Diffuse intrathyroidal dissemination of papillary thyroid carcinoma with no stromal fibrosis at presentation: A pattern of aggressive differentiated thyroid carcinoma

xlomafota13 shared this article with you from Inoreader Diffuse intrathyroidal dissemination of papillary thyroid carcinoma with no stromal fibrosis at presentation: A pattern of aggressive differentiated thyroid carcinoma Via radioactive iodine Pathol Res Pract. 2021 Jun 23;224:153510. doi: 10.1016/j.prp.2021.153510. Online ahead of print. ABSTRACT BACKGROUND: Multifocal Papillary thyroid carcinoma (PTC) is a very common condition. In certain cases, it is possible to find tens to hundreds of foci with a diffuse intrathyroidal spread in the whole thyroid with no stromal fibrosis. Herein, PTC with such features was nominated as diffuse disseminate variant (DDV) PTC. The aim of the present study was to investigate the histop athological characteristics, molecular features, and biological behavior of DDV and compare the characteristics of DDV to diffuse sclerosing variant (DSV) PTC. MATERIALS AND METHODS: Thirty-four DDV and 23 DSV cases were identified from consecutive surgical specimens diagnosed with PTC between 2014 and 2019. Targeted next-generation sequencing (NGS) was applied to investigate the mutation spectrum of DDV and DSV. RESULTS: DDV was commonly diagnosed in young patients and exhibited high rates of LNM (100 %), ETE (61.8 %), and LVI (44.1 %); however, they did not differ from DSV (P > 0.05). Male patients were more frequently diagnosed with DDV than with DSV (P < 0.001). The size of the largest tumor was significantly greater in DDV than in DSV patients (P = 0.008). In addition, BRAFV600E mutation was significantly higher in the DDV than in the DSV group (P < 0.001). The RET/PTC rearrangement was more frequent in DSV than in DDV patients; however, the diff erence was not statistically significant (P = 0.106). Moreover, DDV had a higher rate of recurrence compared to DSV treated with the same protocol (total thyroidectomy followed by radioactive iodine (RAI) treatment) (47.1 % and 8.7 %, P = 0.002). CONCLUSIONS: DDV should be regarded as a novel aggressive variant of PTC with distinct clinicopathological characteristics, aggressive biological behaviors, and a high recurrence. PMID:34329840 | DOI:10.1016/j.prp.2021.153510 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

A Study to Assess the Effect of Non-asthmatic Allergic Rhinitis on Pulmonary Functions-A Prospective Case-control Study

xlomafota13 shared this article with you from Inoreader A Study to Assess the Effect of Non-asthmatic Allergic Rhinitis on Pulmonary Functions-A Prospective Case-control Study Via Otolaryngology Indian Abstract Allergic rhinitis, beginning from childhood, is a global health problem. According to the literature, allergic rhinitis has been found association with asthma and other allergic manifestations. In this study we like to find out the significance and prognostic importance of spirometry in allergic rhinitis. The study was carried out over a period of 2 years, with 63 cases and controls each. Subjects in the age of 20–55 years with allergic rhinitis and SFAR score of > / = 7 were included as a case. Participants were interviewed and sent for spirometry. Controls were recruited from the retrospective data of healthy individuals with spirometry parameters done for health checkup. These controls had an SFAR score of < 7. All the data obtained were analyzed and compared between cases and controls. The mean age of the cases and controls were 33.17 ± 10.817 and 44.41 ± 7.4, respectively. Majority of cases and controls were males (60 .3% and 57.1%). A statistically significant difference in FEF25-75% among cases and controls was noted (p = 0.00), thus proving probability of developing small airway obstruction in subjects with allergic rhinitis. Subjects with allergic rhinitis have a probability of developing small airway obstruction with subclinical changes, hence necessitating the need of regular follow-up. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Acupuncture for radiation-induced toxicity in head and neck squamous cell carcinoma: a systematic review based on PICO criteria

xlomafota13 shared this article with you from Inoreader Acupuncture for radiation-induced toxicity in head and neck squamous cell carcinoma: a systematic review based on PICO criteria Via http://link.springer.com/journal/405,European archives of oto-rhino-laryngology,The European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino Eur Arch Otorhinolaryngol. 2021 Jul 31. doi: 10.1007/s00405-021-07002-1. Online ahead of print. ABSTRACT PURPOSE: In head and neck squamous cell carcinoma (HNSCC), the potential mitigating effect of complementary medicine interventions such as acupuncture for radiation-induced toxicity is unknown. This study aimed to assess the impact of acupuncture on the incidence and degree of severity of common radiation-induced side effects. METHODS: In accordance with pre-specified PICO criteria, a systematic review was performed. Two electronic databases (Medline and Embase) were searched over a 10-year time frame (01/01/10 to 30/09/20). Patients undergoing a curatively intended, radiation-based treatment for histologically confirmed squamous cell carcinoma of the nasopharynx, oropharynx, larynx, hypopharynx and oral cavity represented the target population of our study. Accurate information on the acupuncture methodology was reported. All included articles were evaluated to identify any potential source of bias RESULTS: Five papers were included in our qualitative analysis, for a total of 633 subjects. Compliance to per-protocol defined schedule of acupuncture sessions was high, ranging from 82 to 95.9%. Most patients (70.6%) were randomly allocated to receive acupuncture for its potential preventive effect on xerostomia. The large heterogeneity in study settings and clinical outcomes prevented from performing a cumulative quantitative analysis, thus no definitive recommendations can be provided. CONCLUSIONS: Although shown to be feasible and safe, no firm evidence currently supports the use of acupuncture for the routine management of radiation-induced toxicity in HNSCC. PMID:34331571 | DOI:10.1007/s00405-021-07002-1 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Comparison of preoperative diagnostic accuracy of fine needle aspiration and core needle biopsy in parotid gland neoplasms

xlomafota13 shared this article with you from Inoreader Comparison of preoperative diagnostic accuracy of fine needle aspiration and core needle biopsy in parotid gland neoplasms Via http://link.springer.com/journal/405,European archives of oto-rhino-laryngology,The European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino Eur Arch Otorhinolaryngol. 2021 Jul 31. doi: 10.1007/s00405-021-07022-x. Online ahead of print. ABSTRACT BACKGROUND: Fine needle aspiration (FNA) and core needle biopsy (CNB) are two commonly used approaches for the diagnosis of suspected neoplastic parotid gland lesions. We aimed to compare the diagnostic efficiency of FNA and CNB performed with ultrasound guidance preoperatively for the diagnosis of parotid neoplasms. METHODS: We retrospectively analysed the preoperative specimens of 113 patients (66 FNA, 47 CNB) who underwent surgical excision at our institute between 2014 and 2017. Patient selection was based on lesion type and dimension, preliminary and final pathology, imaging characteristics, clinical course, and treatment data for accurate statistical analysis. The final diagnosis was based on surgery in all of the patients. We compared the diagnostic accuracy of FNA and CNB regarding the correct tissue-specific diagnosis of benign and malignant tumours. The recurrence and complication rates were analysed to determine the safety of each technique. RESULTS: Among the 113 patients, the average follow-up period was 65.4 (50-88) months. Seventy-one patients (62.8%) were males, and the median age was 50 years. The most common type of surgery was superficial parotidectomy (83.2%), and the median tumour size was 30.0 mm. Pleomorphic adenoma was the most frequent neoplasm. The diagnostic rates of preoperative pathological evaluation of FNA and CNB samples were 68.2% and 91.5%, respectively. The sensitivity, specificity, and positive predictive value of FNA for detecting malignant lesions were 40, 100, and 100%, respectively, and those of CNB were 100, 100, and 100%, respectively. Only one complication occurred (haematoma) in the biopsy area after CNB. No recurrences were seen after CNB and FNA during the follow-up period. CONCLUSION: Our findings suggest that the diagnostic ability, sensitivity, and specificity of CNB are excellent compared with those of FNA. The only disadvantage of CNB is the need for experienced staff and good-quality equipment. The complication rates of each technique are very low, and the risk of tumour tract seeding is controversial. CNB should be considered the technique of choice when a nodule is detected in the parotid glands. PMID:34331572 | DOI:10.1007/s00405-021-07022-x View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Variation in spatial distance between the lumbar interlaminar window and intervertebral disc space during flexion-extension

xlomafota13 shared this article with you from Inoreader Variation in spatial distance between the lumbar interlaminar window and intervertebral disc space during flexion-extension Via radiol anat Surg Radiol Anat. 2021 Jul 30. doi: 10.1007/s00276-021-02809-3. Online ahead of print. ABSTRACT PURPOSE: Knowledge of interlaminar space is important for undertaking percutaneous endoscopic discectomy via an interlaminar approach (PED-IL). However, dynamic changes in the lumbar interlaminar space and the spatial relationship between the interlaminar space and intervertebral disc space (IDS) are not clear. The aim of this study was to anatomically clarify the changes in inter laminar space height (ILH) and variation in distance between the two spaces during flexion-extension of the lumbar spine in vitro. METHODS: First, we used a validated custom-made loading equipment to obtain neutral, flexion, and extension 3D models of eight lumbar specimens through 3D reconstruction software. Changes in ILH (ILH, IL-yH, IL-zH) and distances between the horizontal plane passing through the lowest edge of the lamina of the superior lumbar vertebrae and the horizontal plane passing through the lowest position of the trailing edge of the same-level IDS (DpLID) at L3/4, L4/5 and L5/S1 were examined on 3D lumbar models. RESULTS: We found that ILH was greater at L4/5 than at L3/4 and L5/S1 in the neutral position, but the difference was not significant. In the flexion position, ILH was significantly more than that in neutral and extension positions at L3/4, L4/5, and L5/S1. There were significantly more DpLID changes from neutral to flexion than that from neutr al to extension at all levels (L3/4, L4/5, L5/S1). CONCLUSION: These findings demonstrated level-specific changes in ILH and DpLID during flexion-extension. The data may provide a better understanding of the spatial relationship between lumbar interlaminar space and IDS, and aid the development of segment-specific treatment for PED-IL. PMID:34331075 | DOI:10.1007/s00276-021-02809-3 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Nile tilapia skin (Oreochromis niloticus) for burn treatment: ultrastructural analysis and quantitative assessment of collagen

xlomafota13 shared this article with you from Inoreader Nile tilapia skin (Oreochromis niloticus) for burn treatment: ultrastructural analysis and quantitative assessment of collagen Via histochem Acta Histochem. 2021 Jul 28;123(6):151762. doi: 10.1016/j.acthis.2021.151762. Online ahead of print. ABSTRACT Nile tilapia (Oreochromis niloticus) skin is a well-known biomaterial used as an occlusive dressing for burn treatment. It is also an inexpensive and important source of collagen. This study aims to describe the ultrastructural aspects of Nile tilapia skin, assess its collagen amount and organization, and compare quantitative methods of histochemical and immunohistoc hemical analysis (in all sterilization steps for use in burn dressings). One sample (0.5 × 0.5 cm) of ten different fish skins was divided in four groups: in natura skin (IN), chemical sterilization (CH), additional irradiation (30 kGy) (IR), and skins used in burn treatment (BT) to compare histochemical and immunohistochemical findings of collagen amount and describe ultrastructural aspects through scanning electron microscopy. The amount of type I collagen decreased during sterilization and clinical use owing to gradual reduction of immunostaining (anti-collagen-I) and decreasing fiber thickness of the collagen, when compared to type III (Picrosirius-red-polarized light). The collagen fibers were rearranged at each sterilization step, with a low collagen percentage and large structural disorganization in BT. The amount of type-I collagen was further reduced after BT (p < 0.05). Both the methods did not exhibit a quantified value difference (p = 0.247), and a positive correlati on (r = 0.927; 95 % CI = 0.720-0.983) was observed between them, with concordance for collagen quantification in similar samples, presenting a low systematic error rate (Dalberg coefficient: 6.70). A significant amount of type-I collagen is still observed despite sterilization, although clinical application further reduces type I collagen. Its quantification can be performed both by immunohistochemistry and/or Picrosirius Red reliably. PMID:34332229 | DOI:10.1016/j.acthis.2021.151762 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Extracapsular extension, pathologic node status, and adjuvant treatment in primary surgery patients with human papillomavirus‐mediated oropharyngeal cancer: A national hospital‐based retrospective cohort analysis

xlomafota13 shared this article with you from Inoreader Extracapsular extension, pathologic node status, and adjuvant treatment in primary surgery patients with human papillomavirus‐mediated oropharyngeal cancer: A national hospital‐based retrospective cohort analysis Via Head & Neck Abstract Background The significance of extracapsular extension (ECE) and adjuvant treatment paradigm in patients with surgically managed human papillomavirus-positive (HPV+) oropharyngeal cancer (OPC) is debated. Methods National, hospital-based, retrospective cohort study of 2663 patients pN+ HPV+ OPC who underwent primary surgery. Results Patients with ECE had a 1.74-times risk of death (95% confidence interval [CI]: 1.26–2.40, p = 0.001) compared to patients without ECE. Among patients with pN1, ECE-positive disease, risk of overall mortality was similar across treatment paradigms (surgery alone: ref; adjuvant radiation therapy [RT]: aHR: 0.81; 95% CI: 0.36–1.85; p = 0.62; adjuvant CRT: aHR: 0.66; 95% CI: 0.34–1.32; p = 0.24). Patients with pN2 ECE-positive disease treated with adjuvant RT alone exhibited similar risk of all-cause mortality (hazard ratio: 1.04, 95% CI: 0.24–4.47, p = 0.96) compared to adjuvant chemoradiation (CRT). In patients with advanced, ECE-positive disease (e.g., pT3-T4pN2), adjuvant CRT did not reduce the risk of overall mortality relative to adjuvant RT. Conclusion Although pathologic ECE negatively predicts for survival in patients with HPV+ OPC, our analyses support expansion of postoperative de-intensification clinical trial eligibility criteria in patients with ECE-positive disease. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.