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Case 1: An 11-year-old boy presented to the casualty department complaining of pain over the tip of his nose and difficulty in nasal breathing following a fall on the ground that happened 2 days ago. He also reported a short-lasting, self-limited episode of epistaxis from his right nostril. Clinical examination revealed a reddish, fluctuant swelling that appeared to derive from the roof of the right nasal vestibule, without any septal or nasal bone lesions or deformity. An alar cartilage haematoma was suspected, and the patient was brought to the theatre (figure 1A,B). Under general anaesthesia, a marginal incision was performed, just at the caudal border of the alar cartilage, and the haematoma was thoroughly drained. A 3 cm rectangular piece of a sterile glove was inserted midway through the incision as a drain, and the vestibule was packed with an antibiotic-soaked gauze (figure 1C,D). The drain was removed on postoperative day 2, and the packing one day later.
Case 2: A 3 year-old boy presented to the casualty department with a history of nasal injury following a fall from his riding toy on the previous day. There was moderate swelling over his nasal bridge, and anterior rhinoscopy showed a fluctuant, blueish swelling just beneath the left alar cartilage area (figure 2A,B). The rest of the examination was otherwise unremarkable. Under general anaesthesia, an incision in the skin of the left vestibule was made that was deepened until the undersurface of the alar cartilage. The haematoma was evacuated, and the vestibule was packed with an antibiotic-soaked gauze for 2 days (figure 2C,D).
Both cases received postoperatively oral antibiotics for a week. Both had an uneventful recovery with no complications and no residual deformity.
A subperichondrial haematoma arises from the extravasation of blood beneath an intact perichondrium. Cartilage, being an avascular tissue, relies on the diffusion of oxygen and nutrients from the perichondrium capillaries for its survival. Accumulation of stagnant blood between perichondrium and cartilage disassembles this physiological unity and deprives the cartilage of adequate glucose and oxygen supply, leading, ultimately, to tissue necrosis and resorption and to subsequent deformity and loss of function.1
Although subperichondrial haematomas of the nasal septum comprise a well-recognised, relatively common and potentially dreadful consequence of mid-facial injuries, their counterparts in the region of the major alar cartilage are much rarer and unwonted. However, they may cause equally dire aftereffects, such as cosmetic deformities and compromised nasal breathing resulting from loss of support.1–3 Another primary concern of an unaddressed haematoma would be the grievous septic intracranial complications that may ensue from successive abscess formation.4
Only five cases of nasal alar cartilage haematomas have been reported in the literature so far, most of which concern a paediatric population.2 3 5 The patients of this report are also children. This may suggest that children may be more susceptible to the formation of alar haematomas after minor head injuries. This assumption is in line with the remark of a heightened prevalence of septal haematomas in paediatric populations, presumably due to the structurally weaker cartilage and a loosely adherent mucoperichondrium.6 7
As they are extremely rare and unwonted, these haematomas may go unnoticed if the clinician does not systematically inspect the vestibular side of the alar cartilages in every case of, even minor, midfacial trauma.
If left untreated, consequences may be equally severe to nasal septal haematomas.
Early diagnosis and prompt treatment are of paramount importance. Timely drainage of the haematoma, in all likelihood, spared our patients serious septic complications and prolonged cosmetic or dysfunctional deformities.
Contributors VS was the primary attending surgeon and wrote the first draft. KP, SAF and GC reviewed and edited the draft and the images. All authors approved the final manuscript.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient consent for publication Parental/guardian consent obtained.
Provenance and peer review Not commissioned; externally peer reviewed.