■多小叶骨瘤或多小叶骨软骨肉瘤是颅骨中扁平骨的肿瘤。骨多小叶肿瘤的治疗选择是局部积极的手术切除。
■一只11岁的雌性可卡犬,有右眼眼球移位3个月的历史。眼科检查显示眼球突出,第三眼睑突出,眼压OD(眼右眼;右眼)略有增加。计算机断层扫描(CT)显示右侧球后有肿块效应,上颌骨,颧骨,和时间区域。观察右侧颧骨和颞骨溶解。体格检查,血液学,血液化学结果在正常范围内。进行了骨弓摘除术。手术期间,在球后区域OD中发现了一个坚固的2瓣肿块(4.8×3.7和1.6×1.4cm)粘附在下颌骨上。组织病理学发现骨的多小叶肿瘤。对剩余的肿瘤进行了CT成像,发现了右侧球后肿块的延伸部分。在第0、7、14、21、28和35天进行6次6Gy分次放疗。在1个月和4个月的跟踪检查中,质量逐渐减小。放疗后8个月和11个月,质量并不显著。在所有随访期间至1年和8个月的随访期间,狗都保持警觉。
■分割放疗结合切除术和部分眼眶切除术延长了患者的生存期,并减少了剩余肿瘤的大小,以治疗该犬的眼眶多小叶骨肿瘤至少1年零8个月。
UNASSIGNED: Multilobular tumor of bone or multilobular osteochondrosarcoma is a tumor of flat bone in the skull. The treatment of choice for a multilobular tumor of bone is local aggressive surgical excision.
UNASSIGNED: A female Cocker Spaniel dog aged 11 years presented with a history of globe displacement of the right eye for 3 months. Ophthalmic examination revealed exophthalmos, third eyelid protrusion, and slightly increased intraocular pressure OD (oculus dexter; right eye). Computed tomography (CT) revealed a mass effect in the right retrobulbar, maxilla, zygomatic, and temporal areas. Right zygomatic and temporal bone lysis were observed. Physical examination, hematology, and blood chemistry results were within normal limits.
Exenteration with zygomatic arch removal was performed. During surgery, a firm 2-lobed mass (4.8 × 3.7 and 1.6 × 1.4 cm) adhered to the mandible was found in the retrobulbar area OD. Histopathological findings revealed a multilobular tumor of bone. CT imaging was performed for the remaining tumor and an extended part of the right retrobulbar mass was found. Hypofractioned radiotherapy with 6 fractions of 6 Gy was performed on days 0, 7, 14, 21, 28, and 35. At 1-month and 4-month follow-up inspections, the mass gradually reduced in size. At 8 months and 11 months after radiotherapy, the mass was unremarkable. The dog was alert during all follow-up periods to 1 year and 8 months after hypofractioned radiotherapy combined with
exenteration and partial orbitectomy.
UNASSIGNED: Hypofractioned radiotherapy combined with
exenteration and partial orbitectomy extended the patient\'s survival and decreased the size of the remaining tumor for the management of orbital multilobular tumor of bone in this dog for at least 1 year and 8 months.