Examining the Pathological Diagnostic Impact of Frozen Sections in Breast Cancer

Objective:To analyze the diagnostic value of frozen section pathology in the diagnosis of breast cancer.Methods:A total of 50 patients with breast tumors treated between July 2021 and February 2023 were randomly selected as samples.Both paraffin section and frozen section diagnoses were conducted.The paraffin section results served as the gold standard for evaluating the value of frozen section examination.Results:Among the frozen section diagnoses,48 cases(96.00%)were confirmed,1 case was misdiagnosed(2.00%),and 1 case was delayed(2.00%).Among the confirmed patients,45 cases(90.00%)were entirely consistent,and 3 cases(6.00%)were basically consistent.The diagnostic rate of the frozen section was 96.00%,compared with 100.00%for the paraffin section(P>0.05).The diagnostic time of the frozen section(35.25±2.11 min)was significantly shorter than that for the paraffin section(6911.36±58.36 min;P<0.05).Conclusion:Frozen section diagnosis is rapid and demonstrates relatively high diagnostic accuracy.It can guide doctors in determining whether to pursue breast-conserving treatment and aid in selecting appropriate surgical methods.This is beneficial for preventing unnecessary medical interventions and reducing the need for secondary surgeries in breast cancer patients.

Role of frozen section assessment for intraductal papillary and mucinous tumor of the pancreas

Intraductal papillary mucinous neoplasms(IPMN) of the pancreas include a spectrum of dysplasia ranging from minimal mucinous hyperplasia to invasive carcinoma and are extensive tumors that often spread along the ductal tree.Several studies have demonstrated that preoperative imaging is not accurate enough to adapt the extent of pancreatectomy and have suggested routinely using frozen sectioning(FS) to evaluate the completeness of resection and also to check if ductal dilatation is active or passive,in order to avoid an excessive pancreatic resection.Separate main duct and branch duct analysis is needed due to the difference in the natural history of the disease.FS accuracy averages 95%.Eroded epithelium on the main duct,severe ductal inflammation mimicking dysplasia and reactive epithelial changes secondary to obstruction can lead to inappropriate FS results.FS results change the planned extent of resection in up to 30% of cases.The optimal cut-off leading to extend pancreatectomy is not consensual and our standard option is to extend pancreatec-tomy if FS reveals:(1) at least IPMN adenoma on the main duct;or(2) at least borderline IPMN on branch ducts;or(3) invasive carcinoma.However,the decision to extend resection must be taken after a multidisciplinary discussion since it does not exclusively depend on the FS result but also on age,general condition and expected prognosis after resection.The main limitation of using FS is the existence of discontinuous("skip") lesions which account for approximately 10% of IPMN in surgical series and can lead to reoperation in up to 8% of cases.

Histological examination of frozen sections for patients with acute cholecystitis during cholecystectomy

BACKGROUND:Unexpected gallbladder cancer may present with acute cholecystitis-like manifestations.Some authors recommended that frozen section analysis should be performed during laparoscopic cholecystectomy for all cases of acute cholecystitis.Others advocate selective use of frozen section analysis based on gross examination of the specimen by the surgeon.The aim of the present study was to evaluate whether surgeons could effectively identify suspected gallbladder with macroscopic examination alone.If not,is routine frozen section analysis worth advocating?METHODS:A total of 1162 patients with acute cholecystitis who had undergone simple cholecystectomy in our hospital from February 2009 to February 2014 were enrolled in the study.The data of patients with acute cholecystitis especially those with concurrent gallbladder cancer in terms of clinical characteristics,operative records,frozen section diagnosis and histopathology reports were analyzed.RESULTS:Thirteen patients with acute cholecystitis were found to have concurrent gallbladder cancer,with an incidence of 1.1%in acute cholecystitis.Forty patients with acute cholecystitis were suspected to have gallbladder cancer by macroscopic examination and specimens were taken for frozen section analysis.Six patients with gallbladder cancer were correctly identified by macroscopic examination alone but 7patients with gallbladder cancer missed,including 3 patients with advanced cancer(2 T3 and 1 T2).Meanwhile,in 6 gallbladder cancer specimens sent for frozen section analysis,3 early gallbladder cancers(2 Tis and 1 T1a)were missed by frozen section analysis.However,the remaining 3 patients with advanced gallbladder cancers(2 T3 and 1 T2)were correctly diagnosed.CONCLUSIONS:The incidence of comorbidity of gallbladder cancer and acute cholecystitis is higher than that of non-acute cholecystitis.The accurate diagnosis of gallbladder cancer by surgeons is poor and frozen section analysis is necessary.

Intraoperative frozen section diagnosis of bile duct margin for extrahepatic cholangiocarcinoma

AIM To evaluate the usefulness of frozen section diagnosis(FSD) of bile duct margins during surgery for extrahepatic cholangiocarcinoma(CCA). METHODS We retrospectively analyzed 74 consecutive patients who underwent surgery for extrahepatic CCA from 2012 to 2017, during which FSD of bile duct margins was performed. They consisted of 40 distant and 34 perihilar CCAs(45 and 55 bile duct margins, respectively). The diagnosis was classified into three categories: negative, borderline(biliary intraepithelial neoplasia-1 and 2, and indefinite for neoplasia), or positive. FSD in the epithelial layer, subepithelial layer, and total layer was compared with corresponding permanent section diagnosis(PSD) postoperatively.Then, association between FSD and local recurrence was analyzed with special reference to borderline.RESULTS Analysis of 100 duct margins revealed that concordance rate between FSD and PSD was 68.0% in the total layer, 69.0% in the epithelial layer, and 98.0% in the subepithelial layer. The extent of remaining biliary epithelium was comparable between FSD and PSD, and more than half of the margins lost > 50% of the entire epithelium, suggesting low quality of the samples. In FSD, the rate of negative margins decreased and that of borderline and positive margins increased according to the extent of the remaining epithelium. Diagnostic discordance between FSD and PSD was observed in 31 epithelial layers and two subepithelial layers. Alteration from borderline to negative was the most frequent(20 of the 31 epithelial layers). Patients with positive margin in the total and epithelial layers by FSD demonstrated a significantly worse local recurrence-free survival(RFS) compared with patients with borderline and negative margins, which revealed comparable local RFS. Patients with borderline and negative margins in the epithelial layer by PSD also revealed comparable local RFS. These results suggested that epithelial borderline might be regarded substantially as negative. When classifying the status of the epithelial layer either as negative or positive, concordance rates between FSD and PSD in the total, epithelial, and subepithelial layers were 95.0%, 93.0%, and 98.0%, respectively.CONCLUSION During intraoperative assessment of bile duct margin, borderline in the epithelial layer can be substantially regarded as negative, under which condition FSD is comparable to PSD.

Retrospective Analysis of Diagnosis by Intraoperative Frozen Section and Routine Paraffin Embedded Tissue in 638 Thyroid Disease Patients

OBJECTIVE To summarize a common pathogenetic condition,the pathologic characteristics shown in frozen section and ourexperience utilizing 2 different diagnostic methods in cases ofcommon thyroid diseases (TD).METHODS Data from 638 cases with frozen sections fromthyroid tissue were retrospectively analyzed.The intraoperativefrozen sections of the patients and postoperative diagnostic resultsof routine paraffin sections were compared.RESULTS In the 683 patients,the gender ratio of females tomales was 2.64:1,and the ratio between the patients with nodulargoiter (NG) and the patients with thyroid adenoma was 1.5:1.Theoldest age group of patients with thyroid cancer (TC) ranged from40 to 49 years.Frozen section pathologic examination has beenemployed more and more in the diagnosis of thyroid diseases,and the detection rate of TC has increased year by year,i.e.,therate increased to 6.45%,7.58%,14.55% and 16.57%,respectively,in2005,2006,2007 and 2008.Thyroid papillary carcinoma (TPC) wasthe most commonly seen malignant tumor of the thyroid (MTT),which accounted for approximately 94.8% of MTTs and 11.44%of the total TDs.Micropapillary carcinoma accounted for 27.4%of TPC,and multifocal carcinomas accounted for 15.58% of TCs.Many of the TCs (19.48%) were complicated by benign diseasessuch as adenoma,NG and thyroiditis.The coincidence rate ofdiagnoses made by frozen section and paraffin embedding forthyroid disease was 98.59%.Calcification was rather common inNG and TPC,and there were significant differences in psammomabodies (PMB) between the calcifications of TPC and NG (P<0.01).CONCLUSION TPC ranks first in the incidence of MTTsand accounts for 94.8% of all MTTs.About 1/4 of TPCs aremicropapillary carcinoma,while 1/5 are accompanied by benigndisease,such as adenoma,NG and thyroiditis.PMB are ofimportance and of significance in the diagnosis of TPC.

Comparative Study between Intraoperative Frozen Section and Scrape Smear Cytology in the Diagnosis of Ovarian Neoplasm

Objective: The aim of this work is to compare between intraoperative frozen section and scrape smear cytology in the diagnosis of ovarian neoplasm. Method: This study was performed between March 2011 and March 2012, on 50 patients presented with ovarian mass. Gross examination of the tumor removed was done by inspection and palpation. The specimen was then cut with a sharp knife into two halves. The area was scraped with a sharp scalpel or the end of a glass slide, depending upon the type of tissue. A semifluid drop thus obtained was spread over a glass slide. One to four slides per case were taken from different representative areas. The slides were labelled and immediately put into 95% ethyl alcohol and stained with hematoxylin-eosin. The specimens were then fixed in formalin. Paraffin blocks of the sections were processed in the routine way and sections were stained with hematoxylin and eosin (H and E). Assessment of the overall accuracy of the intraoperative diagnosis was classified as concordant or discordant. Results: The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of scraping technique in the diagnosis of benign ovarian masses were 100%, 95.2%, 96.7%, 100% and 98% respectively. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of scraping technique in the diagnosis of border line ovarian masses were 100%, 93.4%, 25%, 100% and 94% respectively. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of scraping technique in the diagnosis of malignant ovarian masses were 80%, 100%, 100%, 88.2% and 92% respectively. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of frozen section in the diagnosis of benign ovarian masses were 100%, 100%, 100%, 100% and 100% respectively. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of frozen section in the diagnosis of borderline ovarian masses were 100%, 95.9%, 33.3%, 100% and 96% respectively. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of frozen section in the diagnosis of malignant ovarian masses were 90%, 100%, 100%, 93.8% and 96% respectively. Conclusion: Frozen section is more accurate than smear preparations in the intraoperative assessment of ovarian tumors in this study. However, the cytology preparations were helpful in supporting the histological diagnoses, and in some cases, provided additional useful information. Thus, cytology has a complementary role to frozen section in the intraoperative assessment of ovarian lesions. At the centers where the facilities of frozen section are not available, intraoperative scrape cytology is a useful tool for intraoperative diagnosis of tumor.

Accuracy of Intraoperative Frozen Section in the Diagnosis of Ovarian Neoplasms

Objective: The aim of the work is to evaluate the accuracy of intraoperative frozen section in the diagnosis of ovarian neoplasms in Zagazig University. Design: A prospective cross sectional cohort study. Method: This study was performed between March 2011 and March 2012, on 50 patients presented with ovarian mass. Gross examination of the tumor removed was done by inspection and palpation. The specimen was then cut with a sharp knife into two halves. The most appropriate area thought to be representative of lesion was chosen. The number of sections frozen was depended on the type and size of the tumor. Seven to eight μm sections were obtained and stained with hematoxylin-eosin. The specimens were then fixed in formalin. Paraffin blocks of the sections were processed in the routine way and sections were stained with hematoxylin and eosin (H and E). The diagnosis obtained by intraoperative frozen section based on cellularity and cell morphology was compared with final histopathological diagnosis in terms of diagnostic sensitivity, to differentiate between benign and malignant lesions. Assessment of the overall accuracy of the intraoperative diagnosis was classified as concordant or discordant. Results: There was no statisticaly significant differencre in the studied patients as regard the clinical data, macroscopic and intraoperative picture, while there was statisticaly significat association as regard the laterality of the ovarian masses. The validity of frozen section in the diagnosis of benign tumour was 100% with 100% accuracy, specificity, positive predictive value, negative predictive value, while sensitivity & negative prediction for borderline tumour and specificity & positive prediction of malignant tumour were 100%, specifecity for borderline tumours was 95% while the positive predictive value was 33.3% with 96% accuracy for both malignant and borderline tumours. Conclusion: Intraoperative frozen section is accurate for rapid diagnosis of ovarian tumors. It can help surgeons avoid under-treatment or overtreatment of patients. Our study was designed prospectively using a small number of patients. The door is open to larger studies using a larger number of patients to be performed in order to substantiate our results.

Quality assessment of intraoperative frozen sections: An analysis of 261 consecutive cases in a resource limited area: Morocco

Purpose: To evaluate the accuracy and limits of a frozen section analysis in our department in order to develop a quality control. Materials and methods: all frozen sections reported at our department between 1st January 2010 and 31st December 2010, have been retrospectively evaluated. The frozen section results were compared to permanent paraffin section results. Results: Frozen sections and final diagnosis agreed in 95% and disagreed in 5% (13 cases), 6.6% of the cases were deferred (17 cases). The most common pathological processes encountered were presence/typing of neoplasm (85.4%) and assessment of surgical margins (7.3%). Conclusion: The accuracy of frozen sections diagnosis at our department can be interpreted as comparable with the most international quality control series and is valuable to assist surgeons in their decision.

Frozen Section Analysis of Breast Lumpectomy Margins

Objectives: To evaluate breast lumpectomy margins by frozen section in breast conservation surgery. Methods: A retrospective study of frozen section of lumpectomy margins of one hundred ten patients was done at King Abdulaziz University Hospital from June 2007 to June 2013. All patients underwent lumpectomy + Sentinel lymph node biopsy. Patient records were studied for location of mass in breast, size of mass, site of breast, pre or postmenopausal, frozen section margins, new frozen section margins, permanent margins, reoperation. Complications like skin necrosis, numbness, and wound infection were studied. Result: Majority were Saudis (64.5%). Left breast was involved in 60%. Upper outer quadrant was involved in majority (51.9%). Size of mass was less than 1 cm in 14.8% cases, 1 - 2.9 cm in 43.5%, 3 - 4 cm in 13%, more than 4 cm in 10.2%. Lumpectomy plus sentinel lymph node biopsy was done in 96.4% and lumpectomy and axillary lymph node dissection was done in 1.8% cases. Gross margins were positive in 17.3% and frozen margins were positive in 28.2%. New margin on frozen section were positive in 3.6% and negative in 79.1%. Permanent section histology showed positive margins in 5.5% and negative in 94.5% cases. Re-operation was done in 7.3%. Lympho-vascular margins were positive in 20.9%. Skin necrosis was found in 2.2%, numbness was found in 4.4%, wound infection was in 2.2%. Conclusion: Lumpectomy margins with frozen section reduce re-operation and recurrence.

Frozen Section in Postmenopausal Women Presented with Suspicious Ovarian Masses, Does It Have a Role?

Background: Frozen section (FS) has a valuable role in the diagnosis of ovarian tumors. It is considered a pivotal point in guiding the surgical therapy, particularly in premenopausal women. In postmenopausal women, it may be required as well to avoid unnecessary surgical staging in benign ovarian tumors. Aim: This study aims to evaluate the accuracy of intraoperative frozen section in ovarian neoplasms in postmenopausal women. Materials and Methods: A retrospective analysis was done for intraoperative FS for suspected ovarian neoplasms. The study was conducted in Oncology Center, Mansoura University from March 2008 to December 2014. The frozen and paraffin section reports were compared, and overall accuracy, sensitivity, specificity, positive and negative predictive values were determined. Results: The study included 105 patients and the overall accuracy of FS in determining malignancy was 81.7%. The sensitivity for malignant tumors was 75.32% with specificity of 100%. For benign tumors, the sensitivity and specificity were 100% and 93%, respectively. Borderline tumors had the lowest sensitivity of 100% with specificity of 95.19%. Conclusion: The present study concurs that frozen section is an accurate test for diagnosis of benign and malignant tumors in postmenopausal women thus determining the extent of surgery done for them. On the other hand, accuracy rates for borderline tumors are low.

The Effectiveness of Intraoperative Frozen Section Analysis of Safety Margins in Breast Conserving Surgery and the Role of Surgeon in Decreasing the Rate of Positive Margins

Introduction: Nowadays the more accepted surgical option for treating early breast cancer is breast conserving surgery. The main challenge in this type of surgery is to get free safety margins without need of second surgical operation, so many breast surgeons have started to depend on intraoperative frozen sections to ensure free safety margins. Aim of work: To assess our policy that we prefer to depend on intraoperative frozen section analysis to get free safety margin in breast conserving surgery from the 1st surgery, and its oncologic outcome. Patients and Methods: This is a retrospective study conducted in Oncology Center—Mansoura University (OCMU), where the data of 219 patients with breast cancer, who were managed by breast conserving surgery with intraoperative frozen section analysis of the safety margins, was analyzed. Results: The intraoperative frozen section analysis of safety margin was negative from the start in 183 (83.6%) patients, while it was positive in 36 patients (16.4%). Intraoperative decision of margin re-excision was applied for 29 patients (13.2%) in order to reach negative margin, modified radical mastectomy was offered for 4 patients (1.8%), while nipple sparing mastectomy with immediate breast reconstruction using latissimus dorsi flap was offered for 3 patients (1.4%). The postoperative paraffin results were typical with intraoperative frozen section analysis results in 216 patients (98.6%) and different results were obtained in only 3 patients (1.4%) who were managed by modified radical mastectomy in a second operation. Only 4 patients had local recurrence (1.8%) during the period of follow-up duration which was ranged from 1 to 86 months with mean ± SD (22.3 ± 14.1). Conclusion: The intraoperative frozen section analysis of safety margins in breast conserving surgery has very high-rate typical results with the paraffin section analysis and it is very helpful in decreasing the rate of second surgical operation in cases of infiltrated margins. It should be used routinely in all cases of breast conserving surgery.

Is the Use of Frozen Section Indispensable in the Surgical Treatment of Endometrial Hyperplasia?

Objective: To evaluate the reliability and accuracy of frozen section (FS) compared with final pathology and to determine whether they should be obligatory in every patient with atypical endometrial hyperplasia (AEH). Methods: We retrospectively assessed the medical records of 192 patients whose endometrial biopsy results were endometrial hyperplasia and underwent hysterectomy at our center. Results: Twenty-two (11.4%) of the 192 patients in our study had concurrent endometrial carcinoma (EC). Of these, 21 (95.5%) were EC and 1 (4.5%) was non-endome- trioid. Of the 140 patients with AEH, 20 (14.3%) had concurrent EC. Overall, 157 patients had FS. Two (1%) patients’ EC was higher than grade 1B and needed lymphadenectomy. The positive and negative predictive value, specifity and sensitivity of FS were found to be 77.8%, 95.7%, 97% and 70%, respectively. Conclusion: Patients who have AEH without high-risk comorbidities do not have to be referred to oncology centers and can undergo hysterectomy in community hospitals without FS.

Does intraoperative frozen section really predict significant positive surgical margins after robot-assisted laparoscopic prostatectomy?A retrospective study

We investigated the relationship between positive surgical margin(PSM)-related factors and biochemical recurrence(BCR)and the ability of intraoperative frozen sections to predict significant PSM in patients with prostate cancer.The study included 271 patients who underwent robot-assisted laparoscopic prostatectomy with bilateral nerve sparing and maximal urethral preservation.Intraoperative frozen sections of the periurethra,dorsal vein,and bladder neck were analyzed.The ability of PSM-related factors to predict BCR and significant PSM was assessed by logistic regression.Of 271 patients,108(39.9%)had PSM and 163(60.1%)had negative margins.Pathologic Gleason score^8(18.9%vs 7.5%,P=0.015)and T stage≥T3a(51.9%vs 24.6%,P<0.001)were significantly more frequent in the PSM group.Multivariate analysis showed that Gleason pattern≥4(vs<4;hazard ratio:4.386;P=0.0004)was the only significant predictor of BCR in the PSM cohort.Periurethral frozen sections had a sensitivity of 83.3%and a specificity of 84.2%in detecting PSM with Gleason pattern≥4.Multivariate analysis showed that membranous urethra length(odds ratio[OR]:0.79,P=0.0376)and extracapsular extension of the apex(OR:4.58,P=0.0226)on magnetic resonance imaging(MRI)and positive periurethral tissue(OR:17.85,P<0.0001)were associated with PSM of the apex.PSM with Gleason pattern≥4 is significantly predictive of BCR.Intraoperative frozen sections of periurethral tissue can independently predict PSM,whereas sections of the bladder neck and dorsal vein could not.Pathologic examination of these samples may help predict significant PSM in patients undergoing robot-assisted laparoscopic prostatectomy with preservation of functional outcomes.

Intra-operative frozen section diagnosis of breast lesions:a retrospective analysis of 13 243 Chinese patients

背景尽管为胸肿瘤学的 cytological 方法在最近的十年被使用了， intra 起作用的冻结的节在做治疗学的决定一直在起一个重要作用。我们分析了冻结的节的一个大系列最后 15 年为汉语诊断在内的胸损害的盒子。经验被期望与胸 lesions.Methods 增加盒子的诊断精确性数据从连续与在 1988 ～ 2002 之间的 intra 起作用的冻结的节诊断的胸损害的 13243 个盒子与在由盒子举止的一种情况中的石蜡节相比。原因假否定、积极诊断象一样推迟诊断是 analyzed.Results 117 个盒子(0.9%) 虚伪地被诊断，与一个假积极盒子和 116 个假否定盒子。47 个盒子(0.4%) 的诊断被推迟。几损害的比例有 patients'ages 的特征。损害的六种类型(假侵略，仙子乳突淋瘤，乳头管的腺瘤，红润的 adenosis ， sclerosing adenosis ，和淀粉粒质房间肿瘤)可以导致假积极，并且四种类型(词法变化反应化疗，很好区分的乳突的癌，侵略的小叶片的癌，并且管状的癌)到一假否定。粗野、显微镜的调查结果可能在在三的显微镜、临床的调查结果打的损害(光线的疤和红润的 adenosis ) 的二种类型是不一致的(ganulomatous 乳腺炎乳房，管 ectasia，和胖坏死) ，并且三种类型(丰富的胖或硬术的纸巾；边线损害和变化化疗以后) 错误地是可能的 Intra 起作用的冻结的节能精确地识别的 classified.Conclusions 在许多例子的胸损害，由于诊断限制的更诊断的经验和理解，导致更少错误。

术中冰冻病理诊断对眼睑肿物切除的价值探讨及病理类型分析

目的 探讨送检术中冰冻病理诊断(frozen sections, FS)的眼睑肿物病理类型及其对眼睑肿物和切缘的诊断准确率,分析FS与石蜡病理诊断不一致的常见原因。方法 选取2016年12月至2021年12月首都医科大学附属北京同仁医院送检FS眼睑肿物标本561份,分析眼睑肿物的病理类型,并以石蜡病理诊断为金标准,分析FS对眼睑肿物和切缘的诊断准确率。结果 561份标本中,左眼280份,右眼281份;上睑225份,下睑311份,内眦18份,外眦7份;肿物最大直径1~35 mm,平均(15.1±9.4)mm。其中良性病变165份(29.4%),位居前三位的分别为炎性病变、色素痣和脂溢性角化病;恶性病变396份(70.6%),位居前三位的分别为基底细胞癌、皮脂腺癌和鳞状细胞癌。FS对肿瘤和切缘的诊断准确率分别为97.1%、99.3%,肿瘤延迟诊断率为6.2%。肿瘤诊断不一致类型为误分类(60.0%,9/15)、假阴性(26.7%,4/15)及假阳性(13.3%,2/15)。诊断不一致的原因为解读失误(73.3%,11/15)、制片失误(26.7%,4/15)。结论 送检FS的眼睑肿物以恶性病变为主,并以基底细胞癌和皮脂腺癌多见;FS对眼睑肿物及切缘均具有较高的诊断准确率,能很好地指导手术开展,皮脂腺癌和恶性肿瘤的特殊亚型是与石蜡病理诊断不一致的主要因素,切片深度不够是导致漏诊和诊断不充分的主要原因,日常工作中对于可疑复发及较小的肿瘤应给予充分评估。

雏鸡脂肪肝冰冻切片制作过程中苏丹Ⅲ染色条件的探索

为探讨在雏鸡脂肪肝冰冻切片制作过程中苏丹Ⅲ染色的最佳条件,取7日龄雏鸡的肝脏组织,用冰冻切片机制作成切片,然后设置不同条件,用苏丹Ⅲ染色液对切片进行染色,观察染色效果,进行对比.结果表明:用苏丹Ⅲ染料染色9 min明显好于5 min和30 min,70%乙醇溶液冲洗5次明显好于2次和9次,蓝化3 min比未蓝化效果更佳.将肝组织冰冻切片标本用苏丹Ⅲ浸染9 min、70%乙醇溶液冲洗5次、苏木素浸染1 min、在自来水中蓝化3 min,肝组织的脂肪部位被明显染成橘红色,观察效果最好.

细针抽吸活检与术中快速冰冻切片在甲状腺结节诊断中的应用分析

目的:探讨细针抽吸活检(FNAB)细胞学和术中快速冰冻切片组织学检查在甲状腺结节中的诊断应用价值。方法:回顾性分析2021年4月至2023年4月苏州市相城人民医院收治的180例甲状腺结节患者临床病理资料,对比分析FNAB细胞学与术中快速冰冻切片组织学诊断的准确度、敏感度、特异度。结果:FNAB细胞学诊断良性病变52例,恶性病变128例,检查准确度、敏感度、特异度分别为92.2%、91.1%、95.6%;术中快速冰冻切片组织学诊断良性病变55例,恶性病变125例,检查准确度、敏感度、特异度分别为91.1%、88.9%、97.8%。2种诊断方法结果比较,差异无统计学意义(P>0.05)。结论:FNAB细胞学具有操作简便、准确率高和标本获取率高等特点,术中快速冰冻切片具有高时效性、边缘定位清晰等特点,二者相互印证,互为补充,对甲状腺结节性质的诊断具有重要的临床应用价值。

眼部肿瘤术中冰冻切片病理诊断分析

目的通过分析送检冰冻切片检查的眼部肿瘤特点,探究冰冻切片检查在眼部肿瘤诊疗中的应用价值,为临床诊断和治疗眼睑肿瘤提供参考依据。方法选取2015年10月至2023年4月在山东省眼科医院行眼部肿瘤切除治疗且行术中冰冻切片检查和石蜡切片病理检查的41例患者作为研究对象,分析患者的病理诊断结果和所有临床资料。结果41例患者中男18例,女23例;年龄32~85岁,平均(63.15±13.27)岁。恶性肿瘤患者年龄大于良性肿瘤患者,差异有统计学意义(P<0.05)。经术中冰冻切片病理诊断确诊34例,准确度为82.9%,其中完全符合19例(46.3%),基本符合15例(36.6%);延迟诊断7例,延迟诊断率为17.1%。本研究中诊断为眼部恶性肿瘤的有26例(63.4%),其中经冰冻切片确诊的有24例,恶性肿瘤中最常见的是基底细胞癌14例(53.8%),其次是皮脂腺癌8例(30.8%);诊断为眼部良性肿瘤的有15例(36.6%),其中经冰冻切片确诊的有10例,良性肿瘤中最常见的是炎性病变5例(33.3%),色素痣3例(20.0%)和真皮纤维组织瘤样增生2例(13.3%)。术中冰冻切片病理诊断平均完成时间为(29.54±8.39)min。结论术中冰冻切片病理诊断准确率相对较高且耗时短,可帮助临床医生术中迅速判断肿瘤性质,确定手术切缘是否残留肿瘤细胞,对手术切缘进行控制,值得在眼部肿瘤术中辅助诊断中推广应用。