Diffuse sclerosing variant of papillary thyroid carcinoma (DSVPC) is a rare variant of conventional papillary thyroid carcinoma which was first reported in 1985. It appears to be more aggressive than conventional type...Diffuse sclerosing variant of papillary thyroid carcinoma (DSVPC) is a rare variant of conventional papillary thyroid carcinoma which was first reported in 1985. It appears to be more aggressive than conventional type of papillary thyroid carcinoma. We present a case in a 14-year-old girl who initially presented with thyrotoxicosis and was later diagnosed with DSVPC on subsequent ultrasound and fine need leaspiration when cervicallymph node was evident on clinical examination. Concomitant thyrotoxicosis in thyroid carcinoma is uncommon. The prevalence, clinical presentation, characteristic radiological and histological features, management and prognosis of DSVPC are discussed with literature review. We also hope to illustrate through this case that ultrasound as a non-invasive imaging modality is an invaluable tool for workup in functional thyroid problems and concomitant malignancy may not be that uncommon, so that we could provide prompt treatment to our patients.展开更多
PAPILLARY thyroid carcinoma （PTC） is the most common thyroid cancer and consists of nearly 80% of all cases of thyroid cancer.1 It is asso- ciated with the lowest level of malignancy and an excellent prognosis. Prim...PAPILLARY thyroid carcinoma （PTC） is the most common thyroid cancer and consists of nearly 80% of all cases of thyroid cancer.1 It is asso- ciated with the lowest level of malignancy and an excellent prognosis. Primary thyroid lymphoma （PTL） is a lymphomatous process which develops in the thyroid without involvement of primary lymphoid organs or distant metastases at diagnosis.2 It is a rare malignancy that accounts for 1%-5% of all thyroid malignancies and less than 2% of all extranodal lymphomas. The incidence of PTL is one or two cases per million.2＇ 3 It occurs frequently in elder woman, with a peak incidence in the sixth decade of life.展开更多
目的探讨小样本甲状腺高b值扩散加权成像(DWI)影像组学分类模型鉴别诊断结节型桥本甲状腺炎(NHT)与甲状腺微小乳头状癌(PTMC)的价值。资料与方法回顾性纳入经病理证实的40例46个NHT和48例61个PTMC甲状腺高b值DWI,对结节进行分割、特征...目的探讨小样本甲状腺高b值扩散加权成像(DWI)影像组学分类模型鉴别诊断结节型桥本甲状腺炎(NHT)与甲状腺微小乳头状癌(PTMC)的价值。资料与方法回顾性纳入经病理证实的40例46个NHT和48例61个PTMC甲状腺高b值DWI,对结节进行分割、特征值提取,并使用3种特征值标准化、2种降维、3种特征值筛选方法确定影像组学特征值,采用受试者工作特征(ROC)曲线和曲线下面积(AUC)分析10种分类模型对两种病变的鉴别诊断效能。结果46个NHT和61个PTMC共提取了107个影像组学特征值。当选择Normalize to unit(NormUnit)进行标准化、主成分分析进行降维、ANOVA进行特征值筛选,在15个特征值时,线性判别分析分类模型鉴别诊断NHT与PTMC效果最优,准确度为85.71%,敏感度为80.00%,特异度为100.00%,AUC值为0.925。结论小样本甲状腺高b值DWI影像组学分类模型对于NHT和PTMC具有鉴别诊断价值。展开更多
文摘Diffuse sclerosing variant of papillary thyroid carcinoma (DSVPC) is a rare variant of conventional papillary thyroid carcinoma which was first reported in 1985. It appears to be more aggressive than conventional type of papillary thyroid carcinoma. We present a case in a 14-year-old girl who initially presented with thyrotoxicosis and was later diagnosed with DSVPC on subsequent ultrasound and fine need leaspiration when cervicallymph node was evident on clinical examination. Concomitant thyrotoxicosis in thyroid carcinoma is uncommon. The prevalence, clinical presentation, characteristic radiological and histological features, management and prognosis of DSVPC are discussed with literature review. We also hope to illustrate through this case that ultrasound as a non-invasive imaging modality is an invaluable tool for workup in functional thyroid problems and concomitant malignancy may not be that uncommon, so that we could provide prompt treatment to our patients.
基金Supported by the Natural Science Foundation of China(81541131)
文摘PAPILLARY thyroid carcinoma （PTC） is the most common thyroid cancer and consists of nearly 80% of all cases of thyroid cancer.1 It is asso- ciated with the lowest level of malignancy and an excellent prognosis. Primary thyroid lymphoma （PTL） is a lymphomatous process which develops in the thyroid without involvement of primary lymphoid organs or distant metastases at diagnosis.2 It is a rare malignancy that accounts for 1%-5% of all thyroid malignancies and less than 2% of all extranodal lymphomas. The incidence of PTL is one or two cases per million.2＇ 3 It occurs frequently in elder woman, with a peak incidence in the sixth decade of life.
文摘目的探讨小样本甲状腺高b值扩散加权成像(DWI)影像组学分类模型鉴别诊断结节型桥本甲状腺炎(NHT)与甲状腺微小乳头状癌(PTMC)的价值。资料与方法回顾性纳入经病理证实的40例46个NHT和48例61个PTMC甲状腺高b值DWI,对结节进行分割、特征值提取,并使用3种特征值标准化、2种降维、3种特征值筛选方法确定影像组学特征值,采用受试者工作特征(ROC)曲线和曲线下面积(AUC)分析10种分类模型对两种病变的鉴别诊断效能。结果46个NHT和61个PTMC共提取了107个影像组学特征值。当选择Normalize to unit(NormUnit)进行标准化、主成分分析进行降维、ANOVA进行特征值筛选,在15个特征值时,线性判别分析分类模型鉴别诊断NHT与PTMC效果最优,准确度为85.71%,敏感度为80.00%,特异度为100.00%,AUC值为0.925。结论小样本甲状腺高b值DWI影像组学分类模型对于NHT和PTMC具有鉴别诊断价值。
