• Title, Summary, Keyword: dysplasia

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Expression of c-fos Protein in Fibrous Dysplasia and Osteofibrous Dysplasia (섬유성 이형성증 및 골섬유성 이형성증에서의 c-fos 단백 발현)

  • Park, Hye-Rim;Park, Yong-Koo;Kim, Duck-Whan
    • The Journal of the Korean bone and joint tumor society
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    • v.5 no.4
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    • pp.216-220
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    • 1999
  • The purpose of this study was to evaluate the role of c-fos oncogenes in the development of fibrous dysplasia and osteofibrous dysplasia. The immunohistochemical expression of c-fos protein was evaluated in 15 cases of fibrous dysplasia and 8 cases of osteofibrous dysplasia. Ten cases of fibrous dysplasia were weakly positive with c-fos. Six cases of osteofibrous dysplasia were weakly positive and the remaining two cases were strongly positive. The overall expression of c-fos protein is weaker than high-grade osteosarcoma, thus the implication of c-fos protein is little in the development of these tumors. Fibrous dysplasia and osteofibrous dysplasia share some features of characteristic histology and c-fos expression.

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A Radiographic study of Fibro-osseous lesions of the jaw bones (악골 섬유성 골병소의 방사선학적 연구)

  • Kwon Kyung-Yun;Choi Karp-Shik
    • The Journal of Korean Academy of Maxillofacial Radiology
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    • v.28 no.1
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    • pp.27-36
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    • 1998
  • The purpose of this study was to obtain information on the clinical and radiographic features of the fibro-osseous lesions in the jaws. For this study, the author examined and analysed the clinical records and radiographs of 71 cases of 68 patients in fibrous dysplasia, 35 cases of ossifying fibroma and 30 cases of 16 patients of periapical cemental dysplasia diagnosed by clinical and radiographic or histopathological examinations. The obtained results were as followings: L Fibrous dysplasia occurred most frequently in the 2nd decade (30.0%), ossifying fibroma in the 3rd-4th decades, periapical cemental dysplasia in the 4th decade, and all of three lesions showed slight predilection in females. In most cases, chief complaints were painless facial swelling in fibrous dysplasia and ossifying fibroma, and periapical cemental dysplasia was found accidentally in radiographs. 2. Fibrous dysplasia was occurred more frequently in maxilla, ossifying fibroma in mandible and both lesions in premolar-molar area. Periapical cemental dysplasia was occurred most frequently in the mandibular anterior area. The size of fibrous dysplasia was larger than that of ossifying fibroma, and the shape of ossifying fibroma was more round and elliptical than fibrous dysplasia whose was fusiform. 3. Fibrous dysplasia was shown homogeneous radiopaque shadow of 57.6% and ossifying fibroma & periapical cemental dysplasia were shown mixed appearance of radiolucency and radiopacity shadows at 74.2%, 60.0%, respectively. 4. Fibrous dysplasia was entirely shown poorly defined at 87.7%, but ossifying fibroma & periapical cemental dysplasia were shown well outlined at 60.0%, 70.0%, respectively. 5. Cortical thinning and expansion were observed in fibrous dysplasia and ossifying fibroma, and severe in ossifying fibroma than fibrous dysplasia, and those signs were not seen in periapical cemental dysplasia. Loss of lamina dura was dominant in fibrous dysplasia and root resorption was dominant in ossifying fibroma. Displacement of mandibular canal and the degree of the increase of vertical dimension were alike in both lesions. Displacement of maxillary sinus or nasal cavity, thinning & expansion of the maxillary sinus were dominant in fibrous dysplasia. 6. Polyostotic fibrous dysplasia was occurred at 5.9%, Multiple periapical cemental dysplasia at 43.7%. Occurrence rate in the edentulous area of fibrous dysplasia and ossifying fibroma were 7.0%, 8.6%, respectively.

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The Diagnostic Accuracy of Endoscopic Biopsy for Gastric Dysplasia

  • Lee, Sung-Bae;Kang, Hye-Yun;Kim, Kwang-Il;Ahn, Dae-Ho
    • Journal of Gastric Cancer
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    • v.10 no.4
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    • pp.175-181
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    • 2010
  • Purpose: There is controversy over the treatment for low grade dysplasia, while resection is recommended for high grade dysplasia. But the concordance of the grade of dysplasia between pre- and post-resection is low because of sampling errors with endoscopic biopsy. We attempted to establish a clearer direction for the treatment of dysplasia by clarifying the discrepancy between the pre- and postresection diagnoses. Materials and Methods: We performed a retrospective review of 126 patients who had undergone resection with the diagnosis of dysplasia on biopsy at Bundang CHA Hospital from 1999 to 2009. Results: Seventy patients were diagnosed with low grade dysplasia and 56 patients were diagnosed with high grade dysplasia. Among the 33 patients who received gastrectomy with lymph node dissec-tion, 30 patients were revealed to have invasive cancers and 4 patients showed lymph node metastasis. Discordance between the diagnoses from biopsy and resection occurred in 55 patients (44%). There was no correlation on the comparative analysis between the size, location or gross type of lesion and the grade of dysplasia. Conclusions: The rate of discordance between the diagnoses of endoscopic biopsy and the post resection pathologic report was as high as 44%. Endoscopic mucosal resection was not sufficient for some patients who were diagnosed with dysplasia on biopsy due to the presence of lymph node metastasis. It is necessary to be prudent when determining the follow-up and treatment based solely on the result of the biopsy.

A RADIOGRAPHIC STUDY OF FIBRO-OSSEOUS LESIONS IN THE JAWS (악골의 섬유성골병소에 관한 X선학적 연구)

  • Lee Mee Kyung;Lee Sang Rae
    • The Journal of Korean Academy of Maxillofacial Radiology
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    • v.21 no.2
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    • pp.261-273
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    • 1991
  • This study was undertaken to document and better defined this condition to help clarify this clinical and radiographical appearances by the analysis of clinical and radiographical features of fibro-osseous lesions in the jaws. A study was made of a series of 128 cases with fibro-osseous lesions. The obtained results were as follows. 1. Fibrous dysplasia of the jaws occurred with equal predilection for males and females. But the females occurred in 68% of cemento-ossifying fibroma and 75% of periapical cemental dysplasia. 2. 43% of fibrous dysplasia and 32% of cemento-ossifying fibroma occurred in the 2nd decades and 33% of periapical cemental dysplasia in 5th decades. 3. 62% of fibrous dysplasia occurred in the maxilla, 73% of cemento-ossifying fibroma in mandible, 90% of periapical cemental dysplasia in mandible. 4. 98% of fibrous dysplasia occurred in premolar-molar region, 77% of cemento-ossifying fibroma in molar region, 68% of periapical cemental dysplasia in incisor region. 5. In serial radiographic features, mature stage were 55% of fibrous dysplasia, 45% of cemento-ossifying fibroma, 59% of periapical cemental dysplasia. 6. 87% of fibrous dysplasia had monostotic lesion, 67% of periapical cemental dysplasia had multiple lesions. 7. In fibrous dysplasia and cemento-ossifying fibroma, migration of tooth occurred in 61.7% and 36.4%, retention of tooth occurred in 4.3% and 9.1%, loss of lamina dura occurred in 6.4% and 9.1%, and root resorption had not occurred in fibrous dysplasia, but occurred in 18% of cemento-ossifying fibroma, displacement of mandibular canal occurred in 14.9% and 31.8%.

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A CLINICOPATHOLOGIC STUDY ON FIBROUS DYSPLASIA OF THE MAXILLOFACIAL REGIONS (악안면 부위에 발생한 섬유성 골이형성증에 대한 임상조직병리학적 연구)

  • PYO, Sung-Woon;Nam, Il-Woo
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.14 no.1_2
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    • pp.124-134
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    • 1992
  • Fibrous dysplasia is a benign pathologic condition of bone in which fibrous tissue gradually expands and replaces normal bone into fibro-osseous lesion. It is a primary developmental abnormality of bone-forming mesenchyme in origin. This study shows clinical history, radiological and histopathological feature of fibrous dysplasia with the intention of establishing correct diagnosis, treatment plan and evaluation of prognosis. This paper reviews and summarizes the materials from 57 fibrous dysplasias submitted to the Department of Oral and Maxillofacial Surgery in College of Dentistry, Seoul National University. Conclusions obtained were as following : 1. Fibrous dysplasia developed mainly in teenagers and shows female predeliction. 2. Fibrous dysplasia developed much on the maxilla 3. Monostotic fibrous dysplasia was most popular form. 4. Main symptom of fibrous dysplasia was painless swelling. 5. Radiological feature of fibrous dysplasia was ground-glass appearance, 6. Histopathological feature of fibrous dysplasia was irregular immature bony trabeculae(woven bone). 7. Treatment of fibrous dysplasia was mainly conservative contouring surgery.

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The Study of Dysplasic Grades to Digital Image Analyzer (화상분석기를 이용한 정도별 이형성증에 대한 연구)

  • Joo, Kyung-Woong
    • Korean Journal of Clinical Laboratory Science
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    • v.38 no.3
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    • pp.203-207
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    • 2006
  • The purpose of this study was to develop discriminant analysis models for predicting cervical normal/dysplasia case diagnoses using cytometric features derived from the digital image analysis of cell monolayers. The database consisted of 19 cases diagnosed either as normal (n=5), moderate dysplasia (n=7), severe dysplasia (n=7) on monolayer preparations. We studied the nuclear and cytoplasmic characteristics of cells in the normal, moderate dysplasia and severe dysplasia on cervical samples. The morphometric parameters selected for the analysis were nuclear/cytoplasmic ratio and the nuclear variations measured by image analysis on normal and precancerous lesions of cervical smears; several shape factors; area; perimeter; maximal, minimal and equivalent circle diameters. The results showed that the dysplasia samples exhibited changes in both cellular and nuclear form and size but lacked substantial differences in the tumor grades. The coefficient of nuclear variation is as follows to normal cell $21.8{\pm}3.2%$, moderate dysplasia $33.5{\pm}6.1%$, severe dysplasia $27.7{\pm}5.8$ of cervical smears.

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Lichenoid Dysplasia Misdiagnosed as Oral Lichen Planus: 3-Year Follow-up Case Report

  • Shim, Young-Joo;Yoon, Jung-Hoon
    • Journal of Oral Medicine and Pain
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    • v.40 no.4
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    • pp.163-168
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    • 2015
  • Lichenoid dysplasia is a lichenoid features with epithelial dysplasia clinically and histopathologically similar to oral lichen planus. It can be clinically mistaken for oral lichen planus, but has histopathologic features of dysplasia and a true malignant predisposition. The clinician should be able to differentiate between oral lichen planus and lichenoid dysplasia for the proper management. We experienced a 75-year-old man with erosive, erythematous lesion on the left buccal mucosa previously diagnosed as oral lichen planus. He underwent surgical excision and the final histopathological result confirmed it to be lichenoid dysplasia with massive candidal infection. We report this case with a review of the related literature.

Radiographic Differential Diagnosis between the Fibrous Dysplasia and the Ossifying Fibroma (섬유성이형성증과 골화섬유종의 방사선학적 감별진단)

  • Choi Karp-Shik
    • The Journal of Korean Academy of Maxillofacial Radiology
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    • v.29 no.1
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    • pp.55-63
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    • 1999
  • The author observed and compared the radiographic features of 49 cases of the fibrous dysplasia and 14 cases of the ossifying fibroma in the osteoblastic or mature stage radiologically and histopathologically. The obtained results were as follows: 1. Fibrous dysplasia occurred most frequently in the 2nd decade, but ossifying fibroma in the 3rd and 4th decades, and both lesions occurred with slight predilection in females. 2. In most cases, chief complaints were painless facial swelling. And 61.1% of fibrous dysplasia occurred in the maxilla, 92.9% of ossifying fibroma in the mandible, and most of these lesions occurred in the premolar-molar region. 3. In the mandibular lesions, ossifying fibroma was shown more oval and round shape. but fibrous dysplasia was shown fusiform shape. 4. Fibrous dysplasia was shown homogeneously distributed. complete radiopaque shadow at 63%, and ossifying fibroma was shown concentric. mixed appearance of radiolucent and radiopaque shadow at 92.9%. 5. Fibrous dysplasia was entirely shown poorly outlined and blended to normal surrounding bone, but ossifying fibroma was shown well-defined border. 6. Cortical thinning and expansion were observed in these lesions. but degree of cortical expansion was more severe in ossifying fibroma than fibrous dysplasia. 7. Loss of lamina dura. tooth displacement. and displacement of mandibular canal were observed in both lesions. but root resorption was observed in ossifying fibroma only.

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Clinical Study on 3 Cases of Cervical Dysplasia (자궁경부 이형성증 진단을 받은 환자 3례에 대한 임상적 고찰)

  • Park, Chan-Soo;Jung, Hyuk-Sang;Sohn, Young-Joo
    • The Journal of Korean Obstetrics and Gynecology
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    • v.21 no.4
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    • pp.237-246
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    • 2008
  • Purpose: Recently people who want to treatment of cervical dysplasia by Traditional Korean Medicine (TKM) were increased. The purpose of these studies are to confirm the clinical effectiveness of TKM treatment to clinical symptoms of the patients who diagnosed as cervical dysplasia. Methods: The patients who diagnosed as cervical dysplasia, had elytrorrhagia, leukorrhea, dysmenorrhea et al. The patients were treated by TKM such as herb medication and acupuncture therapy. Results: After the oriental medical treatment. the clinical symptoms such as elytrorrhagia, leukorrhea, dysmenorrhea were improved. Conclusion: To treatment and management of cervical dysplasia, we were based on improvement of clinical symptoms. And we used TKM to the clinical symptoms of patients with cervical dysplasia, in result clinical symptoms of cervical dysplasia were improved. TKM is expected to have positive effects on clinical symptoms of cervical dysplasia.

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LICHENOID DYSPLASIA ASSOCIATED WITH MULTIPLE LEUKOPLAKIA : A CASE REPORT (다발성 백반증을 동반한 태선양 이형성증)

  • Ahn, Shin-Young;Moon, Chul-Woong;Yoon, Jung-Hoon;Kim, Su-Gwan
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.27 no.6
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    • pp.565-569
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    • 2005
  • Lichenoid dysplasia is a lesion similar to oral lichen planus with epithelial dysplasia. It can be clinically mistaken for oral lichen planus, but has histologic features of dysplasia and a true malignant predisposition. It is not a variant or transitional form of lichen planus but, instead, represents a distinct entity that has a true potential for malignant transformation. In addition to abnormal epithelial maturation and cytology, lichenoid dysplasia exhibits other histologic features that separate it from oral lichen planus. Lichenoid dysplasia and lichen planus share many clinical and microscopic features, leading to the frequent misdiagnosis of unrecognized lichenoid dysplasia as lichen planus. We experienced a case of lichenoid dysplasia in the oral mucosa. We treated this patient with surgical excision. The patient has now been followed for two months. It is important to recognize this precancerous condition and inspect the excision site and remaining oral mucosa during long-term follow-up.