PURPOSE: To describe various hysterosalpingographic (HSG) findings of intrauterine lesions, and to determinethe correlation of these with their hysteroscopic findings. MATERIALS AND METHODS: This study involved 100patients who during a 23-month period underwent both HSG and hysteroscopic examinations. The HSG findings werecategorized as intrauterine adhesion, endometrial polyp, myoma, or 'other', and were correlated with hysteroscopicfindings and histologic diagnoses. RESULTS: Diagnoses based on HSG findings were intrauterine adhesions (n=80),endometrial polyps (n=8), myomas (n=10) and 'other' (n=2). The hysteroscopic diagnoses of these patients wereintrauterine adhesions (n=68), endometrial polyps (n=11), myomas (n=4), and 'other' (n=17). HSG and hysteroscopicdiagnoses were consistent 72 patients (72%). CONCLUSION: Lesions presenting as filling defects on HSG sometimesshow nonspecific or overlapping findings and the normal uterus may produce defects of this kind which mimicklesions.