Thymoma, November 25, 2004

Thymoma, November 25, 2004

Thymoma is a common tumor of the anterior superior mediastinum, with two-thirds being benign and one-third malignant. There is no significant difference in incidence between males and females, and it predominantly affects middle-aged individuals aged 30–50. Diagnosis relies primarily on chest X-rays and CT scans, often initially presenting without symptoms. Tumors can compress adjacent organs, leading to symptoms: compression of the trachea may cause coughing; compression of the sympathetic nerves may produce Horner’s syndrome; compression of the recurrent laryngeal nerve may result in hoarseness; compression of the superior vena cava may lead to superior vena cava syndrome. Consequently, about half of cases result in myasthenia gravis, making treatment challenging. Surgical intervention is the first-line approach, while radiotherapy and chemotherapy are necessary for malignant cases. Post-surgical patients often develop secondary myasthenia gravis, an autoimmune disorder caused by abnormalities in the neurotransmitter receptors at the neuromuscular junction. Hormonal therapy is effective but can lead to dependency; traditional Chinese medicine is generally the best option for treating myasthenia gravis.

A commonly used formula is Zhang Xichun’s Zhenwei Decoction: Astragalus root 20g, Angelica sinensis 10g, processed frankincense and myrrh each 6g, longan pulp 10g, Cornus officinalis 6g, raw dragon bone and oyster shell each 15g, deer antler glue 10g (melted), turtle plastron 20g. Decoct in water and take one dose daily.

Another option is Zhang Xichun’s Jiawei Shengxian Decoction: Astragalus root 30g, Cimicifuga heracleifolia 3g, Bupleurum chinense 10g, Anemarrhena asphodeloides 20g, Platycodon grandiflorus 20g, Glycyrrhiza 6g, Trichosanthes kirilowii 10g, Arctium lappa 6g, lotus seed pod 10g, and Mahonia bealei 15g. Decoct in water and take one dose daily.

The most commonly used chemotherapeutic agents include cyclophosphamide, 5-FU, hydroxyurea, and hormones.