Chylothorax after neck dissection for thyroid carcinomas: report of three cases

Area of Science:

• Thoracic Surgery
• Oncology
• Surgical Complications

Background:

• Neck dissection is a surgical procedure often used in the treatment of thyroid carcinoma.
• Chylothorax, the accumulation of lymphatic fluid in the chest cavity, is a rare but serious complication following neck dissections.
• The incidence of chylothorax after neck dissection may be underestimated due to asymptomatic presentations.

Observation:

• This report details three cases of chylothorax occurring after neck dissections for thyroid carcinoma.
• The authors suggest that the relatively high incidence in their cases may stem from the common assumption that patients are asymptomatic post-operatively.
• Routine chest X-ray or ultrasonography in the early postoperative period is proposed as a method to identify asymptomatic chylothorax, particularly when thoracic duct injury is suspected.

Findings:

• Chylothorax can occur as a complication of neck dissection, even in the absence of overt symptoms.
• Injury and ligation of the thoracic duct during surgery are identified as potential causes.
• The condition, when induced by thoracic duct ligation, may be transient and resolve spontaneously.

Implications:

• Early diagnostic imaging (chest X-ray, ultrasonography) should be considered in the postoperative management of patients undergoing neck dissection for thyroid cancer.
• Identifying and managing asymptomatic chylothorax can prevent potential complications.
• For chylothorax resulting from thoracic duct ligation, conservative management with short-term thoracic drainage appears to be an effective treatment strategy.