(A) Horizontal CT showed the increased density of the left inferior orbital wall with uniform density and obvious edge. The edge of the tumor was regular, without dissolution and destruction; (B) Coronal CT showed high-density shadow of the infraorbital wall, protruding into the orbit and squeezing the eyeball; (C) A small amount of fibrous connective tissue and bone trabeculae were seen under the microscope (HE, ×5).
图2 骨内血管瘤CT图像和病理学表现
Figure 2 CT images and pathological findings of intraosseous hemangioma
(A) CT image of patient 1: The swelling growth tumor shadow of the right cheekbone is palisade like and honeycomb like mixed density shadow. The internal density is uneven, and thick bone ridge shadow can be seen; (B) Pathological results of patient 1: Vascular structures (thick and thin arrows) with different lumen sizes can be seen between trabeculae (dotted arrows); (C) CT image of patient 2: right orbital bone mass, mixed high and low density; (D) Pathological results of case 2: The thin arrow points to periosteum; the dotted arrow points to osteoid matrix, and the thick arrow points to the spongy cavernous hemangioma structure between trabeculae (HE, ×5).
图3 骨样骨瘤眼眶CT图像和病理学表现
Figure 3 CT images and pathological findings with the orbit of osteoid osteoma
(A) Mass mixed density shadow in the left ethmoid sinus mass, dense sclerotic bone cortex surrounding a radiolucent "tumor nest", and growing in the left orbit, with bone discontinuity in the left orbital wall. Peripheral bone sclerosis images with increased density, uniform density, obvious edge, no dissolution, and no destruction; (B) Pathological results showed that the tumor tissue was composed of bone cells and osteoid matrix, containing fibrous tissue and osteoid trabeculae. The arrow points to trabeculae (HE, ×5); (C) The solid line arrow points to osteoclasts and the dotted arrow points to osteoblasts (HE, ×40).
图4 骨化纤维瘤眼眶CT图像和病理学表现
Figure 4 CT images and pathological results of ossifying fibroma
(A) Patient 1: Coronal CT shows irregular shape and well-defined mass in the left orbital bone, showing heterogeneous medium and high-density soft tissue mass with bone components, which are closely related to bone wall defect; (B) Patient 2: Coronal CT shows irregular, well-defined mass in the right frontal bone, heterogeneous medium and high-density soft tissue mass with high-density shadow in the mass; (C) A large number of Langerhans cells can be seen (solid arrow) with diffuse eosinophils and a small number of small lymphocytes infiltration (HE, ×40).
图6 尤文肉瘤眼眶CT图像和病理学表现
Figure 6 CT images and pathological findings of Ewing’s sarcoma
(A) Horizontal CT showed osteolysis and destruction of the zygomatic process of the right maxilla, and the lesion involved the great wing of sphenoid bone backward; (B) Coronal CT showed that the lesion extended upward to the frontal bone and downward to the wall of maxillary sinus, with radial bone needle formation. The tumor penetrated through the bone cortex to form a soft tissue density mass, which bulged into the orbit and pushed the eyeball and orbital tissue to the medial side; (C, D) Small round cell tumor (solid arrow) with round nucleus, fine chromatin, and small nucleoli (HE, ×40); (D) Bone trabeculae between tumor cells (dotted arrow) (HE, ×5).
表1 发生于眶骨的占位性病变影像及病理结果
Table 1 Imaging and pathological results of space occupying lesions in orbital b
1. 天津市临床重点学科建设项目 (TJLCZDXK7006)。 This work was supported by Tianjin Clinical Key Discipline
Construction Project, China (TJLCZDXK7006).
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