Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Life-threatening biopsy of an iliopsoas pseudotumour in a patient with haemophilia: a case report | Journal of Medical Case Reports BioMed Central Open Access Case report Life-threatening biopsy of an iliopsoas pseudotumour in a patient with haemophilia a case report Azan S Al Saadi 1 Ali H Al Wadan1 Samir A El Hamarneh1 and Mohamed E Emad2 Address Department of Surgery Sana a University Sana a Yemen and 2Radiology Department Alexandria University Alexandria Egypt Email Azan S Al Saadi - azanalsaadi@ Ali H Al Wadan - amresam@ Samir A El Hamarneh - hamarneh@ Mohamed E Emad - mohammede77@ Corresponding author Published 30 April 2008 Received 19 June 2007 Journal of Medical Case Reports 2008 2 135 doi 1752-1947-2-135 Accepted 30 April 2008 This article is available from http content 2 1 135 2008 Al Saadi et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Introduction Haemophilia A patients often give a history of unusual bleeding associated with minor trauma or surgical procedures. Iliopsoas pseudotumour is a serious complication of undiagnosed haemophilia which may follow a trivial procedure. Case presentation We present a 20-year-old male patient with a six-month history of left leg weakness and limitation of movement. Clinically he was diagnosed as having a psoas muscle rhabdomyosarcoma. Later proofed to be haemophilic pseudotumour HP . Conclusion Progressively enlarging masses in the pelvis of a person with haemophilia should raise the suspicion of a pseudotumour. The presence of a muscle mass in the pelvis or limb should be properly investigated and should raise the suspicion of haemophilia. Introduction Haemophilia A an X-linked recessive bleeding disorder is the most common severe type of inherited bleeding disorder affecting 1 .