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https://www.readbyqxmd.com/read/28812465/melanotic-neuroectodermal-tumor-of-infancy-presenting-with-fast-growing-scrotal-swelling-a-case-report-and-literature-review
#1
Corinthia Fabien-Dupuis, Benjamin Niver, Nick Shillingford, Larry Wang, Paul J Kokorowski, Shengmei Zhou
Testicular melanotic neuroectodermal tumor of infancy (MNTI) is extremely rare, with 2 cases reported in the literature. Its rarity and rapid and infiltrative growth pattern pose a diagnostic challenge. A previously healthy 3-month-old male, presented with a history of worsening left hemiscrotal swelling for 1 week. An outside ultrasound was suggestive of testicular torsion. Left orchiectomy demonstrated a mass occupying almost entire testicle with a variegated cut surface, with areas of pigmentation, necrosis, and hemorrhage...
September 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28808484/er%C3%AE-and-er%C3%AE-co-expression-an-indicator-of-aggressive-tumors-and-hormonal-sensitivity
#2
Mohamed Oueslati, Ilhem Bittaieb, Nadia Sassi, Awatef Ben Jemaa, Amor Gamoudi, Khaled Rahal, Ridha Oueslati
The estrogen receptors (ERs) ERα and ERβ are important factors in breast cancer progression. Nevertheless, the molecular interplay between ERα and ERβ and its clinical significance in breast cancer is controversial. The establishment of a clear association is required; therefore, the current study analyzed the expression patterns of ERα and ERβ in 32 breast tumor tissues using reverse transcription-quantitative polymerase chain reaction. Furthermore, human epidermal growth factor receptor 2 (HER2) and the Ki-67 status were detected by immunohistochemistry...
August 2017: Oncology Letters
https://www.readbyqxmd.com/read/28808411/preoperative-factors-associated-with-infiltrative-histologic-growth-patterns-in-extremity-soft-tissue-sarcoma
#3
Jong Woong Park, Han-Soo Kim, Cheol Lee, Hye Jin Yoo, Ji Yeon Yun, Ilkyu Han
Soft tissue sarcoma (STS) with an infiltrative histologic growth pattern, when compared to STS with an expansile pattern, may pose difficulties in local control. Preoperative assessment of the presence of infiltrative histologic growth pattern would be helpful in deciding treatment strategies. A review of 144 patients who underwent surgery for extremity STS was performed. Microscopically, the histologic growth pattern was defined as infiltrative if the penetration of the tumor cells into the surrounding tissue was observed...
2017: Sarcoma
https://www.readbyqxmd.com/read/28807334/a-semi-quantitative-world-health-organization-grading-scheme-evaluating-worst-tumor-differentiation-predicts-disease-free-survival-in-oral-squamous-carcinoma-patients
#4
Dhruv Jain, Gargi Tikku, Pallavi Bhadana, Chandrashekhar Dravid, Rajesh Kumar Grover
We investigated World Health Organization (WHO) grading and pattern of invasion based histological schemes as independent predictors of disease-free survival, in oral squamous carcinoma patients. Tumor resection slides of eighty-seven oral squamous carcinoma patients [pTNM: I&II/III&IV-32/55] were evaluated. Besides examining various patterns of invasion, invasive front grade, predominant and worst (highest) WHO grade were recorded. For worst WHO grading, poor-undifferentiated component was estimated semi-quantitatively at advancing tumor edge (invasive growth front) in histology sections...
August 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28799062/long-term-epilepsy-associated-tumor-in-the-amygdala-of-a-16-year-old-boy-report-of-a-rare-case-having-intranuclear-filaments
#5
Yoon Jin Cha, Dong-Seok Kim, Seung-Koo Lee, Hoon-Chul Kang, Se Hoon Kim
The term "long-term epilepsy-associated tumor (LEAT)" encompasses brain lesions associated with drug-resistant epilepsy over a long duration (≥2 years). Notably, some LEATs do not fit into any of the classifications of the World Health Organization (WHO). Herein, we report a LEAT that occurred in the left amygdala of a 16-year-old patient with intractable epilepsy. Histological examination of the resected amygdala revealed diffusely infiltrating tumor cells in the cortex. Perineuronal satellitosis and perivascular aggregation of tumor cells were apparent, along with mild nuclear enlargement and cytologic atypia...
August 10, 2017: Brain Tumor Pathology
https://www.readbyqxmd.com/read/28796914/actinic-keratoses-show-variable-histological-basal-growth-patterns-a-proposed-classification-adjustment
#6
L Schmitz, T Gambichler, G Gupta, M Stücker, E Stockfleth, R M Szeimies, T Dirschka
BACKGROUND: Common histological classification schemes of actinic keratoses (AK) do not evaluate growth patterns at basal epidermal aspects of AK. Until now, the importance of basal epidermal growth patterns of AK has not been studied. OBJECTIVE: To investigate the extent of atypical keratinocytes throughout the epidermis and variation in basal growth patterns of AK. METHODS: AK lesions occurring on the head/face from patients seen in routine practice were assessed histologically...
August 10, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28783861/cotyledonoid-dissecting-leiomyoma-with-symplastic-features-case-report
#7
Fatma Cavide Sonmez, Zeynep Tosuner, Ayse Filiz Gökmen Karasu, Dilek Sema Arıcı, Ramazan Dansuk
Purpose Cotyledonoid dissecting leiomyoma is a leiomyoma variant exhibiting unusual growth patterns. We aimed to demonstrate this, as well as to point out another feature that has not been previously reported. Case Report A congested, multinodular myomectomy specimen was resected. Histologically, smooth muscle fascicles with marked vascularity and extensive hydropic degeneration were detected. A total of 2 mitoses per 10 high power fields were counted, and the Ki-67 index was of 2-3%. We encountered atypical bizarre cells that have not been previously reported...
August 2017: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/28759013/papillary-renal-cell-carcinoma-derived-chemerin-il-8-and-cxcl16-promote-monocyte-recruitment-and-differentiation-into-foam-cell-macrophages
#8
Krzysztof M Krawczyk, Helén Nilsson, Roni Allaoui, David Lindgren, Michael Arvidsson, Karin Leandersson, Martin E Johansson
Papillary renal cell carcinoma (pRCC) is the second most common type of renal cell carcinoma. The only curative treatment available for pRCC is radical surgery. If the disease becomes widespread, neither chemo- nor radiotherapy will have therapeutic effect, hence further research on pRCC is of utmost importance. Histologically, pRCC is characterized by a papillary growth pattern with focal aggregation of macrophages of the foam cell phenotype. In other forms of cancer, a clear role for tumor-associated macrophages during cancer growth and progression has been shown...
July 31, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28756976/oncocytic-papillary-cystadenoma-with-prominent-mucinous-differentiation-of-parotid-gland-a-case-report
#9
Borislav A Alexiev, Lawrence J Jennings, Sandeep Samant, Sambasiva Rao
We describe the case of an oncocytic papillary cystadenoma with mucinous differentiation of the parotid gland in a 64-year-old male. Histologically, the tumor exhibited distinctive areas of intracystic papillary growth pattern with microcystic and macrocystic spaces containing mucinous secretions and small crystals. The cyst wall and papillary fronds were lined by oncocytic admixed with numerous mucocytes. Lymphoid tissue and invasive features were not identified. The tumor showed strong expression of CK7 and mammaglobin in oncocytes, and BRST-2 and MUC4 in mucocytes...
July 8, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28750602/mechanical-induction-of-bi-directional-orientation-of-primary-porcine-bladder-smooth-muscle-cells-in-tubular-fibrin-poly-vinylidene-fluoride-scaffolds-for-ureteral-and-urethral-repair-using-cyclic-and-focal-balloon-catheter-stimulation
#10
Volker Seifarth, Joachim O Grosse, Matthias Gossmann, Heinz Peter Janke, Patrick Arndt, Sabine Koch, Matthias Epple, Gerhard M Artmann, Aysegül Temiz Artmann
To restore damaged organ function or to investigate organ mechanisms, it is necessary to prepare replicates that follow the biological role model as faithfully as possible. The interdisciplinary field of tissue engineering has great potential in regenerative medicine and might overcome negative side effects in the replacement of damaged organs. In particular, tubular organ structures of the genitourinary tract, such as the ureter and urethra, are challenging because of their complexity and special milieu that gives rise to incrustation, inflammation and stricture formation...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28747392/evaluation-of-grading-systems-in-stage-i-lung-adenocarcinomas-a-retrospective-cohort-study
#11
Tamás Zombori, József Furák, Tibor Nyári, Gábor Cserni, László Tiszlavicz
AIMS: There is no internationally accepted grading system for lung adenocarcinoma despite the new WHO classification. The architectural grade, the Kadota grade and the Sica score were evaluated and compared with overall (OS) and disease-free survival (DFS). METHODS: Comprehensive histological subtyping was used in a series of resected stage I lung adenocarcinoma to identify subtypes of adenocarcinomas, the architectural grade, the Kadota grade, the Sica grade, the mitotic count, nuclear atypia, the presence of lymphovascular, vascular and airway propagation, necrosis, and micropapillary or solid growth pattern in any percentage...
July 26, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28728406/early-weaning-of-calves-after-different-dietary-regimens-affects-later-rumen-development-growth-and-carcass-traits-in-hanwoo-cattle
#12
Kondreddy Eswar Reddy, JinYoung Jeong, Youl-Chang Baek, Young Kyun Oh, Minseok Kim, Kyung Min So, Min Ji Kim, Dong Woon Kim, Sung Kwon Park, Hyun-Jeong Lee
Objective: The main objective of this study was to determine the effect of different diets for early-weaned (EW) calves on rumen development, and how this affects fat deposition in the longissimus dorsi of adult Korean Hanwoo beef cattle. Methods: Three EW groups were established (each n = 12) in which two- week-old Hanwoo calves were fed for ten weeks with milk replacer + concentrate (T1), milk replacer + concentrate + roughage (T2), or milk replacer + concentrate + 30% starch (T3); a control group (n = 12) was weaned as normal...
July 6, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28727824/infiltrative-tumor-growth-patterns-on-magnetic-resonance-imaging-associated-with-systemic-inflammation-and-oncological-outcome-in-patients-with-high-grade-soft-tissue-sarcoma
#13
Tomoki Nakamura, Akihiko Matsumine, Takao Matsubara, Kunihiro Asanuma, Yuki Yada, Tomohito Hagi, Akihiro Sudo
OBJECTIVE: The aim of this study was to determine whether the tumor infiltrative growth pattern on magnetic resonance imaging (MRI) was associated with blood inflammatory markers (C-reactive protein; CRP and Neutrophil-lymphocyte ratio; NLR) and survival in patients with high-grade soft-tissue sarcoma (STS). METHODS: The cohort for this retrospective study included 81 patients with a mean age of 63 years. The tumor depth was superficial or deep in 15 and 66 patients, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28724577/in-situ-expansion-of-engineered-human-liver-tissue-in-a-mouse-model-of-chronic-liver-disease
#14
Kelly R Stevens, Margaret A Scull, Vyas Ramanan, Chelsea L Fortin, Ritika R Chaturvedi, Kristin A Knouse, Jing W Xiao, Canny Fung, Teodelinda Mirabella, Amanda X Chen, Margaret G McCue, Michael T Yang, Heather E Fleming, Kwanghun Chung, Ype P de Jong, Christopher S Chen, Charles M Rice, Sangeeta N Bhatia
Control of both tissue architecture and scale is a fundamental translational roadblock in tissue engineering. An experimental framework that enables investigation into how architecture and scaling may be coupled is needed. We fabricated a structurally organized engineered tissue unit that expanded in response to regenerative cues after implantation into mice with liver injury. Specifically, we found that tissues containing patterned human primary hepatocytes, endothelial cells, and stromal cells in a degradable hydrogel expanded more than 50-fold over the course of 11 weeks in mice with injured livers...
July 19, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28721221/pasireotide-successful-treatment-of-a-sparsely-granulated-tumour-in-a-resistant-case-of-acromegaly
#15
W K M G Amarawardena, K D Liyanarachchi, J D C Newell-Price, R J M Ross, D Iacovazzo, M Debono
The granulation pattern of somatotroph adenomas is well known to be associated with differing clinical and biochemical characteristics, and it has been shown that sparsely granulated tumours respond poorly to commonly used somatostatin receptor ligands (SRLs). We report a challenging case of acromegaly with a sparsely granulated tumour resistant to multiple modalities of treatment, ultimately achieving biochemical control with pasireotide. A 26-year-old lady presented with classical features of acromegaly, which was confirmed by an oral glucose tolerance test...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28719568/effect-of-serial-use-of-bone-morphogenetic-protein-2-and-fibroblast-growth-factor-2-on-periodontal-tissue-regeneration
#16
Ah-Reum Lee, Hyunmin Choi, Jee-Hwan Kim, Sung-Won Cho, Young-Bum Park
PURPOSE: This study evaluates the synergistic effect of serial application of bone morphogenetic protein 2 (BMP2) and fibroblast growth factor 2 (FGF2) on both new bone formation and periodontal tissue regeneration using 1-wall intrabony defect in mongrel dogs. MATERIALS AND METHODS: One-wall defects were created at the mesial aspect of the mandibular first molars of 6 male mongrel dogs. Each mandibular defect received 1 of the 2 experimental treatments randomly (BMP2 or BMP2 + FGF2), and it was allowed to heal for either 4 or 8 weeks postoperatively...
July 17, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28719466/dedifferentiated-liposarcoma-with-epithelioid-epithelial-features
#17
Naohiro Makise, Akihiko Yoshida, Motokiyo Komiyama, Fumihiko Nakatani, Kan Yonemori, Akira Kawai, Masashi Fukayama, Nobuyoshi Hiraoka
Dedifferentiated liposarcoma (DDLPS) demonstrates a variety of growth patterns, and their histologic resemblance to other spindle cell mesenchymal tumors has been widely recognized. However, epithelioid morphology in DDLPS has only rarely been documented. Here, we report 6 cases of DDLPS with striking epithelioid/epithelial features. The patients were 5 men and 1 woman with a median age of 61 years. All tumors were located in the internal trunk. During follow-up of 1 to 41 months, local recurrence, distant metastases, and tumor-related death occurred in 4, 2, and 4 patients, respectively...
July 20, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28716439/renal-cell-carcinoma-unclassified-with-medullary-phenotype-poorly-differentiated-adenocarcinomas-overlapping-with-renal-medullary-carcinoma
#18
Deepika Sirohi, Steven C Smith, Chisato Ohe, Piergiuseppe Colombo, Mukul Divatia, Ema Dragoescu, Priya Rao, Michelle S Hirsch, Ying-Bei Chen, Rohit Mehra, Mahul B Amin
Renal medullary carcinoma (RMC) is a highly aggressive renal cell carcinoma, arising in the collecting system, and requiring careful correlation with status of sickle cell trait. A panel of international experts has recently proposed provisional diagnostic terminology, renal cell carcinoma, unclassified, with medullary phenotype (RCCU-MP), based on encountering an extraordinarily rare tumor with RMC morphology and immunophenotype in an individual proven not to have a hemoglobinopathy. Herein, we extend this observation to a cohort of five such tumors, morphologically similar to RMC, lacking SMARCB1 expression by immunohistochemistry, but each without evidence of a hemoglobinopathy...
July 14, 2017: Human Pathology
https://www.readbyqxmd.com/read/28707305/controlled-basic-fibroblast-growth-factor-release-device-made-of-poly-ethyleneglycol-dimethacrylates-for-creating-a-subcutaneous-neovascular-bed-for-cell-transplantation
#19
Shinji Yamada, Nobuhiro Nagai, Saaya Saijo, Hirokazu Kaji, Matsuhiko Nishizawa, Kozue Imura, Masafumi Goto, Toshiaki Abe
Subcutaneous space is a potential site for the transplantation of cells such as islets for treatment of type 1 diabetes. To enhance engraftment, an optimal space for the growth of the transplanted cells is needed along with neovascularization. In this study, we developed a device using a photocurable resin, poly(ethyleneglycol) dimethacrylates, for controlled release of basic fibroblast growth factor (bFGF) to create a subcutaneous neovascular bed in rats. The device consists of a disk-shaped capsule with micro-pores and is composed of tri(ethyleneglycol) dimethacrylate (TEGDM) and a drug formulation of poly(ethyleneglycol) dimethacrylate (PEGDM)...
July 13, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28700437/adenomyoma-with-pseudoinvasive-growth-pattern-and-serosal-penetration-mimicking-endometrial-carcinoma
#20
Thomas Raj, Robert DeWitt, Nathaniel E Smith
We present a novel case of a 48-yr-old female with a uterine adenomyoma with an unusual pseudoinvasive growth pattern displaying full-thickness penetration beyond the serosal surface in association with a dehisced Caesarian scar. Before hysterectomy, magnetic resonance imaging findings showed an infiltrative lesion suggestive of endometrial carcinoma. An endometrial biopsy was benign but definitive operative management was pursued given the concerning imaging. Gross examination of the uterus demonstrated a 7...
July 11, 2017: International Journal of Gynecological Pathology
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