Alexander Amy B, Griffin Lynn, Johnston Matthew S
J Avian Med Surg. 2017 Mar;31(1):39-46. doi: 10.1647/2015-116.
An adult male blue and gold macaw (Ara ararauna) was presented for evaluation of a right periorbital mass. Results of diagnostic tests, including periorbital ultrasound, fine-needle aspirate, and cytologic examination, confirmed a diagnosis of periocular lymphoma. Radiographs were suggestive of disseminated disease but because of concerns about the patient's quality of life, localized radiation therapy to address the periorbital disease was pursued. Coarse-fractionated radiation therapy was initiated, and the mass regressed rapidly during the 3-week course of treatment. The macaw tolerated the treatments well, maintained vision in the affected eye, and activity level and appetite improved. Three months after treatment was completed, the bird died. Necropsy revealed T-cell-rich B-cell-infiltrative lymphoma of the spleen, liver, and kidneys, with some residual neoplastic cells found in the right periorbital region. This case demonstrates a radiation therapy protocol that reduced a tumor mass in a localized treatment of periorbital lymphoma in a macaw.
一只成年雄性蓝黄金刚鹦鹉（Ara ararauna）因右眶周肿物前来评估。包括眶周超声、细针穿刺抽吸和细胞学检查在内的诊断性检查结果确诊为眼周淋巴瘤。X线片提示有播散性疾病，但出于对患者生活质量的考虑，决定采用局部放射治疗来处理眶周疾病。开始进行粗分割放射治疗，在3周的治疗过程中肿物迅速消退。这只金刚鹦鹉对治疗耐受良好，患眼保持视力，活动水平和食欲有所改善。治疗完成3个月后，这只鸟死亡。尸检显示脾脏、肝脏和肾脏有富含T细胞的B细胞浸润性淋巴瘤，在右眶周区域发现了一些残留的肿瘤细胞。本病例展示了一种放射治疗方案，该方案在局部治疗金刚鹦鹉眶周淋巴瘤时使肿瘤体积缩小。
