AIMS: The epidemiology of thyroid cancers in goitre endemic zones has not been recently reviewed, and changes being currently reported have been from studies in non-endemic areas. The aims of this study were to present the clinical pattern of thyroid malignancy in a goitre endemic area and identify recent changes, if any. METHODS: The study was conducted at Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Nigeria between January 1983 and December 1993. Records of patients with nodular goitres treated with thyroidectomy were reviewed, and the clinical features, laboratory parameters, treatment, outcome and follow-up of histologically-proven malignant cases were studied. RESULTS: Thirty-six of 279 (12.9%) patients, aged 13-85 years (mean)=43.7+/-14.7 years), carried malignant goitres, and most (80%) were young or middle-aged women. Of the well-differentiated cancers, follicular type was the most prevalent, being six- and 12-fold as frequent as papillary and medullary cancers (69%vs 11% and 5.6%), respectively. Lymphoma accounted for 5.6%, fibrosarcoma, 5.6% and anaplastic, 2.8%. No relationship was demonstrable between cancer type, duration of goitre and age at diagnosis (r=0.06 and 0.17, respectively). CONCLUSIONS: Thyroid cancers afflict comparatively young women in our environment, and follicular cancer remains the predominant type, partly as a result of persisting dietary iodine deficiency. Copyright Harcourt Publishers Limited.
AIMS: The epidemiology of thyroid cancers in goitre endemic zones has not been recently reviewed, and changes being currently reported have been from studies in non-endemic areas. The aims of this study were to present the clinical pattern of thyroid malignancy in a goitre endemic area and identify recent changes, if any. METHODS: The study was conducted at Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Nigeria between January 1983 and December 1993. Records of patients with nodular goitres treated with thyroidectomy were reviewed, and the clinical features, laboratory parameters, treatment, outcome and follow-up of histologically-proven malignant cases were studied. RESULTS: Thirty-six of 279 (12.9%) patients, aged 13-85 years (mean)=43.7+/-14.7 years), carried malignant goitres, and most (80%) were young or middle-aged women. Of the well-differentiated cancers, follicular type was the most prevalent, being six- and 12-fold as frequent as papillary and medullary cancers (69%vs 11% and 5.6%), respectively. Lymphoma accounted for 5.6%, fibrosarcoma, 5.6% and anaplastic, 2.8%. No relationship was demonstrable between cancer type, duration of goitre and age at diagnosis (r=0.06 and 0.17, respectively). CONCLUSIONS:Thyroid cancers afflict comparatively young women in our environment, and follicular cancer remains the predominant type, partly as a result of persisting dietary iodine deficiency. Copyright Harcourt Publishers Limited.
Authors: Louise Davies; Luc G T Morris; Megan Haymart; Amy Y Chen; David Goldenberg; John Morris; Jennifer B Ogilvie; David J Terris; James Netterville; Richard J Wong; Gregory Randolph Journal: Endocr Pract Date: 2015-06 Impact factor: 3.443
Authors: B Dijkstra; R S Prichard; A Lee; L M Kelly; P P A Smyth; T Crotty; E W McDermott; A D K Hill; N O'Higgins Journal: Ir J Med Sci Date: 2007-05-08 Impact factor: 1.568