• Tuberculosis and Respiratory Diseases
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• 제64권4호
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• pp.314-317
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• 2008

47세 남자가 내원 3주 전부터 발생한 호흡곤란 및 흉막성 흉통으로 입원하였다. 단순흉부촬영 및 흉부 CT 상 흉수 소견을 보여 시행한 흉강천자 결과, 림프구 우세 삼출액 소견을 보였으나, adenosine deaminase (ADA) 16.4 U/L로 감소하였고 세포진 검사 음성 소견을 보였다. 흉강경 검사 관찰되는 흉막의 다발성 결절에서 조직 생검 결과 전이성 유두모양 (papillary) 암으로 진단하였고, 원발 병소로 갑상샘 우엽의 미세결절 발견하여 갑상샘절제술을 시행했다. 갑상샘암은 내분비계의 악성 종양 중 가장 흔하며, 유두모양 갑상샘암이 가장 흔하다. 특징적으로 진행이 더디며 예후도 좋은 편으로, 원격 전이는 흔하지 않다. 전이성 악성 흉수는 드물게 보고되며, 대부분 원발 갑상샘암의 수술적 절제 등의 치료 후 경과 중에 재발하는 것으로 알려져 있다. 저자들은 특히 기존에 진단되지 않은 갑상샘암이, 흉수 형태로 처음 발현되는 경우를 경험하여 진단 및 치료하였기에 보고하는 바이다.

• Asian Pacific Journal of Cancer Prevention
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• 제16권8호
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• pp.3307-3312
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• 2015

The papillary patterned lesion of thyroid may be challenging with many diagnostic pitfalls. Tumor stroma plays an important part in the determination of the tumor phenotype. CD34 is thought to be involved in the modulation of cell adhesion and signal transduction as CD34(+) fibrocytes are potent antigen-presenting cells. Smooth muscle actin (SMA) positivity could be diagnostic for fibroblast activation during tumorigenesis. We aimed to examine the expression of CD34 and alphaSMA in the stroma of papillary thyroid hyperplasia, papillary thyroid carcinoma and papillary tumors of uncertain malignant potential in order to elucidate their possible differential distribution and roles. A total number of 54 cases with papillary thyroid lesions were studied by routine H&E staining, CD34 and ASMA immunostaining. ASMA was not expressed in benign papillary hyperplastic lesions while it was expressed in papillary carcinoma, indicating that tumors have modulated stroma. Although the stroma was not well developed in papillary lesions with equivocal features of uncertain potentiality, CD34 was notable in such cases with higher incidence in malignant cases. So ASMA as well as CD34 could predict neoplastic behavior, pointing to the importance of the stromal role. Differences between groups suggest that the presence of CD34 + stromal cells is an early event in carcinogensis and is associated with neoplasia, however ASMA+ cells are more likely to be associated with malignant behavior and metastatic potential adding additional tools to the light microscopic picture helping in diagnosis of problematic cases with H&E.

• 대한두경부종양학회지
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• 제10권2호
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• pp.192-199
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• 1994

Since 1950s, fine needle aspiration(FNA) cytology has become increasingly popular and numerous reports have demonstrate its accuracy, safety and cost-effectiveness. To evaluate the role of diagnostic FNA cytology in the thyroid nodule, authors compared preoperative cytologic findings with postoperative histologic diagnosis in two hundred two thyroid nodules underwent surgical resection at Department of Surgery, Pusan Paik Hospital. from July 1990 to December 1993. FNA and thyroidectomy was performed primarily by one Head and Neck surgeon and specimen was interpreted by several pathologists. One hundred seventy two FNAs(85%) were interpreted as positive for benign lesion or carcinoma and thirty(15%, cystic in 25, non-cystic lesion in 5 cases) were unsatisfactory specimens for interpretation. The preoperative cytologic diagnosis of 172 cases revealed 'benign' in 112. 'suspicious cancer' in 10 and 'cancer' in 50 cases. Postoperative pathologic diagnosis showed 'nodular goiter' in 64. 'benign tumor' in 43, 'thyroiditis' in 4 and 'cancer' in 61 cases. The value of preoperative FNA diagnosis for thyroid cancer yielded a sensitivity of 85.2%, a specificity of 92.7%, false negative rate 5.2%, false positive rate 4.5% and positive predictive value and overall accuracy were 86.6% and 90.1% respectively. Preoperative rate of malignancy could be increased up to 35.5% by using FNA.

• 대한두경부종양학회지
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• 제13권2호
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• pp.213-220
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• 1997

Background: Thyroid cancer is a relatively rare neoplasm and its incidence varies geographically and ethnically around the world. Thyroid cancer is the most common endocrine malignancy, but it has a wide spectrum of biologic behavior, histologic appearance, and management. Purpose: The purpose of the study was to analyse and evaluate all aspects of the clinical consideration in thyroid cancer. Method: Between 1986 and 1995, a retrospective analysis of 77 thyrod cancer patients admitted at the Department of Surgery, Hangang Sacred Heart Hospital, Hallym University was made to assess clinical entities. Result: By the pathological classification, the papillary carcinoma was the most common type(83.1%). Male to female ratio was 1 : 5.4 and most prevalent age group was noted from fourth decade to fifth decade(46.8%). The most common duration of illness between the appearance of the symptoms and the treatment was below 6 months(44.2%), and the most common symptom was the palpable mass at the anterior portion of the neck(96.1%). Most cases of the thyroid cancer were appeared as cold nodule in the $^{99m}$Tc-thyroid scan(95.7%). In the site of tumor location, the right and left lobe was distributed similarly. In the extent of tumor, incidence of intrathyroidal location was 41.6%, and that of the metastasis to the cervical lymph nodes was 44.2% and that of the direct capsular invasion was 27.3%, and incidence of both involved case was 13%. Surgical procedures were total thyroidectomy alone in 27 cases(35.1%) or with modified neck dissection in 6 cases(7.8%), or with radical neck dissection in 2 cases (2.6%), near total thyroidectomy alone in 22 cases(28.6%), ipsilateral lobectomy with isthmectomy alone in 12 cases(15.6%) or with modified neck dissection in 1 case(1.3%), and biopsy only in 7 cases(9.1%). The most common postoperative complications were transient hypoparathyroidism(5.2%) and transient unilateral recurrent laryngeal nerve paralysis(5.2%). Conclusion: The major problem of management of thyroid cancer include a wide spectrum of clinical behaviour of this tumor entity, the lack of reliable prognostic factors and lack of an objective assessment of the various treatment modalities. But because of showing the favorable prognosis for most thyroid cancer, appropriate and aggressive management should be recommended.

• 대한핵의학회지
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• 제12권2호
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• pp.33-40
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• 1978

Clinical features of 147 patients with biopsy-proven thyroid carcinomas were investigated from January, 1972 to April, 1978 at the Seoul National University Hospital with the following results. 1) The incidence of thyroid carcinomas according to their histopathological classification revealed 76.2% of papillary carcinoma, 19.0% of follicular carcinoma, and 3 cases of occult sclerozing carcinoma, 1 case of giant cell carcinoma and 1 case of metastatic melanoma. 2) The ratio of male to femle patients was 1:8.3 and showed no difference between papillary and follicular carcinomas. 3) The age distribution showed the peak incidence in the fourth decade (29.3%) followed by the fifth and sixth decades. 4) The average duration of illness from the onset of symptoms was about 5 years while it was 4.4 years and 7.6 years in the papillary and follicular carcinomas respectively. 5) The diameter of the thyroid masses was smaller than 5 cm in 53.6% of the patients, from 5 cm to 10 cm in 40.0% and larger than 10 cm in 6.4%. 6) In 36.4% of the patients with thyroid carcinomas the thyroid masses were fixed to adjacent tissues. 7) Metastasis to the regional lymph nodes was noted in 40.0% of the total cases, and in 45.2% and 17.6% of the papillary and follicular carcinomas respectively, while the lung and bone metastases were found in 10.0% and 4.4% in each type respectively. 8) 88.9% of the patients showed cold areas in the thyroid scans using $^{131}I$. 9) Typical psammoma bodies were observed in 21.3% of the cases in the microscopic examination of the pathological specimens. 10) The initial diagnosis of thyroid malignancy could be made before histological confirmation in 64.5% of the patients. 11) The clinical staging slightly modified from Schulz method revealed 43.6% of the patients in stage I, 26.4% in stage II, 20.9% in stags III and 9.1 % in stage IV. 12) The association with Hashimoto's thyroiditis was noted in 4 cases, with nodular goiter in 3 cases, and with follicular adenoma in 1 case.

• Korean Journal of Radiology
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• 제23권11호
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• pp.1102-1111
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• 2022

Objective: To evaluate the ultrasonography (US) features for diagnosing metastasis in cervical lymph nodes (LNs) in patients with thyroid cancer and compare the US classification of risk of LN metastasis between European and Korean guidelines. Materials and Methods: From January 2014 to December 2018, US-guided fine-needle aspiration was performed on 836 LNs from 714 patients for the preoperative nodal staging of thyroid cancer. The US features of LNs were retrospectively reviewed for the following features: size, presence of hilum, margin, orientation, cystic change, punctate echogenic foci (PEF), large echogenic foci, eccentric cortical thickening, abnormal vascularity, and cortical hyperechogenicity. A multiple logistic regression analysis was performed to identify the independent US features for the diagnosis of metastatic LNs. The diagnostic performance of independent US features was subsequently evaluated. LNs were categorized according to the Korean Thyroid Imaging Reporting and Data System (K-TIRADS) and European Thyroid Association (ETA) guidelines, and the correlation between the two sets of classifications was assessed. Results: Absence of the hilum, presence of cystic changes, PEF, abnormal vascularity, and cortical hyperechogenicity were independent US features of metastatic LNs. Cystic changes, PEF, abnormal vascularity, and cortical hyperechogenicity showed high specificity (86.8%-99.6%). The absence of the hilum had the highest sensitivity yet low specificity (66.4%). When LNs were classified according to the ETA guidelines and K-TIRADS, they yielded similar categorizations of malignancy risks and were strongly correlated (Spearman coefficient, 0.9766 [95% confidence interval, 0.973-0.979]). According to the ETA guidelines, 9.8% (82/836) of LNs were classified as "not specified." Conclusion: Absence of hilum, cystic changes, PEF, abnormal vascularity, and cortical hyperechogenicity were independent US features suggestive of metastatic LNs in thyroid cancer. Both K-TIRADS and the ETA guidelines provided similar risk stratification for metastatic LNs with a high correlation; however, the ETA guidelines failed to classify 9.8% of LNs into a specific risk stratum. These results may provide a basis for revising LN classification in future guidelines.

• 대한두경부종양학회지
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• 제14권1호
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• pp.81-87
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• 1998

Fine needle aspiration cytology was used widely to select thyroid nodules for surgery. The result could be highly reliable for most malignancies and for benign nodules. The purpose of this study was to determine the value of frozen biopsy by directly comparing the results of preoperative fine needle aspiration cytology to frozen biopsy examination. In our university hospital, 103 patients with thyroid nodule were operated during the years 1996 through 1997. A comparison of accuracy of the fine needle aspiration cytology with frozen biopsy was made for 85 patients who underwent both procedures. The 85 patients were separated into two groups. The group I included 65 patients, whose preoperative fine needle aspiration cytology results were reported as benign or malignant lesion definitely. The group II included 85 patients, the patients whose reported fine needle aspiration cytologic result was suspicious for malignancy were regarded .as malignant lesion and results for follicular neoplasm were regarded as benign lesion. The accuracy of both procedures was compared on two group also. The sensitivity, specificity, and accuracy of frozen biopsy were 76.7%, 93.5%, and 85.2% in group I and 75.6%, 95.5%, and 85.9% in group II, respectively, compared with 63.3%, 87.1%, and 75.4% in group I and 65.4%, 81.8%, and 72.9% in group II for fine needle aspiration cytology. On benign lesion, the accuracy was 95.5% in frozen biopsy and 68.2% in fine needle aspiration cytology, 75.6% in frozen biopsy and 53.7% in fine needle aspiration cytology on malignant lesion. We conclude that although fine needle aspiration cytology is the reliable diagnostic test in the evaluation of thyroid nodule, frozen biopsy should be performed intraoperatively, because fine needle aspiration cytology is insufficiently sensitive for reliable surgical planning.

• Molecules and Cells
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• 제41권9호
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• pp.853-867
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• 2018

As the most common type of endocrine malignancy, papillary thyroid cancer (PTC) accounts for 85-90% of all thyroid cancers. In this study, we presented the hypothesis that SDC4 gene silencing could effectively attenuate epithelial mesenchymal transition (EMT), and promote cell apoptosis via the $Wnt/{\beta}-catenin$ signaling pathway in human PTC cells. Bioinformatics methods were employed to screen the determined differential expression levels of SDC4 in PTC and adjacent normal samples. PTC tissues and adjacent normal tissues were prepared and their respective levels of SDC4 protein positive expression, in addition to the mRNA and protein levels of SDC4, $Wnt/{\beta}-catenin$ signaling pathway, EMT and apoptosis related genes were all detected accordingly. Flow cytometry was applied in order to detect cell cycle entry and apoptosis. Finally, analyses of PTC migration and invasion abilities were assessed by using a Transwell assay and scratch test. In PTC tissues, activated $Wnt/{\beta}-catenin$ signaling pathway, increased EMT and repressed cell apoptosis were determined. Moreover, the PTC K1 and TPC-1 cell lines exhibiting the highest SDC4 expression were selected for further experiments. In vitro experiments revealed that SDC4 gene silencing could suppress cell migration, invasion and EMT, while acting to promote the apoptosis of PTC cells by inhibiting the activation of the $Wnt/{\beta}-catenin$ signaling pathway. Besides, $si-{\beta}-catenin$ was observed to inhibit the promotion of PTC cell migration and invasion caused by SDC4 overexpression. Our study revealed that SDC4 gene silencing represses EMT, and enhances cell apoptosis by suppressing the activation of the $Wnt/{\beta}-catenin$ signaling pathway in human PTC.

• 대한두경부종양학회지
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• 제24권1호
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• pp.64-68
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• 2008

Purpose：The chronic use of immunosuppressive therapy in transplant recipients can increase the long-term risk of carcinoma. The aim of this study was to determine the incidence, biological behaviors, and treatment outcomes in PTC(papillary thyroid carcinoma) in renal allograft recipients. Material and Methods：The present study examined the incidence and biological behavior of PTCs in RA recipients. A total of 1,739 RA patients treated between January 1986 and December 1999 were followed-up for a median 137(84-238) months. During the follow-up period, 129(7.4%) recipients were identified as having posttransplant malignancies. Of those, 12(0.7%) had PTCs, and these comprised six male and six female patients with a median age of 41(23-57) years. Results：Nine cases(incidentalomas) were diagnosed based on ultrasonography(US) screening. Eight of those nine were TNM stage I, and two of the three clinical carcinomas were TNM stage IVa. During a median follow-up of 94(18-159) months, two(16.7%) PTC patients developed loco-regional recurrence, but no patients showed distant metastasis. Posttransplant PTC showed no gender bias, and was often associated with aggressive lymphatic metastasis. However, most incidentalomas showed a favorable treatment outcome. Conclusion：In conclusion, routine surveillance of the thyroid gland using US screening is recommended to ensure early detection, treatment and favorable prognosis in RA patients with PTC.

• 대한방사선기술학회지:방사선기술과학
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• 제35권3호
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• pp.237-248
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• 2012

출산 후 우울감이 있는 여성의 갑상선질환 빈도가 증가하면서 출산 후 우울증과 갑상선질환의 상관성 여부가 논의의 대상이 되고 있다. 본 연구는 출산 후 우울증의 유병률을 예측하고 초음파검사를 통한 갑상선질환과의 상관성에 대해 연구하고자 한다. 2010년 1월부터 2011년 11월까지 M산부인과에 내원한 출산 후 1년 이내의 환자 230명을 대상으로, 우울증 선별검사와 대상자의 일반적 특성을 조사하였고 갑상선검사는 초음파검사와 혈액검사를 하였다. 대상자 230명 중 비우울집단은 122명(53.0%), 우울집단은 108명(47.0%)이었다. 갑상선 초음파검사에서 갑상선의 크기변화가 있었던 27명 중 비우울집단은 4명 (14.8%)이었고, 우울집단은 23명(85.2%)이었다. 또한 갑상선 결절이 발견된 124명 중 비우울집단은 45명(35.8%)이었고, 우울집단은 79명(64.2%)이었다. 초음파유도하 미세침흡인검사 결과, 양성 33명 중 비우울집단은 15명(45.5%)이었고, 우울집단은 18명(54.5%)이었다. 갑상선염 3명 중 비우울집단은 1명(33.3%)이었고, 우울집단은 2명(66.7%)이었다. 악성 5명은 모두 우울집단에서만 나타났다. 초음파검사를 통한 갑상선의 크기변화, 갑상선 결절의 발생빈도 등 갑상선질환은 우울집단이 비우울집단에 비해 높게 나타났으며 유의한 차이가 나타났다. 갑상선 혈액검사 결과, 비정상적인 갑상선자극호르몬의 수치를 보였던 7명 중 비우울집단은 2명(28.6%)이었고, 우울집단은 5명(71.4%)이었다. 비정상적인 유리티록신의 수치를 보였던 9명 중 비우울집단은 4명(44.4%)이었고, 우울집단은 5명(55.6%)이었다. 갑상선 기능이상은 230명 중 5명이었고, 5명 중 비우울집단에서는 잠재적 갑상선항진증이 2명이었다. 우울집단에서는 잠재적 갑상선저하증이 1명, 잠재적 갑상선항진증이 2명이었고 혈액검사를 통한 두 집단의 유의한 차이가 나타나지 않았다. 본 연구는 출산 후 우울증과 초음파검사를 통한 갑상선질환의 상관성이 나타났으며, 본 연구의 객관적 결과들이 출산 후 우울증과 갑상선질환에 대한 폭넓은 인식과 예방 및 치료의 가이드라인을 제시할 수 있을것이라 사료된다.