Biomedical subjects
Publications and source records attributed to R N Visweswara.
Xeroderma pigmentosum is an uncommon skin disorder associated with increased incidence of skin tumours and, less often, internal malignancies. Wilms' tumour is a common paediatric tumour, observed rarely in adults. Here we report the rare association of Xeroderma pigmentosum with adult Wilms' tumour in two Libyan females. To the best of our knowledge, this association has not been reported so far in the literature.
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From the time the first case of bronchial cleft carcinoma was reported over a century ago, very few cases have been reported which prove to be a cancer of primary branchial origin, while many metastatic cystic squamous cell carcinomas in the neck have been wrongly categorized as branchial carcinoma. Here, we describe a case of primary branchiogenic carcinoma in a 53 year old Libyan female showing a transformation of a benign epithelium into a malignant type. We further report that this transformation is perhaps brought about by an irregular radiotherapy to the head and neck region.
The ovary is a common site of both primary and secondary tumours. It may be the seat of simultaneous presence of more than one tumour. Often a combination of a malignant tumour is seen within the ovary harbouring a benign tumour. Simultaneous presence of two malignant tumours is rare. Here we describe a 43 year old woman presenting with a simultaneous metastatic adenocarcinoma (primary in colon) along with a papillary serous cystadenocarcinoma of the ovary.
In this study the frequency of primary bone tumours in the eastern part of Libya during a period of 10 years (1981 to 1990) is analysed. During this period 165 histologically proved primary bone tumours were seen. Out of these 165 tumours 40 were malignant and 125 were benign. Males were more frequently affected by the primary bone tumours. The second decade was the most common age of incidence for both benign and malignant tumours. The femur was the most common site. Comparison with similar studies from selected parts of the world indicated that the frequency of primary malignant bone tumours in Eastern Libya appears to be low.