Cases reported "Thyroid Neoplasms"

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1/481. Severe thyrotoxicosis due to hyperfunctioning liver metastasis from follicular carcinoma: treatment with (131)I and interstitial laser ablation.

    liver metastases from differentiated thyroid tumors are unusual clinical findings, and are only rarely hyperfunctioning. We report a case of thyrotoxicosis caused by a huge and surgically unresectable liver metastasis from follicular thyroid cancer, unresponsive to treatment with large doses of thionamides. To avoid the hazardous side effects of (131)I treatment in a severely thyrotoxic patient, a preliminary debulking of the liver mass was performed by means of percutaneous interstitial laser photocoagulation. Three treatments (total energy delivery: 7200 J) were performed under ultrasound guidance, with no serious complications, during a 2-week period. One month later, serum thyroid hormones had decreased, general condition was improved, and magnetic resonance evaluation revealed large and well-defined areas of necrosis of metastatic tissue. During the following 10 months, the patient underwent 3 radioiodine treatments. Eighteen months after diagnosis, thyroid hormones were within normal levels, liver mass decreased, and the clinical condition markedly improved. The combination of percutaneous interstitial laser photocoagulation treatment and radioiodine therapy made possible the effective management of a hyperfunctioning and surgically untreatable liver metastasis from thyroid follicular carcinoma, avoiding the side effects of (131)I therapy in a thyrotoxic patient and increasing the effectiveness of radioiodine-induced neoplastic tissue ablation.
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keywords = metastasis
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2/481. Parasitic nodule of the thyroid in a patient with Graves' disease.

    We report a case of a parasitic nodule of the thyroid in a patient with Graves' disease, which mimicked a lymph node metastasis from a primary occult thyroid carcinoma. The patient was a 67-year-old Japanese woman with a past history of subtotal thyroidectomy for Graves' disease, who was referred to our hospital because of a right cervical mass. A lymph node-like lesion measuring 1.5 cm in diameter was palpable, distinct from the remnant of the right thyroid lobe. Thyroid scintigraphy using 123I-Na revealed a hot lesion at the upper lateral portion of the right thyroid lobe, and this was resected. Microscopically, the mass showed thyroid follicles with lymphocytic infiltration and lymphoid follicles. Clear ground glass nuclei, nuclear grooving and intranuclear inclusions were not observed. No morphological evidence of the lymph node was found in the mass by reticulin staining. Parasitic nodules of the thyroid in patients with Graves' disease may mimic a metastatic carcinoma of the thyroid.
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keywords = metastasis
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3/481. Dendritic cell sarcoma of the thyroid.

    BACKGROUND: Follicular dendritic cell sarcoma (FDCS) arises from nonlymphatic antigen-presenting cells found in lymph node B-cell follicles. This extremely rare tumor, which usually arises in lymph nodes, does occur in extranodal head and neck sites such as the tonsil and soft palate. methods: A retrospective review of the patient followed at the University of Pittsburgh Medical Center from 1993 to the present was performed. CONCLUSIONS: This is the first reported case of an FDCS of the thyroid. A review of the literature provides useful information to aid in detection, treatment, and outcome of this unusual soft tissue malignancy.
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keywords = lymphatic
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4/481. Successful surgical treatment of a solitary parapharyngeal metastasis from thyroid cancer, using the mandibular swing-transcervical approach: report of a case.

    A 72-year-old man presented with a right parapharyngeal mass, 4 cm in diameter, which was subsequently diagnosed as a metastasis originating from papillary carcinoma of the thyroid gland. The parapharyngeal tumor was successfully removed by the mandibular swing-transcervical approach with pharyngeal reconstruction, performed using a buccal mucosal island flap based on the facial artery. His postoperative course was uneventful, and the preoperative clinical symptoms such as dysphagia and headaches completely resolved after surgery.
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keywords = metastasis
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5/481. Thyroid lung metastasis diagnosed 47 years after thyroidectomy.

    A 75-year-old woman underwent excision of a middle lobe lung nodule that contained a separate, isolated focus of metastatic papillary thyroid carcinoma. A thyroid lobectomy for papillary cancer had been performed 47 years earlier. This interval is believed to be the longest time from initial diagnosis to identification of distant lung metastasis reported. The pertinent published reports are reviewed and methods of surveillance discussed.
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keywords = metastasis
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6/481. Metastasis of thyroid carcinoma to the mandible. Case report.

    Metastatic tumours to the jaw bones are uncommon. The incidence of jaw bone metastasis is difficult to assess accurately since the usual method to determine the distribution of a metastatic tumour has been by a radiographic skeletal survey in which the jaws are rarely included. At times, metastatic lesions of the orofacial region may be the first evidence of dissemination of a known tumour from its primary site. A case of metastatic follicular carcinoma of the thyroid to the mandible is presented. The present case emphasizes the importance of considering metastasis in the differential diagnosis of a radiolucent lesion in the mandible in a patient with a history of any malignant disease.
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7/481. Cribriform-morular variant of papillary carcinoma: a distinctive variant representing the sporadic counterpart of familial adenomatous polyposis-associated thyroid carcinoma?

    We describe herein four cases of an unusual sporadic thyroid tumor that shares the morphologic features of a distinctive follicular cell neoplasm previously proposed as a feasible indicator of familial adenomatous polyposis. We also review five other similar cases reported in the literature. All of the nine patients were young women, aged 16 to 30 years. Grossly, the neoplasms measured 1.5 to 5.6 cm; they were solid and solitary, except one case, which showed two tumor nodules, one in each lobe. Histologically, the lesions were encapsulated, and they exhibited an intricate blending of cribriform, follicular, papillary, trabecular, and solid patterns of growth, with morular (squamoid) areas. Cribriform structures were prominent, being formed by anastomosing bars and arches of cells in the absence of intervening fibrovascular stroma. Follicular areas were usually devoid of colloid, and the papillae were lined by columnar cells. There were focal areas of trabecular arrangement reminiscent of hyalinizing trabecular adenoma. The tumor cells were cuboidal or tall, with frequent nuclear pseudostratification and abundant eosinophilic-to-oxyphilic cytoplasm. The nuclei were usually hyperchromatic, but nuclear grooves, pale or clear nuclei, and intranuclear cytoplasmic inclusions were variably present. Morules with peculiar nuclear clearing caused by biotin accumulation were scattered in the tumors. Vascular and/or capsular invasion were noted in all of the cases except one, and lymph node metastasis was found in two cases. Immunohistochemical stains showed reactivity for thyroglobulin, epithelial membrane antigen, cytokeratins (including 34betaE12), vimentin, estrogen and progesterone receptors, bcl-2, and Rb proteins. Follow-up in seven cases showed that all of the patients were alive with no evidence of disease at 1 to 13 years after diagnosis. Thus, the behavior of this variant seems to be similar to that of conventional papillary carcinoma Because of the distinctive histologic features, we propose naming this tumor the cribriform-morular variant of papillary carcinoma.
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keywords = metastasis
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8/481. Hemorrhagic cerebellar metastasis from papillary thyroid carcinoma.

    Papillary thyroid carcinoma has a low incidence of distant metastases. brain metastasis is extremely rare with a frequency of 0.1-1.3%. In the present series, the rate was 1.5%, only two cases had cerebral metastases in 136 patients with papillary thyroid carcinoma from January 1988 to April 1998. Cerebellar metastasis is even rarer, and solitary cerebellar metastasis has not been reported to the best of our knowledge. Two cases of papillary thyroid carcinoma with cerebellar metastases presenting as tumor hemorrhage are reported. In one patient, the lesion was in the bilateral cerebellar hemispheres with obstructive hydrocephalus. After operation, the patient had an uneventful course with recovery of her consciousness. In the other, the solitary lesion was in the left cerebellar hemisphere without obstructive hydrocephalus. After surgical treatment, the patient had a smooth course with resolution of his neurological deficit. It shows the importance of surgery in the management of a hemorrhagic cerebellar metastasis from papillary thyroid carcinoma, not only in reducing acute aggravating cerebral symptoms, but also in prolonging survival time.
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keywords = metastasis
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9/481. Cytologic diagnosis of a solitary brain metastasis from papillary carcinoma of the thyroid. A case report.

    BACKGROUND: Papillary carcinoma of the thyroid metastasizes to the brain in rare instances. In published series and case reports of metastatic papillary thyroid carcinoma, diagnosis of central nervous system (CNS) metastases has been determined by histologic methods. We present a case of papillary carcinoma metastatic to brain diagnosed by cytologic methods. CASE: A 43-year-old female, initially diagnosed at age 12 with papillary carcinoma of the thyroid metastatic to regional lymph nodes and lung, presented with head aches of increasing frequency and severity. A computed tomography scan confirmed a 1-cm nodule in the right inferior frontal lobe of the brain. For clinical reasons, the patient was followed with serial imaging for five years. At age 48 there was significant progression of the CNS disease, and the patient underwent stereotactic biopsy with drainage of cyst fluid. Cytologic examination of the cyst fluid and immunocytochemical studies confirmed the typical features of papillary thyroid carcinoma, including papillary clusters of cells with finely granular chromatin, micronucleoli, nuclear grooves and an associated psammoma body. CONCLUSION: Neurocytology is a useful technique in the examination of cystic lesions of the brain and may be the sole technique for determination of diagnosis.
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10/481. US and CT findings of multicentric leiomyosarcomatosis.

    This article presents a case of leiomyosarcomatosis with widespread lesions involving the soft tissues and the most unlikely organs such as thyroid and salivary glands, pancreas, ligamentum teres, bladder wall, and bones without lymph node or distant metastasis. The CT and US findings of this rare phenomenon are discussed with regard to the literature.
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ranking = 0.16666666666667
keywords = metastasis
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