Autonomously hyperfunctioning cystic nodule harbouring thyroid carcinoma - Case report and literature review.

INTRODUCTION: Hyperthyroidism is rarely associated with malignancy, but it cannot rule out thyroid cancer. Although there is published data describing this coexistence, thyroid carcinomas inside autonomously functioning nodules are uncommon. PRESENTATION OF CASE: A 49-year-old woman presented with a cervical mass, unexplained weight loss and anxiousness, sweating and insomnia. On physical examination, she had a palpable left thyroid nodule. Thyroid function tests showed suppressed TSH (<0,1 uUI/mL), thyroxine 1,44 ng/dL (normal range 0,70-1,48) and triiodothyronine 4,33 pg/mL (normal range 1,71-3,71). Ultrasound imaging revealed a left lobe, 4 cm partial cystic nodule. 99mTC thyroid scintigraphy showed a hyperfunctioning nodule with suppression of the remainder parenchyma. Fine-needle aspiration cytology was nondiagnostic (cystic fluid). The patient was started on thiamazole 5 mg daily with subsequent normalization of thyroid function, but she developed cervical foreign body sensation and a left hemithyroidectomy was performed. Histology showed a 4 cm cystic nodule with a follicular variant papillary carcinoma and the patient underwent completion thyroidectomy, followed by radio-iodine ablation. DISCUSSION: Published literature showed an increased prevalence of autonomously functioning nodules, harbouring thyroid carcinomas in adults. Papillary carcinoma is the most frequently described but the follicular variant is rare. CONCLUSION: Although rare, thyroid cancer is not definitively excluded in hyperthyroid patients and it should always be considered as differential diagnosis.

Primary thyroid lymphoma: A case report and review of the literature.

INTRODUCTION: A rapidly enlarging mass of the anterior compartment of the neck with compressive symptoms may represent, among other diagnosis, a neoplasm of the thyroid gland. PRESENTATION OF CASE: We describe the case of a 59-year-old woman referred to the endocrine surgical unit because of compressive cervical symptoms for 3 months. The cervical ultrasound revealed a sub-sternal goiter with heterogeneous echo structure and the fine-needle aspirating cytology was inconclusive. Given the large impact of symptoms on life quality, she was submitted to a total thyroidectomy. Histological examination of the surgical specimen revealed the presence of a Diffuse Large B Cell Lymphoma of the thyroid. DISCUSSION: Primary thyroid lymphomas are rare and there are few randomized studies for diagnostic and therapeutic guidance. New immunohistochemical and molecular techniques have improved the diagnostic accuracy with corebiopsy limiting the role of surgery. The treatment should first include the control of local disease with radiotherapy and/or surgery combined with chemotherapy to control obscure or disseminated disease. Palliative surgery may be needed to relieve airway compression symptoms. Under these circumstances, surgery should be performed by a specialized surgeon to decrease the associated morbidity. The prognosis of patients depends on the histological classification of the tumor and the stage of the disease. CONCLUSION: Due to the rarity of the disease, each case must be evaluated and treated individually, since there is not a consensual therapeutic approach.

Health technology assessment in Switzerland.

OBJECTIVES AND METHODS: To review Switzerland's mixed public and private healthcare system with regard to health technology assessment (HTA). RESULTS: In the past, remarkable work in HTA was done. Accomplishments include the following: (i) Switzerland became an early member of the International Network of Agencies for Health Technology Assessment. (ii) HTA has its legal bases in terms of effectiveness, appropriateness, and efficiency. (iii) The federal law allows the introduction of new technologies for a limited time for evaluation. (iv) A Swiss Network for Health Technology Assessment was established. In 2004, federal HTA activities moved from the Swiss Federal Office "of Social Security" to the one for "Public Health." The Office mainly mandates, manages, and coordinates evaluations attached to its prevention and intervention sections in the fields of AIDS, illegal drugs, and legal drugs. CONCLUSIONS: Because of the absence of a governmental institution assessing and reporting on new health technologies, private and for profit organizations became more important for the decision-making processes. In a regulated market, the implications may be crucial for the public health.