keywords Accidental dislodgments Ball-valve clots CATHETER-RELATED THROMBOSIS CHILDREN COMPLICATIONS CVL dysfunction CVL occlusion CVL-related thrombosis Central venous lines Compressibility DIAGNOSIS EVENTS Life Sciences & Biomedicine MANAGEMENT Mural thrombosis Oncology Pediatrics Pinch-off syndrome Port-A-Cath Postthrombotic syndrome Prothrombotic effects Science & Technology Sleeve thrombus THROMBOEMBOLISM Thrombolytic agents Venogram