Authors’ contributions
ZA, SKE and SN developed the concept of the study and the study design and wrote the draft manuscript. ZA, SKE, KSS and SN extracted the history. KSS examined the patient. SHG re-examined the bone marrow smears and biopsy and reported the findings. ZA, SKE, SN, KSS, AMH, MS, SHG with the input of all authors interpreted the patient data. AMH and MS reviewed and analysed all laboratory data. All authors read and approved the final manuscript.