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https://www.readbyqxmd.com/read/28877071/uncommon-localization-of-extrarenal-xp11-2-translocation-associated-renal-cell-carcinoma-rcc-case-report
#1
Jaudah Ahmed Al-Maghrabi, Mohamad Nidal Khabaz
The World Health Organization has recognized Xp11.2 translocation-associated renal cell carcinoma (RCC) as a distinct neoplasm that arises within the kidney. Although many reports of extrarenal carcinoma may be found in the literature, to the best of our knowledge, Xp11 translocation-associated RCC with intact kidneys has not been documented. This report describes a multilobulated right retroperitoneal soft tissue mass (7.9×5.3×12.6 cm) of a 37-year-old man complaining of abdominal pain in the right side...
September 4, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28877070/effects-of-hydrochloric-acid-and-formic-acid-decalcification-on-breast-tumor-biomarkers-and-her2-fluorescence-in-situ-hybridization
#2
Beth Z Clark, Jennifer M Yoest, Agnieszka Onisko, David J Dabbs
Biomarker analysis of metastatic breast carcinoma (MBC) is routinely recommended by ASCO/CAP guidelines, and establishing a diagnosis of MBC often requires immunohistochemistry (IHC). The reliability of breast tumor biomarkers and breast-specific markers on decalcified tissues has not been extensively studied. We performed IHC studies on breast tumors exposed to hydrochloric acid (HCl) and formic acid (FA) decalcification solutions, and HER2 fluorescence in situ hybridization on a subset of these tumors to establish a protocol for handling bone specimens with suspicion for MBC...
September 4, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28841887/a-case-of-intravascular-large-b-cell-lymphoma-presenting-as-nodular-goiter
#3
Bo Luo, Jia-Mei Chen, Jie Liu, Wen-He Li, Yu-Xiang Shi, Pan Zeng, Yong-Hui Xie, Hong-Feng Zhang
BACKGROUND: Intravascular large B-cell lymphoma (IVLBCL) is a subtype of diffuse large B-cell lymphoma (DLBCL) that is rare and highly aggressive and that may progressively involve many organs. CNS (central nervous system), BM (bone marrow) and skin are the most common systems involved. To date, only 2 cases of IVLBCL involving the thyroid have been reported. CASE PRESENTATION: Here, we report a case of IVLBCL involving the thyroid and accompanied by bilateral nodular goiter...
August 25, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28777151/does-strong-and-diffuse-pax-8-positivity-occur-in-primary-lung-carcinoma-an-immunohistochemical-study-of-418-cases-and-review-of-the-literature
#4
Kelsey E McHugh, Andrea V Arrossi, Carol F Farver, Sanjay Mukhopadhyay
Although rare cases of PAX-8-positive primary lung carcinoma have been reported, details of staining distribution and intensity in such cases are limited. The aim of this study was to determine whether strong and diffuse PAX-8 staining can occur in primary lung carcinoma. Immunohistochemical staining for PAX-8 (Rabbit polyclonal, 10336-1-AP; Proteintech) was performed on whole-tissue sections from 418 resected primary lung carcinomas. PAX-8 was positive in 5/418 (1.2%) cases, all of which were large cell neuroendocrine carcinomas...
August 2, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28767609/sinonasal-renal-cell-like-adenocarcinoma-a-unique-variant-of-primary-clear-cell-carcinoma-of-the-head-and-neck-the-first-reported-case-in-korea
#5
Nah-Ihm Kim, Jung-In Yang, Sung-Sun Kim, Ji-Shin Lee, Sang-Chul Lim, Shin Jung, Jae-Hyuk Lee, Kyung-Sub Moon, Kyung-Hwa Lee
RATIONALE: Primary sinonasal renal cell-like adenocarcinoma (SNRCLA) is a rare and unique neoplasm. PATIENT CONCERNS: A 63-year-old man presented with repeated epistaxis, nasal obstruction and hyposmia of 2-month duration. Radiological studies revealed a mass of the left ethmoid sinus involving anterior skull base. DIAGNOSIS: The patient was treated with craniofacial resection, bifrontal craniotomy combined with an endonasal endoscopic approach...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28690098/m%C3%A3-llerian-adenosarcoma-of-the-urinary-bladder-clinicopathologic-and-immunohistochemical-features-with-novel-genetic-aberrations
#6
Joseph Sanfrancesco, Sean R Williamson, Jennifer B Kum, Shaobo Zhang, Mingsheng Wang, Antonio Lopez-Beltran, Rodolfo Montironi, Thomas A Gardner, Liang Cheng
BACKGROUND: Müllerian adenosarcoma is a biphasic neoplasm most commonly occurring in the uterus and less frequently of the ovary. It has been rarely described to occur in other sites such as peritoneum and liver. PATIENTS AND METHODS: In this study, we report the clinicopathologic, immunohistochemical and molecular features of a primary Müllerian adenosarcoma of the urinary bladder in a 62-year-old woman. To our knowledge, this is the first report of detailed pathologic characterization of Müllerian adenosarcoma primary to the urinary bladder in the literature...
May 25, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28682831/liver-metastases-from-renal-oncocytoma-with-vascular-extension
#7
Giovanni Cacciamani, Luca Cima, Miriam Ficial, Giovanni Novella, Salvatore Siracusano, Umberto Tedeschi, Matteo Balzarro, Umberto Montin, Maria A Cerruto, Vincenzo De Marco, Antonio B Porcaro, Ondrej Hes, Antonia DʼErrico, Guido Martignoni, Claudio Ghimenton, Gianluigi Zaza, Walter Artibani, Matteo Brunelli, Albino Eccher
The 2016 World Health Organization Renal Tumor Classification defines renal oncocytoma (RO) as a benign epithelial tumor; however, malignant histopathologic features have been documented. Rare cases with metastases have been reported. We describe the case of a 62-year-old woman who was referred to the Urology Clinic for a routine work-up. Magnetic resonance imaging and computerized tomography showed a 7-cm mass in the middle and lower portions of the left kidney and 2 suspected liver metastases. The patient underwent surgery...
July 4, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28680949/sapium-ellipticum-hochst-pax-ethanol-leaf-extract-maintains-lipid-homeostasis-in-streptozotocin-induced-diabetic-rats
#8
Osasenaga Mcdonald Ighodaro, Oluseyi Adeboye Akinloye, Regina Ngozi Ugbaja, Samuel Olatunbosun Omotainse
Dyslipidemia is a common metabolic disorder especially in diabetes mellitus (DM). In this study, the ability of Sapium ellipticum (SE) leaf extract to restore lipid homeostasis in streptozotocin-induced diabetes was examined. DM was induced in experimental rats (Wistar strains) using single intraperitoneal dose (55 mg/kg body weight {BW}) of streptozotocin (STZ). Treatment of diabetic rats with SE was oral (p.o), at doses of 400 and 800 mg kg(-1) BW, twice daily at 8 h interval for 21 days. Lipid parameters were analyzed in the serum of rats using test kits...
2017: International Scholarly Research Notices
https://www.readbyqxmd.com/read/28612664/primary-central-nervous-system-t-cell-lymphoma-with-aberrant-expression-of-cd20-and-cd79a-a-diagnostic-pitfall
#9
Neha Gupta, Mansoor Nasim, Silvia G Spitzer, Xinmin Zhang
Primary central nervous system T-cell lymphoma (PCNSTCL) is rare, accounting for 2% of CNS lymphomas. We report the first case of PCNSTCL with aberrant expression of CD20 and CD79a in an 81-year-old man with a left periventricular brain mass. A biopsy revealed dense lymphoid infiltrate consisting of medium-sized cells in a background of gliosis and many histiocytes. The lymphoid cells were positive for CD2, CD3, CD7, CD8, T-cell intracellular antigen-1, granzyme B, CD20, and CD79a and negative for CD4, CD5, PAX-5, OCT-2, BOB-1, human herpes virus-8, and Epstein-Barr virus-encoded small RNAs...
June 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28603637/t-type-voltage-gated-ca-2-channels-do-not-contribute-to-the-negative-feedback-regulation-of-myogenic-tone-in-murine-superior-epigastric-arteries
#10
Brendan Mullan, Jessica Pettis, William F Jackson
T-type voltage-gated Ca(2+) channels (CaV3.2 VGCC) have been hypothesized to control spontaneous transient outward currents (STOCs) through large-conductance Ca(2+)-activated K(+) channels (BKCa), and contribute to the negative-feedback regulation of myogenic tone. We tested this hypothesis in superior epigastric arteries (SEAs) isolated from male C57BL/6 mice. SEAs were isolated and enzymatically dissociated to obtain single smooth muscle cells (SMCs) for whole-cell recording of paxilline-sensitive (PAX, 1 μmol/L) STOCs at -30 mV, or cannulated and studied by pressure myography (80 cm H2O, 37°C)...
June 2017: Pharmacology Research & Perspectives
https://www.readbyqxmd.com/read/28554748/nephrogenic-adenoma-of-the-urinary-tract-a-6-year-single-center-experience
#11
Didem Turcan, Mustafa Fuat Acikalin, Evrim Yilmaz, Funda Canaz, Deniz Arik
BACKGROUND: Nephrogenic adenoma is an uncommon benign lesion that occurs at several sites in urinary tract, from the renal pelvis to urethra, with the highest frequency in urinary bladder. Nephrogenic adenoma displays a broad spectrum of architectural and cytological features. Hence, recognition of its characteristic histopathological features is needed to distinguish this lesion from its mimickers. MATERIALS AND METHODS: A retrospective series of 21 cases of nephrogenic adenoma in 18 patients, which were diagnosed in our department between 2010 and 2016, were analyzed...
March 25, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28473691/notochordal-and-nucleus-pulposus-marker-expression-is-maintained-by-sub-populations-of-adult-human-nucleus-pulposus-cells-through-aging-and-degeneration
#12
Stephen M Richardson, Francesca E Ludwinski, Kanna K Gnanalingham, Ross A Atkinson, Anthony J Freemont, Judith A Hoyland
The nucleus pulposus (NP) of the intervertebral disc (IVD) demonstrates substantial changes in cell and matrix composition with both ageing and degeneration. While recent transcriptomic profiling studies have helped define human NP cell phenotype, it remains unclear how expression of these markers is influenced by ageing or degeneration. Furthermore, cells of the NP are thought to derive from the notochord, although adult NP lacks identifiable notochordal (NC) cells. This study aimed to confirm expression of previously identified NP and NC marker genes in adult human NP cells from a range of ages and degenerate states...
May 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28468089/-clinical-characteristics-and-survival-analysis-of-eight-cases-hiv-negative-plasmablastic-lymphoma
#13
X Han, L X Hu, M Q Ouyang, M H Duan, D B Zhou
Objective: To deepen the knowledge of HIV-negative plasmablastic lymphoma (PBL) . Methods: Medical records from 8 HIV-negative PBL patients diagnosed in Peking Union Medical College Hospital from January 1997 to May 2015 were collected, and the clinical features and prognosis of these patients were analyzed. Results: All of these 8 patients were diagnosed as HIV-negative PBL, 3 of 8 patients were males, and others were female. The median age was 60 (43-80) year. Among these patients, 4 cases had underlying immunosuppressive state...
April 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28453722/accuracy-of-mdct-and-cbct-in-three-dimensional-evaluation-of-the-oropharynx-morphology
#14
Hui Chen, Maureen van Eijnatten, Ghizlane Aarab, Tim Forouzanfar, Jan de Lange, Paul van der Stelt, Frank Lobbezoo, Jan Wolff
Objective: To assess the accuracy of five different computed tomography (CT) scanners for the evaluation of the oropharynx morphology. Methods: An existing cone-beam computed tomography (CBCT) data set was used to fabricate an anthropomorphic phantom of the upper airway volume that extended from the uvula to the epiglottis (oropharynx) with known dimensions (gold standard). This phantom was scanned using two multi-detector row computed tomography (MDCT) scanners (GE Discovery CT750 HD, Siemens Somatom Sensation) and three CBCT scanners (NewTom 5G, 3D Accuitomo 170, Vatech PaX Zenith 3D)...
April 27, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28448860/a-unique-presentation-of-renal-cell-transformation-into-renal-cell-carcinoma-in-subcutaneous-fatty-tissue-post-twenty-year-old-healing-gun-shot-wound-a-case-report
#15
Awadh R Alqahtani, Mohammed A Alqahtani
INTRODUCTION: Renal cell carcinoma (RCC) is the most common malignancy in the genitourinary tract, and is among the 10 most common cancers in both males and females. PRESENTATION OF CASE: We report a case of a 61-year-old male who presented with a cutaneous lesion on his left back side at a site where he had undergone several surgeries - including Left nephrectomy - twenty years ago for a gun-shot wound he sustained which penetrated his abdomen. DISCUSSION: At that time pathology reports turned out to be normal, specially left kidney pathology report which was negative for any malignancy...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28394803/hpv-negative-gastric-type-adenocarcinoma-in-situ-of-the-cervix-a-spectrum-of-rare-lesions-exhibiting-gastric-and-intestinal-differentiation
#16
Karen L Talia, Colin J R Stewart, Brooke E Howitt, Marisa R Nucci, W Glenn McCluggage
In recent years, a number of benign and malignant cervical glandular lesions exhibiting gastric differentiation have been described but premalignant gastric-type lesions have not been well characterized. We report a series of 9 cases of a rare form of cervical adenocarcinoma in situ (AIS) distinguished by gastric and sometimes intestinal differentiation and lack of association with human papillomavirus (HPV) infection. The lesions occurred in women aged 25 to 73 years (mean age 51 y). All cases were located at (or just proximal to) the cervical transformation zone and there was extension to the lower uterine segment in 3 cases, 2 of which also involved the endometrium...
August 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28374447/the-utility-of-using-immunohistochemistry-in-the-differentiation-of-metastatic-cutaneous-clear-cell-renal-cell-carcinoma-and-clear-cell-hidradenoma
#17
Moises J Velez, Courtney L Thomas, Jason Stratton, Wilma Bergfeld, Joshua Weaver
BACKGROUND: Clear cell hidradenoma and cutaneous clear cell renal cell carcinoma (CCRCC) overlap morphologically. The distinction may be difficult in a patient with a history of CCRCC, presenting with a cutaneous nodule, potentially leading to an erroneous diagnosis. We investigated the usefulness of napsin A and paired box gene 8 (PAX-8) with previously studied markers epithelial membrane antigen (EMA), carcinoembryonic antigen (CEA), vimentin and CD 10 in differentiating CCRCC from hidradenoma...
April 4, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28353588/primary-esophageal-mucosa-associated-lymphoid-tissue-lymphoma-a-case-report-and-review-of-literature
#18
REVIEW
Qiang Ma, Chun Zhang, San'gao Fang, Peng Zhong, Xiangfeng Zhu, Li Lin, Hualiang Xiao
RATIONALE: Mucosa-associated lymphoid tissue (MALT) lymphoma is a low grade malignant B cell lymphoma which occurs mainly in the organs having mucosal layer. Though gastrointestinal tract is the most commonly involved extranodal site, primary esophageal MALT lymphoma is very rare with less than 20 cases reported in literature. PATIENT CONCERNS: A 75-year-old man was referred to our hospital for evaluation of dysphagia. Endoscopy revealed a submucosal tumor located in the middle and lower third of esophagus...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28351362/a-peculiar-case-report-of-extraovarian-brenner-tumor-arising-in-the-omentum
#19
Chung Su Hwang, Chang Hun Lee, So Jeong Lee, Young Geum Kim, Ahrong Kim, Do Youn Park, Hyun Jeong Kang, Dong Hoon Shin
BACKGROUND: Brenner tumors almost always develop in the ovary. Exceptionally, extraovarian Brenner tumors have been reported in the lower abdomen or pelvic organs. Here, we introduce a peculiar case of an extraovarian Brenner tumor arising in the omentum. CASE PRESENTATION: A 43-year-old woman presented with a palpable abdominal mass. Computed tomography (CT) scan revealed a 9.0-cm solid mass in the omentum. The tumor was not associated with pelvic structures, including the ovaries...
March 28, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28331913/biological-properties-and-chemical-composition-of-jatropha-neopauciflora-pax
#20
A B Hernández-Hernández, F J Alarcón-Aguilar, M Jiménez-Estrada, L B Hernández-Portilla, C M Flores-Ortiz, M A Rodríguez-Monroy, M Canales-Martínez
BACKGROUND: Ethnopharmacological relevance. Jatropha neopauciflora (Pax) is an endemic species of the Tehuacan- Cuicatlan Valley, Mexico. This species has long been used as a remedy to alleviate illnesses of bacterial, fungal and viral origin. Aim of the study. Experimentally test the traditional use of Jatropha neopauciflora in Mexican traditional medicine. MATERIALS AND METHODS: The methanol extract (MeOH1), of Jatropha neopauciflora (Euphorbiaceae) was obtained by maceration...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
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