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 32-year-old male patient presented with the complaints of watery discharge from a wound over the left parotid region for the past 8 months. The fistula had started 2 weeks after he had undergone superficial parotidectomy for pleomorphic adenoma. The patient was diagnosed as a case of postparotidectomy parotid fistula and initially treated conservatively with regular pressure dressing, anticholinergics, and antibiotics, but symptoms were not relieved. Subsequently, the patient had also developed features of Frey's syndrome 7 months after the surgery.\nThe patient was diagnosed with simultaneous parotid fistula and Frey's syndrome []. Forty units of BTA was injected subcutaneously in the parotid region. There were no complications such as facial nerve injury and facial artery or masseter muscle trauma. The parotid fistula got resolved within 4 days with complete closure of the fistulous opening and gustatory sweating (Frey's syndrome) ceased after 6 days []. There was no recurrence later, after a follow-up period of 1 year.