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  • Title: Spontaneous cutaneous-parotid fistula of the cheek caused by sialolithiasis in a child: a case report.
    Author: Palomino L, Mouchon E, Nieto P, Gallois Y.
    Journal: Eur Arch Otorhinolaryngol; 2024 Sep 06; ():. PubMed ID: 39242409.
    Abstract:
    INTRODUCTION: Cheek fistulas of salivary origin in children are very rare, predominantly of congenital or traumatic origin but rarely caused by parotid sialolithiasis given its low prevalence in paediatric populations. CASE PRESENTATION: A 3-year-old child with no history other than substantial left-cheek swelling for 2 months was referred. We identified a cutaneous fistula with seropurulent discharge. At this time, we only observed mild inflammation of the left parotid duct papilla with no visible calculi. A first ultrasound scan only detected acute inflammation of the parotid duct that was treated with antibiotics. The discharge subsided but the fistula persisted. Two more episodes of infection occurred at 6-month intervals that were both treated by antibiotics. After this second treatment, a second ultrasound scan showed dilatation of the left parotid duct upstream of the cheek fistula with the presence of a calcification. We performed sialoendoscopy under general anaesthesia 10 days later. Before introduction of the sialoendoscope, we noticed a whitish calculus within the papilla that was removed by intraoral incision and digital pressure alone. Sialoendoscopy went on to detect a dilated parotid duct that was highly inflamed and bled upon contact at the site of the cheek fistula. No other sialoliths were detected. The fistula had healed four months later without any recurrence of parotitis or discharge. CONCLUSION: Sialolithiasis should be considered for spontaneous cheek fistulas in children. Sialoendoscopic-assisted diagnosis and treatment can result in complete resolution of cutaneous-parotid fistulas without the need for more aggressive surgery.
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