
Author(s):  
Dominic W. Lai ◽  
Thomas P. Loughran ◽  
Jaroslaw P. Maciejewski ◽  
Sebastian Sasu ◽  
Sophie X. Song ◽  
...  

2015 ◽  
Vol 104 (7) ◽  
pp. 1405-1413
Author(s):  
Makoto Hirokawa ◽  
Naohito Fujishima ◽  
Ayumi Omokawa ◽  
Shigeharu Ueki

Author(s):  
Thomas H. Tötterman ◽  
A. Killander ◽  
A. Kreuger ◽  
G. Gustafsson ◽  
J. Nisell ◽  
...  

2019 ◽  
Vol 41 (1) ◽  
pp. 145-151 ◽  
Author(s):  
Gabriela Lacreta ◽  
Sérgio Gardano Elias Bucharles ◽  
Gabriela Sevignani ◽  
Miguel Carlos Riella ◽  
Marcelo Mazza do Nascimento

ABSTRACT Introduction: Anemia is a frequent multifactorial complication of CKD seen in patients on dialysis derived mainly from impaired erythropoietin (EPO) production. A less common cause of anemia in individuals with CKD is pure red cell aplasia (PRCA) secondary to the production of anti-EPO antibodies. Objective: This paper aimed two describe two cases of PRCA secondary to the production of anti-EPO antibodies including choice of treatment, patient progression, and a literature review. Materials: This study included the cases of two patients with CKD on hemodialysis with severe anemia in need of specific investigation and management. Results: Patient 1 with CKD secondary to hypertension treated with EPO for 7 months showed persistent decreases in hemoglobin (Hb) levels despite the subcutaneous administration of increasing doses of EPO; the patient required recurring blood transfusions. Workup and imaging tests were negative for the main causes of anemia in individuals with CKD on dialysis. Patient 2 with CKD secondary to adult polycystic kidney disease had been taking EPO for 2 years. The patient developed severe abrupt anemia the month he was started on HD, and required recurring transfusions to treat the symptoms of anemia. Workup and imaging findings were inconclusive. Specific laboratory tests confirmed the patients had anti-EPO antibodies. After six months of immunosuppressant therapy (corticosteroids + cyclosporine) the patients were stable with Hb > 9.0 g/dl. Conclusion: PRCA is a rare condition among patients on dialysis treated with rhEPO and should be considered as a possible cause of refractory anemia. Treating patients with PRCA may be challenging, since the specific management and diagnostic procedures needed in this condition are not always readily available.


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