Detweiler David A, Johnson Lynelle R, Kass Philip H, Wisner Erik R
Veterinary Medical Teaching Hospital, University of California, Davis 95616, USA.
J Vet Intern Med. 2006 Sep-Oct;20(5):1080-4. doi: 10.1892/0891-6640(2006)20[1080:cteobe]2.0.co;2.
Sinonasal disease is common in cats; chronic inflammatory disease and neoplasia are diagnosed most frequently. Radiographic and computed tomographic (CT) findings in nasal disease have been reported, although involvement of other cranial structures has not been fully described to our knowledge.
We hypothesized that neoplastic or inflammatory obstruction of the auditory tube associated with sinonasal disease could result in CT evidence of effusive bulla disease in affected cats.
46 cats with sinonasal disease, 18 control cats.
CT images acquired in cats with (n = 46) and without (n = 18) sinonasal disease were reviewed for evidence of concurrent bulla effusion. CT findings of soft tissue or fluid opacity within the tympanic bulla or thickening of the bone of the bullae were considered evidence of effusive bulla disease.
The prevalence of bulla effusion in cats with sinonasal disease was 28% (13/46) and was significantly higher than that observed in cats without sinonasal disease (1/18, P = .043). CT findings that were found in association with effusive bulla disease included imaging features of sinusitis and nasopharyngeal disease. The most common neoplasm associated with bulla effusion was nasopharyngeal lymphoma. Bulla effusion was not observed in any cat with nasal carcinoma.
Findings of this study suggest that auditory canal dysfunction may play a larger role in feline sinonasal disease than was previously recognized. The implications of these findings for management of cats with chronic inflammatory or neoplastic sinonasal disease require further investigation.
鼻窦疾病在猫中很常见；慢性炎症性疾病和肿瘤最为常见。尽管据我们所知，其他颅骨结构的受累情况尚未得到充分描述，但已有关于鼻窦疾病的放射学和计算机断层扫描（CT）结果的报道。
我们假设与鼻窦疾病相关的咽鼓管肿瘤性或炎性阻塞可能导致受影响猫的鼓室积液性鼓泡疾病的CT证据。
46只患有鼻窦疾病的猫，18只对照猫。
回顾了患有（n = 46）和未患有（n = 18）鼻窦疾病的猫的CT图像，以寻找并发鼓室积液的证据。鼓室内软组织或液体混浊或鼓泡骨增厚的CT表现被视为鼓室积液性鼓泡疾病的证据。
患有鼻窦疾病的猫鼓室积液的患病率为28%（13/46），明显高于未患有鼻窦疾病的猫（1/18，P = 0.043）。与鼓室积液性鼓泡疾病相关的CT表现包括鼻窦炎和鼻咽疾病的影像学特征。与鼓室积液相关的最常见肿瘤是鼻咽淋巴瘤。在任何患有鼻癌的猫中均未观察到鼓室积液。
本研究结果表明，耳道功能障碍在猫鼻窦疾病中可能比以前认识到的发挥更大作用。这些发现对慢性炎症性或肿瘤性鼻窦疾病猫的管理的影响需要进一步研究。
