PMC3731329_01
Pelvic computed tomography of the RA patient with factor XIII deficiency.. The white arrow indicates the intra-pelvic hemorrhage. (a) Transverse plane and (b) coronal plane.
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PMC3731329_01_pone.0069944.g001.jpg
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APTT (activated partial thromboplastin time), PT (prothrombin time) and bleeding time were within the normal ranges; however, his plasma factor XIII activity level was only 58% (normal range 70-140%) (Table 1). A computed tomography (CT) scan of the pelvis revealed the presence of a mass in the left iliac muscle (Fig. 1a-b).