摘要:

Immunoperoxidase staining for a variety of antigens was performed on 15 cases of granular cell myoblastoma occurring within the oral tissues. All tumours gave intense intracytoplasmic granular staining for a CEA‐related antigen with one rabbit antiserum to CEA (Dakopatts) whereas all were negative with a sheep antiserum to CEA (Seward). None of the tumours were positive for lysozymo, αlantitrypsin or cathepsin B whereas 12 lesions gave a granular reaction for cathepsin D. All granular cells showed a weak reaction for actin in contrast to the strong cytoplasmic staining found in smooth and striated muscle and muscle derived tumou

ISSN:0904-2512    

DOI:10.1111/j.1600-0714.1982.tb00176.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY

摘要:

Benign tumors of smooth muscle origin are rare in the oral cavity. This paper reviews 67 cases from the literature and six previously unpublished cases of oral leiomyoma. Tongue, hard palate and buccal mucosa are the most common sites of this lesion and the vascular leiomyoma or angiomyoma is the predominant histologic type.

ISSN:0904-2512    

DOI:10.1111/j.1600-0714.1982.tb00177.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY

摘要:

Occlusal interferences on right upper molars in rats produced ultrastructural changes in the calcification of ipsilateral condylar cartilage. This was characterized by premature appearance of apatite crystals within extracellular matrix vesicles present in the proliferative cell zone. The normal proliferative cell zone in the rat condyle manifested noncalcifying vesicles. The zone of calcification in rats with an occlusal splint revealed longitudinal calcifying fronts in the vicinity of the chondrocytes. These fronts were composed of haphazardly distributed apatite crystals. These ultrastructural alterations support the generally accepted view that mechanical stimuli induce changes in the process of primary mineralization.

ISSN:0904-2512    

DOI:10.1111/j.1600-0714.1982.tb00178.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY

摘要:

In a collection of parotid gland tumors the presence of different antigens was studied by immuno‐histochemical methods. The series was composed of different tumors: adeno‐ and cystadenocarcinomas, adenoid‐cystic carcinomas, salivary duct carcinomas, mucoepidermoid tumors, squamous cell carcinomas and anaplastic carcinomas.The following substances were studied:1Substances normally present in salivary glands like lysozyme and lactoferrin.2Oncofetal antigens: earcinoembryonic antigen (CEA) and alpha‐feloprotcin (AFP).3Different classes of intermediate‐sized filaments: prekeratin and vimentin. The presence of lactoferrin and carcinoembryonic antigen could be demonstrated in the glandular differentiated tumors, whereas the squamous cell carcinomas, although CEA positive, were lactoferrin negative. The anaplastic carcinomas were negative for lactoferrin and CEA. Lysozyme and AFP could not be demonstrated in the tumors of our material.Mucoepidermoid tumors and squamous cell carcinomas were clearly positive for prekeratin filaments whereas the stromal part showed vimentin filaments in the cytoplasm of fibroblasls. These antigens provide a useful tool to distinguish between the epithelial and mesenchym

ISSN:0904-2512    

DOI:10.1111/j.1600-0714.1982.tb00179.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY

摘要:

The oral lesions in 50 habitual snuff‐dippers were graded on a four‐point scale. The patients' tobacco and drinking habits were studied by means of a questionnaire. From each patient a biopsy was taken for histomorphological and histochemical analysis. A correlation between snuff habits and the clinical degrees was found, as well as between the snuff habits and certain superficial and deeply located cell changes. The incidence of keralinized lesions, sialadenitis and slight dysplasia (based on subjective evaluation under a light microscope) was higher than previously reported. Presence of dysplastic changes could not be predicted by means of the parameters which characterise the snuff habit or from the clinical grade. The histomorphological and histochemical results were interpreted as showing that the mucosa react to snuff inducing hyperplasia in the basal cell layers. In the surface layer indications of lethal damage were found. The overall stromal reaction to snuff was weak. However, the salivary glands and excretory ducts exhibited degenerative changes which were found to be more severe than the pathological changes in the surface epithel

ISSN:0904-2512    

DOI:10.1111/j.1600-0714.1982.tb00180.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY

摘要:

Nine cases of CEOT are reported. There are seven intra‐osseous and two extra‐osseous tumors. All but one occurred in the mandible. The age range was 20 to 64 years; averaging 34.2 years. There were 7 females and 2 males. Radiographically, they appeared either as monocystic or polycystic translucent lesions with radiopaque spots or masses. Embedded teeth were seen in six cases. Microscopically, four different patterns are described. No recurrence has been found post‐operatively within 2–14 years of follow‐up study.The nature of the reddish homogeneous material, the histogenesis of the tumor and the treatment are briefly

ISSN:0904-2512    

DOI:10.1111/j.1600-0714.1982.tb00181.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY

摘要:

Books reviewed in this article:Color Atlas of Oral Cancers, A. Burkhardt and R. MaerkerA Guide to Dental Radiography, by Rita A. Mason

ISSN:0904-2512    

DOI:10.1111/j.1600-0714.1982.tb00182.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY

ISSN:0904-2512    

DOI:10.1111/j.1600-0714.1982.tb00183.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY