Intranasal epidermoid cyst causing upper airway obstruction in three brachycephalic dogs

Abstract

This case report describes three brachycephalic dogs with intranasal epidermoid cysts that were causing additional upper airway obstruction. Although epidermoid cysts have been described in several locations in dogs, to the authors' knowledge intranasal epidermoid cysts have not been previously reported. All dogs had mucopurulent to haemorrhagic nasal discharge. Magnetic resonance imaging of the head revealed the presence of unilateral or bilateral intranasal cystic lesions obstructing the nasal cavities partially or completely, with atrophy of the ipsilateral nasal turbinates. The cystic lesions were surgically excised in all dogs using a modified lateral alveolar mucosal approach to the affected nasal cavity. Aerobic, anaerobic and fungal culture of the cystic contents were negative and histology of the excised tissue was consistent with a benign intranasal epidermoid cyst in each dog. Upper airway obstruction was clinically improved in two dogs.

Acute respiratory distress associated with a nasopharyngeal foreign body in a seven‐month‐old French bulldog

“…Nasopharyngeal polyps, abnormal nasopharyngeal turbinates and elongated soft palate are common findings in dogs with BOAS (Oechtering and others 2007, Ginn and others 2008, Murgia and others 2014). The present study's patient is of a typical breed predisposed to this syndrome and has bilateral stenotic nares; BOAS was thus an important differential diagnosis.…”

“…Reported causes of nasopharyngeal disorders in the literature include nasopharyngeal stenosis/obstruction secondary to a choanal mass (neoplastic or inflammatory in origin), abscess, abnormal turbinates, foreign body, nasopharyngitis, soft palate granuloma and elongated soft palate (Hunt and others 2002, Billen and others 2006). Nasopharyngeal polyps, abnormal nasopharyngeal turbinates and elongated soft palate are common findings in dogs with BOAS (Oechtering and others 2007, Ginn and others 2008, Murgia and others 2014). The present study's patient is of a typical breed predisposed to this syndrome and has bilateral stenotic nares; BOAS was thus an important differential diagnosis.…”

Complete nasal obstruction caused by a dentigerous cyst in a 4‐year‐old pug

“…Based on the clinical findings and diagnostic imaging, the main differential diagnoses included peri‐apical abscess formation, various types of cysts (e.g., a dentigerous cyst, odontogenic keratocyst, an intranasal epidermoid cyst, radicular cyst or lateral periodontal cyst; depending on exact location), 7 a pseudocyst (e.g., solitary or aneurismal bone cysts), a nasal polyp or neoplasia (e.g., mucoepidermoid carcinoma) 8 …”

Nasopharyngeale Zyste des respiratorischen Epithels bei einem 9 Jahre alten Yorkshire Terrier

“…In der Literatur gibt es zwei Fallberichte, die epidermale Zysten in der Nasenhöhle (drei brachyzephale Hunde im Alter zwischen 3 und 4 Jahren) bzw. des Nasopharynx (ein 12-jähriger Zwergpudel) beschreiben (12,23). Die Diagnose wird anhand des klinischen Bildes und histopathologisch gestellt.…”