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J J Pindborg

Publications and source records attributed to J J Pindborg.

At least 55 records · Page 3Linked to original sources
PubMed1989

An epidemiologic assessment of cancer risk in oral precancerous lesions in India with special reference to nodular leukoplakia.

A cohort of 12,212 tobacco users was followed up annually to assess malignant potential of oral precancerous lesions in the Ernakulam district in Kerala, India. A total of 19 new oral cancers were diagnosed over a period of 8 years, and 15 (79%) of these arose from some preexisting precancerous lesion or condition. Nodular leukoplakia showed highest rate of malignant transformation (16% per year) as six of 13 nodular leukoplakia underwent malignant transformation over a mean follow-up period of 2.8 years. The relative risk (3243.2) compared with individuals with tobacco habits but without any precancerous oral lesion was also the highest for nodular leukoplakia. In addition, nodular leukoplakia was associated with submucous fibrosis in two patients, which progressed to oral cancer and was the clinical diagnosis for four lesions that turned out to be malignant on histopathologic examination. Nodular appearance was noted in two other precursor lesions as well. Thus, 14 of 19 oral cancers (74%) were either preceded by nodular leukoplakia and with lesions showing a distinct nodular appearance, or had the clinical appearance of nodular leukoplakia.

Adult↗
PubMed1989

Hairy leucoplakia.

Explore the source record for details and available documents.

Acquired Immunodeficiency Syndrome↗
PubMed1989

Classification of oral lesions associated with HIV infection.

This article proposes a classification for oral lesions associated with HIV infection. The lesions can be classified into those with fungal, bacterial, or viral origin whereas other subgroups include neoplasms, neurologic disturbances, and lesions of unknown cause. This proposal is neither final nor exhaustive and is forwarded as a basis for epidemiologic surveys.

Acquired Immunodeficiency Syndrome↗
PubMed1989

Central papillary atrophy of the tongue among bidi smokers in India: a 10-year study of 182 lesions.

The occurrence of central papillary atrophy of the tongue among tobacco users, its clinical characteristics and the long term behavior in relation to changes in tobacco use was studied in 182 individuals in Ernakulam district, Kerala, India. Almost all (98%) lesions occurred among bidi smokers. Clinically, about 31% occurred in combination with bidi smoking associated lesions such as palatal erythema (14%), leukoplakia (8%) or both (3%). Histologic evaluation in 12 biopsies using single PAS stained sections showed candidal hyphae in 67%. A 10-yr follow-up (mean: 6.7 yr) of the 182 lesions showed that the regression was highest (87%) among those who stopped their smoking habit and persistence among those who did not reduce or stop their smoking habits. The findings from this study confirm a strong link between bidi smoking and central papillary atrophy of the tongue in rural Indian populations.

Adolescent↗
PubMed1989

Low prevalence of oral mucosal lesions in HIV-1 seropositive African women.

In Nairobi (Kenya) 334 women prostitutes of whom 80.5% were HIV-1 positive, were examined for oral mucosal lesions; 15.6% of seropositive, and 4.6% of seronegative, women had oral mucosal lesions, predominantly oral candidiasis. In the seropositives, 8.6% had erythematous, 1.1% had hyperplastic candidiasis, and 0.4% had hairly leukoplakia as the only oral lesions; 0.4% had a combination of erythematous and hyperplastic candidiasis, and 1.5% had combinations of pseudomembranous and erythematous candidiasis in the presence of hairly leukoplakia. Of the 211 seropositive women for whom we knew the first date on which a positive serologic test was obtained, the likelihood of developing an oral mucosal lesion was found to be dependent on the duration of seropositivity. The low incidence of oral mucosal lesions in this population may be due to the relatively recent acquisition of HIV-1 infection.

Adolescent↗
PubMed1989

[Global aspects of the epidemiology of oral cancer].

On the basis of IARC's Cancer in five contents (vol. V) an analysis has been made of the occurrence of oral cancer on a global basis. The highest rates for oral cancer (cancer of the vermillion border and the oral cavity) were found in Bas-Rhin in France, São Paulo in Brasil and in New Foundland in Canada. India comes in as number four. The differences between men and women are emphasized, and so is the difference between people with a white skin and those with a dark skin. In the latter groups cancer of the vermillion border is rare.

Global Health↗
PubMed1989

[Intraoral cancer: 100 consecutive cases].

One hundred patients (43 women and 57 men) with intraoral squamous cell carcinoma were questioned about their tobacco and drinking habits and then subjected to a thorough intraoral clinical examination. Twelve of the women did not use tobacco and did not have increased alcohol consumption. Only three of the men did not use tobacco, and 70% had daily consumption of alcohol. Where location of the carcinoma was concerned, the men had two and a half times as many carcinomas of the floor of mouth and inferior surface of tongue as the women. An astonishing finding was that 15% of the patients did not have subjective symptoms even if the tumour was more than 4 cm in diameter. On the basis of information obtained from the patients, 31% had been referred after a considerable delay. It is suggested that more information is required among physicians and dentists concerning the early diagnosis of intraoral malignancies.

Alcohol Drinking↗
PubMed1989

[Carcinoma in situ and carcinoma in patients with chronic oral candidiasis].

Chronic oral candidiasis is generally not considered a premalignant condition. We report on two patients with carcinoma in situ and carcinoma in the soft palate, probably preceded by long lasting chronic Candida infection. The first patient was a 56-year-old woman who suffered from disturbances in the calcium and potassium metabolism and high blood pressure due to a previous goiter operation during which the parathyroids had been removed. She also suffered from bronchitis and had been smoking 12 cigarettes a day for many decades. For several years she had had more or less constant symptoms from airway infections. Increasing symptoms from the throat had developed 2 years before referral and, in this period, she had been in constant antifungal therapy with no effect on the symptoms. Objectively, the entire soft palate, uvula and the palatoglossal arches were fiery red with whitish plaques which were not removable (Fig. 1). A biopsy revealed severe dysplasia and focal carcinoma in situ Subsequently, the lesion in the soft palate was partly removed by laser surgery followed by radiation therapy over a period of 2 month. One year later there was no signs of recurrence (Fig. 4). The second patient, a 53-year-old healthy woman, was referred because of difficulties in eating due to pain in the throat which had existed for 2 years. Without any effect on the symptoms, she had had antifungal therapy for 4 weeks. The patient had been smoking 15 cigarettes a day for many years. Objectively, an area with whitish plaques and nodules on an erythematous background was found (Fig. 5).(ABSTRACT TRUNCATED AT 250 WORDS)

Candidiasis, Oral↗
PubMed1989

Oral submucous fibrosis: a review.

Oral Submucous Fibrosis (SF) which is a relatively unknown disease in the early 60s is now widely regarded as a precancerous condition. In this paper, the author who is associated with the conception of this disease in India would, in addition to sharing his cumulative experience on this subject, review all the literature published since 1967 on Oral Submucous Fibrosis. An attempt is also made to unify current thoughts on the epidemiology, aetiology and clinical significance of this disease.

Humans↗
PubMed1988

Compliance following referral in the early detection of oral cancer and precancer in Sri Lanka.

An innovative approach for the early detection of oral cancer and precancer within the context of the primary health care system has been field tested in Sri Lanka. The overall compliance in accepting this particular PHC approach for cancer screening, as estimated by arrival at a referral centre manned by consultant staff, was 54.1%. Nearly 80% of those who turned up without needing an additional reminder, did so within the first 2 weeks of case finding. There was a variation in the degree of compliance depending on the primary health care worker who did the screening and referral. Compliance was greater when the screening area was nearer to the referral centre and in subjects who were diagnosed as having a more advanced stage of the disease. Certain practical considerations that contributed to noncompliance were identified. Postal reminders were seen to increase overall compliance by 10.9%.

Adult↗
PubMed1988

Course of various clinical forms of oral lichen planus. A prospective follow-up study of 611 patients.

The course of reticular, papular, bullous, plaque-type, atrophic and ulcerative lesions of oral lichen planus (OLP) was studied in 611 patients. Mean age of the patients was 53 years and two-thirds were women. The patients were followed for periods from 1 to 26 years (mean, 7.5 years). The various clinical types had somewhat different courses. Papular affections were seen mainly in the initial phase and had a transitory course. Ulcerative lesions, although more persistent, also generally showed a short-term course. The atrophic form was fluctuating with many remissions and new-established affections. The plaque-type was a more constant form, but also demonstrated many newly established affections. After a few years, many patients had persistent lesions that no longer included the affections most characteristic of OLP, i.e. the reticular and the papular form. Initial presence of papular affections was associated with ages below 50 and atrophic lesions with ages above 60. Plaque-type affections were seen with a significantly higher frequency among tobacco smokers at the onset of OLP. No other correlation was found between the initial presence, the remission and the development of the different clinical forms and various factors as age, sex, general diseases, medication and tobacco smoking. Treatment with topical steroid and/or antimycotics had no effect on the long-term course of the various clinical forms, and it had no persistent effect on symptoms related to OLP. Complete remission was seen in 17% of the patients, and it showed a reverse association with the initial presence of plaque-type affections. However, complete remission was associated with an initial presence of papular affections.(ABSTRACT TRUNCATED AT 250 WORDS)

Age Factors↗
PubMed1988

Malignant development of lichen planus-affected oral mucosa.

The present report describes malignant development in oral lichen planus (OLP) among 611 patients (409 F, 202 M) followed for periods from 1-26 years (mean: 7.5). During follow-up, 9 patients (1.5%), 8 women (1.9%) and 1 man (0.5%) developed oral squamous cell carcinomas (SCC) in areas of lichen planus lesions. The age of the patients at diagnosis of carcinoma ranged from 56-79 years (mean: 70.4) and the length of follow-up before malignant development ranged from 4.9-24 years (mean: 10.1). The estimated number expected to develop oral cancer in a sample of the general Danish population of similar size, age distribution and follow-up was 0.18 (0.11 F, 0.07 M) i.e., OLP cases showed a 50-fold increase (F = 70- M = 14-fold). The observed number of cancer cases was significantly higher than the estimated number (p less than 0.00001). Therefore, oral lichen planus fulfils the WHO criterion of a premalignant condition.

Aged↗
PubMed1988

Crystalline inclusions in epithelial cells of hairy leukoplakia: a new ultrastructural finding.

Hairy leukoplakia is often the first manifestation of an HIV infection. In the present study we have investigated the ultrastructural features of hairy leukoplakia in two HIV seropositive male homosexual patients. Ultrastructurally EBV particles were found in the upper prickle and keratinized epithelial cells, whereas papilloma virus particles were not found. Candida albicans were also seen in the keratinized layer. In addition two types of inclusions which have not previously been reported in hairy leukoplakia were commonly seen in the epithelial cells containing the EBV. The first was a crystalline microtubular structure which may take the form of several arrays. The second was an elongated multivesicular structure consisting of membrane-bound rounded vesicles embedded in a background of fine filaments. The vesicles were similar to the empty looking EBV particles and their mean diameter was 100 nm. Further investigations are needed to elucidate the exact nature of these structures and their relationship to the Epstein-Barr virus.

Cell Nucleus↗
PubMed1987

Oral hairy leukoplakia in three hemophiliacs with human immunodeficiency virus infection.

Oral manifestations in AIDS, in AIDS-related complex, and in patients with antibodies to the AIDS-causing virus, human immunodeficiency virus (HIV), have been described previously. One of these manifestations, oral hairy leukoplakia, is apparently specifically associated with HIV infection and has until recently been reported in homosexual men only. This article demonstrates, among European patients, the occurrence of hairy leukoplakia in three patients belonging to another risk group for AIDS, namely HIV-infected hemophiliacs.

Acquired Immunodeficiency Syndrome↗