Objective To study HRCT appearances,clinic value and pathological fundament of the pulmonary honeycombing.Methods 60 patients including three groups with pulmonary honeycombing underwent HRCT scan.The comparative study of HRCT-pathology was done in 6 pulmonary postmortems with honeycombing.Results On HRCT images,honeycombing cysts were round-like with air inside,the cyst walls included remains of pulmonary inherent components and hyperplastic fibrotic tissue in pathology.The diameter of cysts was small,58 cases of them belonged to small group(90.6%).The distribution of lesions was mainly at lower(47cases,71.9%)and peripheral lung zone(52cases,81.3%),but there were differences in different type of the diseases.The cysts might become larger and it is impossible to recovery.Conclusion The honeycombing cysts appear as cystic cavities arranging as multiple layers,the cystic walls consist of different tissues in pathology,that are the manifestations of the end-stage of pulmonary fibrosis.HRCT appearances in different patients in three groups were different.

Objective To assess the accuracy of histological type and molecular subtype observed in preoperative 11-gauge vacuum-assisted core needle biopsy(VACNB) specimens in breast cancer.Methods Patients diagnosed by preoperative 1 l-gauge VACNB and received subsequent open excisional biopsy (OEB) from Mar 1 st 2014 to Mar 31 st 2015 were included.Kappa testing was used to test the concordance rate of histological type,estrogen receptor(ER),progesterone receptor(PR),human epidermal growth factor 2(Her-2),Ki-67 and molecular subgroups between VACNB and paired OEB specimens.ER,PgR,Her-2,and Ki-67 were determined by immunohistochemistry (IHC).Patients with Her-2 IHC (+ +) were further examined by FISH.Molecular subtypes were classified as follows:LuminalA,LuminalB,Triple Negative,and Her-2 positive.Results There were 36 patients analyzed(32 of them had invasive breast cancer).Between VACNB and paired OEB specimens,concordance rate of histological type,ER,PR,Her-2,Ki-67 and molecular group were 94.4％ (κ =0.934),96.9％ (κ =0.904),87.5％ (κ =0.710),100％ (κ =1.000),84.4％ (κ =0.570),78.1％ (κ =0.621).No significant difference was detected in the expression of ER,PR and Ki-67 between VACNB and OEB specimens according to paired t-test results.Concordance rate of each molecular subtype between VACNB and OEB specimens were 100％ for Her-2 positive subtype,94.1％ for LuminalB subtype,50％ for LuminalA,and 33.3％ for TNBC.When the threshold for ER/PR positivity was upgraded from ≥1％ to ≥10％ and Ki-67 cutoff value to≥20％,the concordance rate for ER,PR,Ki-67 and molecular subtype reached to 100％,93.8％,87.5％,81.3％.Conclusions 11 G vacuum-assisted core needle biopsy was accurate in determining histological type and molecular subtype in breast cancer.

Objective To evaluate the clinical value of regular and dual-time-point 18-fluorodeoxyglucose positron emission tomography-CT(FDG PET/CT)imaging for recurrence and metastasis in esophageal carcinoma(EC)after curative esophagectomy. Methods A retrospective study was done on 48 patients received curative esophagectomy, who underwent FDG PET/CT scans to detect doubtful recurrent or metastatic lesions. The diagnostic accuracy of FDG PET-CT was assessed with the help of pathological findings as well as clinical or follow-up data. Using Fisher's Exact Test from SPSS 11.5 to analyze the data.Results Of the 48 patients, after a median follow-up of 21.5 months, 61 sites of local and regional recurrence or metastasis were finally confirmed in 34 patients. The sensitivity, specificity and accuracy of regular FDG PET/CT imaging in detecting recurrence of all sites were 93.44%, 74.29% and 86.46%respectively. The specificity and accuracy of local recurrence and regional metastasis were 57.14% ,78.95% and 77.78% ,84.62%, respectively. The sensitivity, specificity and accuracy of dual-time-point FDG PET/ CT imaging in detecting local and regional recurrence(96.97% ,96.00% and 96.55%)were higher than those of regular FDG PET/CT(90.90%, 72.00% and 82.76%)and there were significant differences of specificity and accuracy(P = 0.049, P = 0.029). Conclusions Regular FDG PET/CT imaging is highly effective in detecting recurrence and metastasis in EC patients after curative esophagectomy despite the low specificity and accuracy. Dual-time-point FDG PET/CT imaging can elevate the specificity and accuracy.

Objective To compare the sensitivity and diagnostic features of mammogram (MG) and magnetic resonance imaging (MRI) on diagnosis of breast ductal carcinoma in situ (DCIS) with or without microinvasion (DCIS-MI).Methods From Jan 2012 to Nov 2013,results of MG and MRI from 72 cases of DCIS or DCIS-MI were retrospectively analyzed.Results The sensitivity of MG was 52.8％ (38/72).The sensitivity of MRI was 87.5％ (63/72),among those 76.2％ (48/63)lesions presented as non-mass-like enhancement.Sensitivity of MRI was significantly higher in DCIS-MI than DCIS (84.6％ vs 100％,P =0.027).Logistic regression analysis showed calcifications was an independent factor influencing the sensitivity of MG (OR =23.785,P ＜ 0.001).Conclusions The sensitivity of MRI is higher than MG for the diagnosis of DCIS and DCIS-MI.