What Does Solitary Opacified Fallopian Tube On HSG Suggest?

Good evening doc, i did an HSG XRAY, FINDINGS: THE ENDOMETRIAL CAVITY IS FUSIFORM SHAPED WITH A SOLITARY OPACIFIED LEFT FALLOPIAN TUBE..THE SOLITARY FALLOPIAN TUBE IS VISUALIZED IS NORMAL IN COURSE AND CALIBRE WITH NORMAL PERITONAL SPILL INDICATING PATENT TUBE..THANKS SO MUCH