Fig. 5.

Nuclear medicine lymphoscintigraphy study performed with Tc-99m filtered sulfur colloid injected into the interdigital webs of the patient's right hand. Sequential imaging obtained at 2 minutes/frame. Normal lymphatic drainage was seen within the right upper chest. Faint early activity is seen within the right chest tube (A). On delayed imaging (B), significant activity is seen within the right chest tube (arrow) and drainage container. This study confirmed injury to the lymphatic drainage system leading to recurrent chylothorax.