en علوم آزمایشگاهی Laboratory Sciences گزارش مورد Case Report <div style="text-align: justify;"><span style="font-size:12px;"><span style="font-family:Times New Roman;">Hairy cell leukemia (HCL) is characterized by pancytopenia and is usually associated with massive splenomegaly; however, the same may not be true in clinical settings. Here, we report a case of HCL without the classical clinical feature of splenomegaly. Absence of splenomegaly doesn&rsquo;t exclude the diagnosis of HCL. A careful study of morphological findings on bone marrow aspirate and biopsy, followed by appropriate ancillary tests, aids in correct diagnosis. A high index of suspicion is essential for diagnosing and appropriately managing such cases. A strong suspicion on morphology in such cases is a prerequisite for reaching a correct diagnosis, even in the absence of usual clinical presentation.</span></span><br> &nbsp;</div> Hairy cell leukemia, Splenomegaly, Bone marrow, Unusual, Clinical, Presentation 9 11 http://mlj.goums.ac.ir/browse.php?a_code=A-10-1251-2&slc_lang=en&sid=1 Shuchismita . shuchi.smita123@gmail.com 100319475328460029895 100319475328460029895 No Department Of Pathology (Hematology), Indira Gandhi Institute of Medical Sciences (IGIMS), Patna, India Iffat Jamal iffatjamal111@gmail.com 100319475328460029896 100319475328460029896 Yes Department Of Pathology (Hematology), Indira Gandhi Institute of Medical Sciences (IGIMS), Patna, India Vijayanand Choudhary drvijayanandchoudhary@gmail.com 100319475328460029897 100319475328460029897 No Department Of Pathology (Hematology), Indira Gandhi Institute of Medical Sciences (IGIMS), Patna, India