The pathogenesis of thyroid carcinoma in Graves' goiter is still obscure and the methods for preoperative diagnosis of such carcinomas is not well established. We studied the incidence, clinical features, and pathological findings of thyroid carcinoma in Graves' goiter. From October, 1983 to September, 1985, a total of 739 patients with Graves' disease underwent subtotal thyroidectomy at Ito Hospital, Tokyo. All of these patients underwent roentgenography of the neck before surgery. Thyroid carcinoma was revealed in the resected specimen in 15 (2.0%) of 739 patients. During the same period, another 4 patients underwent surgery for thyroid carcinoma who had had Graves' disease previously and these 4 cases were included in the present study. The incidence of thyroid carcinoma associated with Graves' disease was 2.6% (19 of 743 cases). Histological examination revealed 15 papillary and 4 follicular carcinomas. The size of the carcinoma foci was 13.8 +/- 15.6 mm in diameter (range: 1-60 mm), 10 (52.6%) foci being 10 mm or greater. Invasive growth into the surrounding thyroid tissue was predominant and regional lymph node metastasis was noted in all 6 patients who underwent cervical dissection. Preoperative roentgenography revealed calcification in 5 (26.3%) of 19 cases. Our present study indicates that thyroid carcinoma in Graves' goiter may show markedly invasive growth with lymph node metastasis even though the primary tumor is small in size, and it is suggested that the detection of calcification may serve as a part of the diagnostic measures when the carcinoma focus is difficult to palpate in the diffusely-enlarged Graves' goiter.
We analyzed the results of ethanol sclerotherapy in 61 patients with cystic thyroid lesions which recurred after aspiration. Cytologic study showed all of the lesions to be benign. The patients were followed clinically and ultrasonically 1 month and 6 or more months after treatment. If the cystic lesions recurred, repeated treatment was offered. During the follow-up, 36 (59.0%) patients experienced no recurrence after the initial treatment and 5 (8.2%) patients received treatments 2 or more additional times. In 44 (72.1%) of the 61 patients, the cystic lesion almost disappeared or decreased in size, but in 17 (27.9%) patients it did not decrease. Four patients underwent surgery after the ethanol sclerotherapy. Although no severe complications were observed, there were complaints of slight pain in 12 patients, severe pain in 1 patient, and a drunken feeling in 1 patient. We consider instillation of ethanol into recurrent cystic lesions of the thyroid to be a simple, safe, economical, and effective treatment.
Familial occurrence of differentiated, nonmedullary thyroid carcinoma in 23 patients from 11 families is reported. Five patients were male and 18 were female. The familial relationship of patients was “parent and child” in 12 cases from 6 families, and “siblings” in 11 cases from 5 families. Carcinoma of other organs was noted in other members in 8 families. Histological examination revealed 18 papillary, 2 follicular, and 2 anaplastic carcinomas (the 2 anaplastic carcinomas were considered to be transformed from preexisting differentiated carcinoma). In 1 case, the histological type was unknown. The average diameter of the primary lesion was 29.9 mm. Cervical lymph node metastasis was found in 77.8% and local recurrence in 28.6% of the patients. Solid and invasive growth was dominant. On HLA typing, phenotypes of B7 and DR1 were significantly redominant in familial patients compared with nonfamilial patients and normal Japanese. Moreover, the haplotype of B7‐Cw7‐DR1 was observed in 5 of 13 patients tested. It is suggested from these observations that some types of differentiated, nonmedullary thyroid carcinoma may show familial occurrence and that they may have common factors with regard to the genetic and immunologic basis of the disease.
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