非骨化性纤维瘤的X线和CT诊断

目的研究非骨化性纤维瘤的X线和CT表现，比较X线和CT对非骨化性纤维瘤的诊断价值。方法回顾分析经手术及病理证实的12例非骨化性纤维瘤的临床及影像学资料，术前12例患者均经X线和CT检查，分析其影像学与病理的相关性。结果肿瘤位于长骨干骺端，股骨4例，胫骨8例。X线和CT分为皮质型和髓腔型，皮质型9例，髓腔型3例。手术证实为非骨化性纤维瘤。结论非骨化性纤维瘤的影像学表现具有一定特征性，X线和CT是诊断非骨化性纤维瘤非常有用的方法。     

鼻咽-翼腭窝-颞下窝血管纤维瘤翼腭窝入路摘除术

经翼腭窝入路手术方法摘除鼻咽-翼腭窝-颞下窝血管纤维瘤,此法可满意显露鼻咽、翼腭窝和颞下窝三个区域,将侵入上述三区的瘤体整体取出。这一入路无颞颌关节、面神经、中耳和咽鼓管损伤的缺点,手术时可窥及肿瘤与窝周诸壁的关系,可避免损及中颅底、鞍旁、海绵窦和破裂孔、颈动脉等重要构造。手术共4例,随访3～5a未复发。     

Interventricular Fibroma and Cystic Renal Dysplasia in a Newborn

A newborn twin presented with a cardiac tumor; at autopsy microcystic dysplasia was found in the kidneys. The histology of the renal cysts were not unlike those found in many multisystem syndromes (e.g., Schwartz-Jampel, Ehlers-Danlos, and Jeune's asphyxiating thoracic dystrophy). No evidence of tuberous sclerosis or other phakomatoses were found. This case may alert other observers to carefully look for cystic dysplasia of the kidneys or other organs in association with cardiac tumors.     

Fibrous histiocytoma (fibroxanthoma) of a cervical vertebra

A patient with a benign appearing intraosseous fibrous lesion of the cervical vertebra is presented. The lesion had the histologic features of non-ossifying fibroma (metaphyseal fibrous defect). Because of its atypical location and unusual radiologic appearance, the lesion was diagnosed as a fibrous histiocytoma, a tumor whose histology is similar to non-ossifying fibroma. The literature was reviewed for similar cases located outside the metaphysis of the long bones. Support is given for designating such lesions as fibrous histiocytomas rather than non-ossifying fibromas.     

Histopathology of benign gingival fibroblastic lesions with special reference to odontogenic fibroma and recurrence rates

Abstract – Histopathologic and clinical reexamination of 84 cases diagnosed as peripheral odontogenic fibroma showed 56 cases with no evidence of recurrence, 12 with possible single recurrence and 16 with verified single or multiple recurrences. An effort was made to correlate the histopathologic appearance with the recurrence rate. Three different types of lesions could be identified: fibrous epulis, calcifying fibroblastic granuloma and various types of "fibroma", all showing a high recurrence rate. Our findings show that neither histomorphology nor recurrence rate can be used as a definite criterium to separate neoplasia such as odontogenic fibroma from other gingival fibrous overgrowths.     

口腔巨细胞性纤维瘤和刺激性纤维瘤

作者复查了１９８５～１９８８年间美国马里兰大学牙科学院口腔病理系活检材料，观察了口腔巨细胞性纤维瘤和刺激性纤维瘤。结果发现，二者分别占同期活检标本的１．８％和７．４％，发病年龄有明显的规律性。发病部位前者以牙龈受累最多见，后者以颊部最多见，病理改变：前者以病变中出现细胞体较大的梭形细胞及星状细胞为病理学诊断依据，时常可见双核或多核巨细胞。刺激性纤维瘤中富有胶原纤维和成熟纤维细胞，小血管周围见有少量慢性炎性细胞浸润。     

Ossifying fibroma of the mandible and maxilla: review of 18 cases

A clinical, radiographic, histologic and follow up study of 18 cases of ossifying fibroma involving the mandible and maxilla was performed. Differences in behavior and management according to age, location, radiographic appearance and histopathology were not evident. A wide range of microscopic findings within and between cases was evident, while the radiographic finding consisting of sharp delineation was consistent in all cases. The presence or absence of cementum or cementum-like material and various types of formed elements was likewise of little clinical significance. Finally, a potential source of the neoplastic cell from the periodontal apparatus may help explain the range of histologic findings.     

Electron microscopic findings in four cases of nasopharyngeal fibroma

Summary Light and electron microscopic investigations of four cases of juvenile nasopharyngeal fibroma revealed characteristic structures; a fibrous stroma, an inclination to hyalinisation and formation of scar like tissue, a lacunar thin walled vascular component, large numbers of mast cells and of fibroblasts. The tumor fibroblasts contained different nuclear bodies and particles. There existed five different types of more or less complex spherical bodies. The previously described nuclear electron dense particles with an electron lucent halo could be divided into four groups measuring 60, 90, 150 and 300 nm in diameter.In addition to the previously described ultrastructural properties of the tumors, the nuclei of the tumor fibroblasts were found to contain virus like particles. These particles were less electron dense, measuring 40 to 55 nm in diameter and arranged in groups throughout the nucleoplasm; they were different from chromatin condensations and from perichromatin granules. The structure and the size of the smallest particles was not comparable with the other nuclear inclusions.     

Drei Fälle eines Riesenzellfibroms des Stimmbandes

Summary Three cases of giant cell fibroma of the vocal cord are reported. The histological and cytological features of the extirpated tissue confirm the benigne character of these tumors.