Tham Y S, Low W K
Department of Otolaryngology, Singapore General Hospital.
Ann Acad Med Singap. 2005 May;34(4):335-8.
First branchial cleft anomalies account for less than 8% of all branchial abnormalities. Their rarity and diverse presentations have frequently led to misdiagnosis and inappropriate treatment. In a trend towards specialisation/subspecialisation, first branchial cleft duplication anomalies, with their varied clinical manifestations, may possibly present to an Otology, Head and Neck Surgery, Paediatric Otolaryngology, Maxillofacial or even a General Paediatric and General Surgery practice. There is a need to highlight the clinical features which can aid in accurate diagnosis.
CLINICAL PICTURE, TREATMENT AND OUTCOME: A case of an adult with Work Type 2 first branchial cleft duplication anomaly presenting as a collaural fistula is described. It first presented as a recurrent upper neck abscess in childhood. The diagnosis had previously been missed although the patient was able to clearly establish a correlation between digging of the ipsilateral ear and precipitation of the abscess. Instead of an epidermal web, a myringeal lesion in the form of a fibrous band-like was present. The lesion was completely excised with no further recurrence.
This case highlights useful diagnostic features both from the history and physical examination. The specialist/subspecialist must be aware of this condition and be mindful of its possible cross specialty/subspecialty symptoms and signs. Together with a good understanding of the regional embryology and anatomy, the lesion can be diagnosed early at initial presentation with the potential for best treatment outcomes.
第一鳃裂畸形在所有鳃裂异常中占比不到8%。其罕见性和多样的表现形式常常导致误诊和不恰当的治疗。在专业化/亚专业化的趋势下,具有多种临床表现的第一鳃裂重复畸形可能会出现在耳科学、头颈外科、小儿耳鼻咽喉科、颌面外科,甚至普通儿科和普通外科诊所。有必要强调有助于准确诊断的临床特征。
临床情况、治疗及结果:描述了一例成年患者,其为工作类型2的第一鳃裂重复畸形,表现为耳周瘘管。该畸形在儿童期首次表现为复发性上颈部脓肿。尽管患者能够明确同侧耳部挖掘与脓肿发作之间的关联,但之前仍漏诊。病变并非表皮条索,而是呈纤维带状的鼓膜病变。病变被完全切除,未再复发。
该病例突出了病史和体格检查中有用的诊断特征。专科医生/亚专科医生必须了解这种情况,并留意其可能出现的跨专科/亚专科症状和体征。结合对该区域胚胎学和解剖学的充分理解,在初次就诊时就能早期诊断病变,从而有可能获得最佳治疗效果。