Malignant mesothelioma, an aggressive and often lethal tumor commonly associated with asbestos exposure, has been morphologically classified into epithelial, biphasic, and sarcomatoid subtypes. Histological distinction between biphasic or sarcomatoid mesothelioma and synovial sarcoma may be problematic in certain circumstances of intrathoracic location because of their similar clinicopathologic features, including not only their morphology but also occasional positive immunoreaction of mesothelioma markers. TLE1, which plays an important role in Wnt pathway, has been shown to be a specific marker for synovial sarcoma and diagnostically is useful; however, TLE1 expression in malignant mesotheliomas has not been fully evaluated. We immunohistochemically examined the expression of TLE1, factors related to the Wnt pathway including β-catenin and cyclin D1, and mesothelioma markers including calretinin, HBME-1, cytokeratin 5/6, and thrombomodulin in 29 malignant mesotheliomas. TLE1 was variably expressed in 28 malignant mesotheliomas regardless of histomorphological subtype with >25% of positive cells in 20 cases (69.0%). There was no evidence of association of TLE1 expression with immunoreactivity to other markers. Our study showed no or limited value of the immunohistochemical TLE1 expression in distinguishing malignant mesothelioma and synovial sarcoma.
Purpose: To correlate peritumoral fat content using iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL) with histologic prognostic factors in breast carcinoma.
Materials and Methods:This study consisted of 100 patients who were diagnosed with invasive carcinoma of breast and underwent breast MRI including IDEAL before surgery. The scan time of IDEAL fat fraction (FF) map imaging was 33 s. Four regions of interests (ROIs), which are a distance of 5 mm from the tumor edge, and one ROI in the mammary fat of the healthy side were set on the FF map. Then average peritumoral FF values (FFt), average FF values in the healthy side (FFh), and peritumoral fat ratio (pTFR: defined as FFt/FFh) were calculated. Histologically, the presence of lymph node metastasis and the MIB-1 index were evaluated.Results: FFt and pTFR for breast carcinoma with lymph node metastasis (79.27 ± 10.36 and 0.897 ± 0.078) were significantly lower than those without (86.23 ± 4.53 and 0.945 ± 0.032) (P < 0.001 and P = 0.005). Spearman rank correlation suggested that the FFt correlated with the MIB-1 index (r = −340, P = 0.001).
Conclusion:Quantification of peritumoral fat using IDEAL-iron quantification is associated with the histologic prognostic factors, and may be a practical tool for therapeutic strategy of breast carcinoma.
The most common arthritic involvement in familial Mediterranean fever (FMF) is acute self- limiting monoarthritis which typically lasts for 72 h. Hip joint involvement is uncommon in FMF and can result either from a process specific to this disease or from a coexisting inflammatory joint disease. We describe a 37-year-old woman with FMF and right osteoarthritis secondary to congenital hip dislocation. Periodic fever with right coxalgia lasting for 6 months was treated using colchicine. Genetic analysis revealed homozygous mutation in the MEFV gene (L110P-E148Q/L110P-E148Q), confirming the FMF diagnosis. Although the clinical presentation and course of FMF arthritis are diverse, delineating these clinical patterns may help with early recognition and treatment to prevent destructive arthritis in FMF. Clinicians should consider the possibility of FMF development in unusual monoarthritis patients with recurrent febrile attacks.
We correlated fat content surrounding breast cancer using the IDEAL IQ method with histologic prognostic factors. There was a signiˆcant correlation between the fat content calculated with the IDEAL IQ method and the histologic prognostic factors (lymph node metastasis and MIB 1 index). Fat content surrounding breast cancer calculated with the IDEAL IQ method may be a useful prognostic biomarker for breast carcinoma.
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