A 1-yr-old girl presented with a salivary discharge at the facial skin of her right cheek. CT sialography was done and a sialo-cutaneous fistula from an accessory parotid gland was diagnosed (). She also had a skin tag on the tragus of the right ear. At that time, surgical excision was considered at a later age. At the age of five, she visited the outpatient clinic for definitive treatment. The clinical examination demonstrated a 1 mm-sized opening located at the facial skin 1 cm lateral to the angle of mouth. The salivary discharge was clear and serous. The salivary flow rate was calculated by a cotton ball test. It revealed that the flow from the accessory gland was about 10% of the total flow of a parotid gland. According to our previous experience (), fistulectomy was scheduled, but aesthetic considerations for the young girl made the surgical plan change to more conservative management. Under general anesthesia, the 6 cm-long fistula tract was identified with a lacrimal probe. Intraoperative ultrasonography was done to demarcate the accessory parotid gland. Although the accessory gland was too small to be clearly identified, 16 IU of botulinum toxin was injected to the accessory gland under ultrasound guidance. After thin adhesive film was attached on the buccal skin around the fistula opening to prevent spillage of corrosive agent from unwanted skin injury, about 2 mL of 40% TCA solution was injected into the tract with a small metal suction tip (). Thirty seconds later, all the solution was removed with suction and squeezing. This procedure of TCA cauterization was repeated twice. There was no immediate complication postoperatively.\nAfter several days, a tensely inflated sialocele formed and the opening was found to be completely closed up. Aspiration was done with long subcutaneous tunneling from behind so as not to make an iatrogenic sialo-cutaneous fistula. After 4 sessions of weekly aspiration, the sialocele did not recur. During one year follow-up, there was no more salivary leakage or sialocele. Moreover, the aesthetic result was very satisfactory.
A 79-year-old woman visited our emergency department with three stab wounds in her right preauricular area (). We found no abnormal finding during the retrograde irrigation test for Stensen duct that was performed in the ampulla. However, facial expressions such as the area around the mouth and blinking of the eyes were unnatural, so the possibility of facial nerve injury could not be ruled out. An emergency exploration was performed under general anesthesia in the operating room. To minimize additional injuries and conduct a more reliable exploration of the injured areas, the wounds were connected to expose all the injured areas. Even though more dead space was created due to this procedure, we definitely found injuries in the parotid glands and an injury at a marginal mandible branch of the facial nerve (). After neurorrhaphy for the facial nerve injury, the wound was sutured, and a closed 100-mL Jackson-Pratt drainage tube was inserted (). The injured parotid gland area was not wide in size and the tissue was soft, so it was not repaired.\nAs postoperative management, oral administration of 10 mg nortriptyline once daily for 3 weeks was started from the day of surgery to prevent secondary complication, such as infection due to persistent salivation. During treatment with nortriptyline, the patient complained of mouth dryness, which showed that the drug had an anticholinergic action. The drainage tube was removed on the 6th day after the surgery, when 5 mL per day or less drainage was collected for 3 days in a row. Due to the possibility of partial wound dehiscence, delayed stitch out was planned, and all sutures were removed on the 10th postoperative day. Complete and unremarkable wound healing was observed, and no complications were reported 7 weeks postoperatively ().