Five women suspected of having puerperal ovarian vein thrombosis (POVT) were examined with either computed tomography (CT) (five patients), ultrasonography (US) (three patients), magnetic resonance (MR) imaging (one patient), or a combination of these modalities. CT findings included tubular retroperitoneal mass (five patients), periuterine mass (four patients), enlarged uterus (four patients), fluid in the uterus (five patients), central ovarian vein thrombus (four patients), inferior vena cava thrombus (one patient), right hydroureter (one patient), and right ureteral compression (one patient). US findings were similar to CT findings except for an inability to demonstrate the right hydroureter and ureteral compression. MR imaging demonstrated the retroperitoneal mass and central ovarian vein thrombus. CT proved to be superior for the initial evaluation and subsequent diagnosis of POVT. US was useful for follow-up examinations, and MR imaging results confirmed a case of POVT that was suspected following CT.

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Primary (congenital) intraosseous arteriovenous malformations are rare, accounting for less than one per cent of all primary intraosseous lesions. They are quite variable in their gross and microscopic presentation, yet all can be traced to anomalous development of the primitive vascular system. They may be totally asymptomatic, cosmetically disfiguring, painful, or on rare occasions, cause high-output cardiac failure. Surgical treatment is often unrewarding with recurrence not uncommon. Intra-arterial embolization has shown promising results. We present three cases of primary intraosseous arteriovenous malformations which on initial work-up mimicked malignant disease. Arteriography proved diagnostic in all three cases.