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Congenital Sternoclavicular Sinus-Case Series of a Rare Lower Neck Deformity
Yan Huang1, Mimi Xu1, Xiaoli Sheng1
1Guangdong Provincial People's Hospital Affiliated to Southern Medical University, Guangdong Academy of Medical Sciences, Guangzhou, China.
Objectives:
We encountered patients with a congenital cutaneous sinus tract in the sternoclavicular joint region, which we designate as "congenital sternoclavicular sinus (CSCS)." The aim of this investigation is to enhance recognition of this subtle yet noteworthy entity and develop standardized protocols for its management.
Patients And Methods:
Between 2013 and 2023, 172 patients, including 78 males and 94 females, were referred to our institution for the management of CSCS. Clinical charts were retrospectively reviewed.
Results:
The majority of patients (60.5%) were young children below 3 years of age, with only six adult patients and a median age of 27.5 months. The left side was implicated in 157 cases (91.3%). In 146 cases (84.9%), a faint skin streak was noted above the orifice. Yet, no pharyngeal sinus tracts were detected, either through barium swallow studies or direct laryngoscopy. All skin lesions featured a diminutive orifice near the sternoclavicular joint, with the tract extending deeply into the subcutaneous tissue and terminating blindly, short of entering the joint, after a distance of 10 mm (ranging from 5 to 21 mm). Histopathological analysis revealed that the epithelial lining predominantly consisted of stratified squamous epithelium (87.8%), with ciliated columnar epithelium accounting for the remaining 12.2%.
Conclusions:
CSCS, though infrequent, presents with distinctive pathological and clinical features. The condition predominantly affects the left sternoclavicular joint region, with the notable "skin streak sign" aiding in diagnosis. We considered CSCS as one disease entity of branchial arch anomalies. Complete surgical excision offers a definitive cure.
Level Of Evidence:
4 Laryngoscope, 134:4402-4408, 2024.
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