Summary of case history,　Wang, female, 39 years old, went to the hospital because of "RHe presented with the disease mainly because he "found an atrial mass for 14 years and paroxysmal precordial distension pain for 1 year". In November 2006, during physical examination, color Dopplar ultrasound of her heart revealed a mass in the right margin and right lateral atrium, and a pericardial cyst was suspected, measuring about 25 mm and 39 mm, without any special uncomfortable symptoms. Hence, she was reexamined regularly at Fuwai Hospital of Chinese Academy of Medical Sciences and the mass kept increasing (2008.09 35 mm×46 mm,2010.12 41 mm×35 mm, 2014.07 68 mm×45 mm). In September 2020, our patient began to suffer from paroxysmal precordial distending pain, which could be relieved for 5min each time, but no attention was paid to it. In November 2020, emotion induced distending pain in the precordial region with persistent and unrelenting pain. As a result, he visited Fuwai Hospital in November 2020 and received cardiac contrast-enhanced MRI, which showed a space-occupying lesion in the right atrioventricular groove (108 mm×95 mm), which was significantly larger than that on December 23, 2010. With a small amount of pericardial effusion, the local coronary vein and right coronary artery significantly expanded, which was closely related to the mass. Considering the possibility of hemangioma, the coronary artery showed no calcification and showed a right dominant pattern. No stenosis was seen in the anterior descending and circumflex branches, and a small amount of pericardial effusion. Coronary angiography showed that no meaningful stenosis was seen in the coronary artery, and the space-occupying lesion in the heart (supplied by the right crown). Later, she was admitted to Tumor Hospital of the Chinese Academy of Medical Sciences, Peking University Tumor Hospital, anzhen hospital, General Hospital of the People's Liberation Army, the Third Hospital of Peking University and other hospitals in Beijing, where she was unable to be treated.,TCM Diagnosis,　Xinji (Qi deficiency and blood stasis).,Western medicine diagnosis,　Cardiac tumor pericardial effusion.,Therapeutic methods,　The electrothermal acupuncture combined with filiform needling was performed on both sides of the back and abdomen using the methods of strengthening vital Qi and tonifying deficiency, promoting blood circulation and removing blood stasis. The acupoints of governor vessels were reused on the back (prone position), together with Jiaji (EX-B2) points of the bladder. The acupoints of the lung, spleen and stomach meridians were reused on the abdomen (supine position), together with the abdominal and recruitment acupoints. It was advocated that shu and recruitment acupoints were combined to balance the Yin and Yang of internal organs.,Clinical outcomes,　The patient insisted on the electrothermal acupuncture combined with filiform needling on both sides of the back and abdomen for 5 days a week. Since then, the symptoms of persistent distension and pain in the precordial region disappeared, and the atrial mass became smaller than before after reexamination. The patient's condition was stable and his quality of life was high.