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https://www.readbyqxmd.com/read/28877063/sentinel-lymph-nodes-in-classic-invasive-lobular-carcinoma-of-the-breast-cytokeratin-immunostain-ensures-detection-and-precise-determination-of-extent-of-involvement
#1
Ami Patel, Timothy D'Alfonso, Esther Cheng, Syed A Hoda
The assessment of sentinel lymph nodes (SLN) on hematoxylin and eosin (H&E)-stained sections in cases of classic type of invasive lobular carcinoma (cILC) is considered unreliable, particularly in cases with minimal involvement, that is by either isolated tumor cells (pN0i+) or micrometastases (pN1mi). Although the impact of minimal SLN involvement has been shown to be insignificant in most clinical trials (even though cILC was either under-represented or not separated in the respective cohorts), the results of MIRROR trial did emphasize the need for additional therapy in cases with minimally involved SLN to ensure improved disease-free survival...
September 4, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28872547/fdg-pet-ct-in-2-cases-of-renal-metastasis-from-esophageal-squamous-cell-carcinoma
#2
Qian Zhao, Aisheng Dong, Bo Yang, Yang Wang, Changjing Zuo
Clinically, renal metastasis from esophageal squamous cell carcinoma is uncommon. We present 2 cases of renal metastasis from esophageal squamous cell carcinoma with enhanced CT and FDG PET/CT findings. In the first case, right kidney and right renal hilum were the only known metastatic sites. In the second case, bilateral kidneys were the only known metastatic sites. All the renal metastatic tumors appeared as hypovascular and hypoattenuating masses involving both the renal cortex and medulla on enhanced CT and intense FDG uptake on FDG PET/CT...
September 1, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28757600/relative-computed-tomography-ct-enhancement-value-for-the-assessment-of-microvascular-architecture-in-renal-cell-carcinoma
#3
Ai-Mei Ouyang, Zhao-Long Wei, Xin-You Su, Kun Li, Dong Zhao, De-Xin Yu, Xiang-Xing Ma
BACKGROUND To investigate the correlation between the relative computed tomography (CT) enhancement value and the microvascular architecture in different pathologic subtypes of renal cell carcinoma (RCC). MATERIAL AND METHODS This retrospective study included 55 patients with pathologically confirmed RCC. Immunohistochemistry for CD34 was performed for all surgical specimens. Microvascular architecture parameters (density, area, diameter, and perimeter) for the microvessels and the microvessels with lumen were determined...
July 31, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28713756/dental-invasion-by-adenoid-cystic-carcinoma-of-the-oral-cavity
#4
Marco Guzzo, Pasquale Quattrone, Roberto Bianchi, Sarah Colombo
Cancer progression through the mandible bone is still questioned. Once the tumor has eroded the cortex, it can extend vertically and laterally. It usually spreads in the medullary spaces and finally affects the alveolar nerve. The presence of the teeth has been considered as a relative barrier to cancer infiltration until now. Herein, we report an uncommon case of dental root invasion by adenoid cystic carcinoma of the floor of the mouth.
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28694749/variability-of-antioxidant-and-biological-activities-of-rhus-tripartitum-related-to-phenolic-compounds
#5
Hanène Ben Miled, Mariem Saada, Ines Jallali, Zaineb Ben Barka, Mounira Tlili, Hichem Alimi, Mohsen Sakly, Khémais Ben Rhouma, Manef Abderrabba, Hafedh Abdelmelek, Olfa Tebourbi, Riadh Ksouri
Rhus species are known in traditional medicine for their therapeutic virtue and their extracts showed numerous important properties including antimalarial, antimicrobial, antiviral, and hypoglycemic and anticonvulsant activities. Rhus tripartitum (Ucria) is a medicinal plant widely used in Tunisia folk medicine against chronic diarrhea and gastric ulcer. This study was designed to examine in vitro and ex vivo antioxidant, anti-inflammatory and anticancer activities of four extracts of Rhus tripartitum root cortex with increasing solvent polarity (hexane, dichloromethane, methanol and water)...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28693225/dynamic-mri-follow-up-of-radiation-encephalopathy-in-the-temporal-lobe-following-nasopharyngeal-carcinoma-radiotherapy
#6
Xiaofeng Zhou, Xiaofang Liao, Xiaoqiu Ren, Kewei Xiang, Qiongge Hu, Minming Zhang, Huijuan He, Li Shen, Qichun Wei
The natural course of radiation encephalopathy following nasopharyngeal carcinoma (NPC) radiotherapy remains poorly understood. The present study aimed to investigate the magnetic resonance imaging (MRI) characteristics and evolution of radiation encephalopathy. A series of 162 follow-up MRI examinations from 68 NPC patients with radiation encephalopathy in the temporal lobes were analyzed retrospectively. Each component of radiation encephalopathy was defined as follows: i) contrast enhanced lesions were enhanced lesions on contrast enhanced T1-weighted images (T1WI); ii) white matter lesions were lesions of homogeneous hyperintensity on T2-weighted images (T2WI) and hypointensity on T1WI; iii) cysts were round or oval well-defined lesions of hyperintensity on T2WI; iv) hemosiderin deposition were nodular or annular hypointense lesions with lower hypointense than normal white matter on both T1WI and T2WI; v) gray matter lesions were defined as disruption or erosion of hyperintensity in the cortex on T2WI...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28672049/diagnostic-and-prognostic-role-of-sf1-igf2-ki67-p53-adiponectin-and-leptin-receptors-in-human-adrenal-cortical-tumors
#7
Anna Babińska, Rafał Pęksa, Piotr Wiśniewski, Renata Świątkowska-Stodulska, Krzysztof Sworczak
BACKGROUND: The authors have examined the immunohistochemical expression of several proteins and their relationship with adrenal cortical carcinoma (ACC) diagnosis and progression. MATERIALS AND METHODS: A total of 83 patients with benign and malignant adrenal cortex tumors operated on in a single center were included in the study. Expression of the following proteins was examined: steroidogenic factor 1 (SF1), insulin growth factor 2 (IGF2), Ki67, p53, as well as adiponectin (Adipo R1, Adipo R2), and leptin (Ob-R) receptors...
September 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28669081/distribution-of-vascular-patterns-in-different-subtypes-of-renal-cell-carcinoma-a-morphometric-study-in-two-distinct-types-of-blood-vessels
#8
Amparo Ruiz-Saurí, V García-Bustos, E Granero, S Cuesta, M A Sales, V Marcos, A Llombart-Bosch
To analyze the presence of mature and immature vessels as a prognostic factor in patients with renal cell carcinoma and propose a classification of renal cancer tumor blood vessels according to morphometric parameters. Tissue samples were obtained from 121 renal cell carcinoma patients who underwent radical nephrectomy. Staining with CD31 and CD34 was used to differentiate between immature (CD31+) and mature (CD34+) blood vessels. We quantified the microvascular density, microvascular area and different morphometric parameters: maximum diameter, minimum diameter, major axis, minor axis, perimeter, radius ratio and roundness...
July 1, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28647863/evaluation-of-cortical-mandibular-bone-in-patients-with-oral-squamous-cell-carcinoma
#9
Gustavo Davi Rabelo, Claudia Coutinho-Camillo, Luiz Paulo Kowalski, Nathalie Portero-Muzy, Jean-Paul Roux, Pascale Chavassieux, Fabio Abreu Alves
OBJECTIVES: The aim of the study was to evaluate the mandible cortical bone changes in patients with oral squamous cell carcinoma (OSCC). PATIENTS AND METHODS: Twenty patients who underwent some mandibular bone removal as part of the treatment of OSCC had bone samples collected in two parts: in the proximity of the tumor (BPT) and in the surgical margin (BEP). Cortical microarchitecture was analyzed trough micro-computed tomography, together with texture analysis, followed by microcrack evaluation in histological sections and gene expression of RANK, RANKL, OPG, and sclerostin by quantitative polymerase chain reaction...
June 24, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28630395/cerebral-infarction-by-paradoxical-gas-embolism-during-laparoscopic-liver-resection-with-injury-of-the-hepatic-vessels-in-a-patient-without-a-right-to-left-systemic-shunt
#10
Toshiyasu Kawahara, Masahiro Hagiwara, Hiroyuki Takahashi, Mariko Tanaka, Koji Imai, Jun Sawada, Takayuki Kunisawa, Hiroyuki Furukawa
BACKGROUND Carbon dioxide (CO2) is believed to be the safest gas for laparoscopic surgery, which is a standard procedure. We experienced severe cerebral infarction caused by paradoxical CO2 embolism during laparoscopic liver resection with injury of the hepatic vessels despite the absence of a right-to-left systemic shunt. CASE REPORT A 60-year-old man was diagnosed with hepatocellular carcinoma in the right hepatic lobe secondary to alcoholic liver disease. We planned the laparoscopy-assisted liver resection...
June 20, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28605527/effect-of-transcranial-direct-current-stimulation-of-the-motor-cortex-on-visceral-pain-in-patients-with-hepatocellular-carcinoma
#11
Nagwa Mostafa Ibrahim, Khaled Mohamed Abdelhameed, Shereen Mamdouh Mohamed Kamal, Eman Mohamed Hussein Khedr, Hassan Ibrahim Mohamed Kotb
Objective. : Hepatocellular carcinoma (HCC) is frequently associated with visceral pain. Transcranial direct current stimulation (tDCS) has been proven to reduce chronic pain; however, its effectiveness in malignant visceral pain is unknown. This study aimed to investigate the effects of tDCS in patients with visceral pain due to HCC. Design. : This is a randomized, sham-controlled, double-blind, prospective study. Forty patients with visceral pain due to HCC were enrolled and randomly assigned into two groups: a real and a sham group; tDCS was applied over the primary motor area (M1) for 10 consecutive days (2 mA, 30 minutes)...
June 12, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28600877/stepwise-algorithm-using-computed-tomography-and-magnetic-resonance-imaging-for-diagnosis-of-fat-poor-angiomyolipoma-in-small-renal-masses-development-and-external-validation
#12
Hajime Tanaka, Yasuhisa Fujii, Hiroshi Tanaka, Junichiro Ishioka, Yoh Matsuoka, Kazutaka Saito, Sho Uehara, Noboru Numao, Takeshi Yuasa, Shinya Yamamoto, Hitoshi Masuda, Junji Yonese, Kazunori Kihara
OBJECTIVES: To develop a stepwise diagnostic algorithm for fat-poor angiomyolipoma in small renal masses. METHODS: Two cohorts of small renal masses <4 cm without an apparent fat component that was pathologically diagnosed were included: 153 cases (18 fat-poor angiomyolipomas/135 renal cell carcinomas) for model development and 71 cases (seven fat-poor angiomyolipomas/59 renal cell carcinomas/5 oncocytomas) for validation. Dynamic contrast-enhanced computed tomography, magnetic resonance imaging and clinical findings were analyzed...
July 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28567326/renal-myxoma-an-incidental-finding
#13
Parth Thakker, Tam Ramsey, Fernando Navarro
Myxomas are mesenchymal tumors commonly found in the heart and skin. Renal myxomas are rare, having only been documented 14 times. Our case is a 55-year-old woman who presented to our clinic after a right renal mass was incidentally found on CT. Evaluation with MRI showed a mass that appeared to arise from the supero-medial cortex of the right kidney. As the imaging was concerning for renal cell carcinoma, the patient underwent a partial nephrectomy. Microscopic examination showed a well-circumscribed mass with polygonal to spindle-shaped cells in a granular eosinophilic cytoplasm...
July 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28566623/moutan-cortex-protects-hepatocytes-against-oxidative-injury-through-amp-activated-protein-kinase-pathway
#14
Mi Hee Jang, Kwang-Youn Kim, Phil Hyun Song, Su Youn Baek, Hye Lim Seo, Eun Hye Lee, Suel-Gi Lee, Kwang Il Park, Soon-Cheol Ahn, Sang Chan Kim, Young Woo Kim
Moutan Cortex, the root bark of Paeonia suffruticosa ANDREWS in Ranunculaceae, has widely demonstrated analgesic, anti-spasmodic, and anti-inflammatory effects in various cancer and immune cell lines. Oxidative stress is associated with development of several diseases, including liver disease. We prepared the water extract of Moutan Cortex (MCE) to investigate the cytoprotective activities and its mechanism. MCE protected hepatocytes from arachidonic acid (AA)+iron induced oxidative stress, as indicated by reactive oxygen species (ROS) production and cell viability analysis...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28504543/clear-cell-renal-cell-carcinoma-identifying-the-loss-of-the-y-chromosome-on-multiphasic-mdct
#15
Jonathan R Young, Heidi Coy, Michael Douek, Pechin Lo, James Sayre, Allan J Pantuck, Steven S Raman
OBJECTIVE: The objective of our study was to investigate whether multiphasic MDCT enhancement can help identify clear cell renal cell carcinomas (RCCs) with the loss of the Y chromosome. MATERIALS AND METHODS: We derived a cohort of 43 clear cell RCCs in men who underwent preoperative four-phase renal mass MDCT from October 2000 to August 2013. Each lesion was segmented in its entirety on axial images. A computer-assisted detection algorithm selected a 0.5-cm-diameter region of maximal attenuation within each lesion in each phase...
August 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28477311/update-on-adrenal-tumours-in-2017-world-health-organization-who-of-endocrine-tumours
#16
REVIEW
Alfred King-Yin Lam
The fourth edition of the World Health Organization (WHO) classification of endocrine tumours contains substantial new findings for the adrenal tumours. The tumours are presented in two chapters labelled as "Tumours of the adrenal cortex" and "Tumours of the adrenal medulla and extra-adrenal paraganglia." Tumours of the adrenal cortex are classified as cortical carcinoma, cortical adenoma, sex cord stromal tumours, adenomatoid tumour, mesenchymal and stromal tumours (myelolipoma and schwannoma), haematological tumours, and secondary tumours...
May 6, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28467685/structural-alterations-in-tumor-draining-lymph-nodes-before-papillary-thyroid-carcinoma-metastasis
#17
Andrew M Hinson, Nicole A Massoll, Lee Ann Jolly, Brendan C Stack, Donald L Bodenner, Aime T Franco
BACKGROUND: The purpose of this study was to define and characterize the thyroid tumor-draining lymph nodes in genetically engineered mice harboring thyroid-specific expression of oncogenic Braf(V600E) with and without Pten insufficiency. METHODS: After intratumoral injection of methylene blue, the lymphatic drainage of the thyroid gland was visualized in real time. The thyroid gland/tumor was resected en bloc with the respiratory system for histological analysis...
August 2017: Head & Neck
https://www.readbyqxmd.com/read/28467098/imaging-features-of-primary-renal-lymphoma
#18
Qingqiang Zhu, Wenrong Zhu, Jingtao Wu, Wenxin Chen
Background Cases of primary renal lymphoma (PRL) are quite rare and are often mistaken for renal cell carcinoma. Purpose To determine the multislice computed tomography (MSCT) and magnetic resonance imaging (MRI) characteristics of PRL. Materials and Methods Twenty-three patients with PRL were identified by CT and MRI, and their tumor characteristics were assessed. Results Tumors exhibited single or multifocal nodules (n = 19) and diffuse renal enlargement (n = 4). Twenty-two tumors exhibited an infiltrative appearance...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28456766/understanding-mitotane-mode-of-action
#19
U Waszut, P Szyszka, D Dworakowska
Adrenocortical carcinoma is a rare disease with poor prognosis. Mitotane is the most effective agent in post-operative treatment (or when inoperable). It selectively limits growth and bioactivity of adrenal tissue. Despite 60 years of use, the basis for its action has yet to be convincingly established. This review summarizes current knowledge of mitotane effects, based on studies on adrenal tissue and primary cell cultures, with emphasis on more recent studies of cell lines. We consider features of the adrenal cortex that might explain mitotane selectivity, and review effects on non-adrenal cells...
February 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28361951/qualitative-and-quantitative-imaging-evaluation-of-renal-cell-carcinoma-subtypes-with-grating-based-x-ray-phase-contrast-ct
#20
Margarita Braunagel, Lorenz Birnbacher, Marian Willner, Mathias Marschner, Fabio De Marco, Manuel Viermetz, Susan Notohamiprodjo, Katharina Hellbach, Sigrid Auweter, Vera Link, Christine Woischke, Maximilian F Reiser, Franz Pfeiffer, Mike Notohamiprodjo, Julia Herzen
Current clinical imaging methods face limitations in the detection and correct characterization of different subtypes of renal cell carcinoma (RCC), while these are important for therapy and prognosis. The present study evaluates the potential of grating-based X-ray phase-contrast computed tomography (gbPC-CT) for visualization and characterization of human RCC subtypes. The imaging results for 23 ex vivo formalin-fixed human kidney specimens obtained with phase-contrast CT were compared to the results of the absorption-based CT (gbCT), clinical CT and a 3T MRI and validated using histology...
March 31, 2017: Scientific Reports
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