Ameloblastoma developing from dentigerous cyst.
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Biomedical subjects
Publications and source records attributed to C Ramulu.
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A case of malignant melanoma of the oral cavity is presented. The very high frequency of squamous cell carcinoma of the palate in Visakhapatnam, India, is compared to the rarity of malignant melanoma, even though pigmentation of the oral cavity is quite common in this geographical region.
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Reverse smoking of chuttas seems to have no significance for the development of cancer of the hypopharynx, esophagus, larynx and nasopharynx. The conventional chutta smoker runs a slight risk of developing hypopharyngeal cancer. Other smoking and chewing habits do not seem to play any role in our area as these habits are very uncommon.
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Cytology smears from 325 oral carcinomas were studied; the false-negative rate was 37%. Cancers of the floor of mouth exfoliated most malignant cells and those of the gingiva exofoliated the least. There was no correlation between the histologic grading, location, sex of the patient, and the result of the cytology smear. Oral exfoliative cytology should only be used as an adjunctive measure and is not a substitute for biopsy.
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