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Human Pathology

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https://www.readbyqxmd.com/read/29339179/primary-diffuse-leptomeningeal-atypical-teratoid-rhabdoid-tumor-diagnosed-by-cerebrospinal-fluid-cytology-case-report-with-molecular-genetic-analysis
#1
Ran Tomomasa, Satoshi Nakata, Sumihito Nobusawa, Keishi Horiguchi, Nozomi Matsumura, Hayato Ikota, Junko Hirato, Yuhei Yoshimoto, Hideaki Yokoo
Atypical teratoid/rhabdoid tumors (AT/RT) are rare malignant neoplasms that mainly affect infants and young children, and are typically located in the cerebellar hemispheres. These tumors are histologically characterized by varying proportions of rhabdoid cells, and nuclear INI1 immunonegativity. Here, we report a case of a 15-year-old male with primary diffuse leptomeningeal AT/RT. The patient had symptoms similar to those of meningitis. Magnetic resonance imaging revealed leptomeningeal thickening. Cytological examination using cerebrospinal fluid was repeatedly performed and revealed rhabdoid cells with loss of INI1 reactivity, and shortly after, the diagnosis of AT/RT was confirmed by tissue biopsy...
January 12, 2018: Human Pathology
https://www.readbyqxmd.com/read/29339178/the-evolving-diagnosis-of-noninvasive-follicular-thyroid-neoplasm-with-papillary-like-nuclear-features-niftp
#2
EDITORIAL
Ricardo V Lloyd, Sylvia L Asa, Virginia A LiVolsi, Peter M Sadow, Arthur S Tischler, Ronald A Ghossein, R Michael Tuttle, Yuri E Nikiforov
No abstract text is available yet for this article.
January 12, 2018: Human Pathology
https://www.readbyqxmd.com/read/29339177/trends-in-reporting-histological-subtyping-of-renal-cell-carcinoma-association-with-cancer-center-type
#3
Ted Gansler, Stacey Fedewa, Mahul B Amin, Chun Chieh Lin, Ahmedin Jemal
Histological classification of renal cell carcinoma (RCC) has become increasingly important for clinical management. We identified 295,483 RCC diagnosed from 1998-2014 in the National Cancer Database (NCDB) to examine temporal trends in proportions of RCC with unspecified histology and several specific histologies from the 1998 and 2004 World Health Organization classifications of RCC. Further, multivariable log binomial analysis of 101,062 RCC diagnosed from 2010-2014 was used to determine whether the association of diagnosing/treating facility type and the proportion of unspecified RCC is independent of patient demographic and clinical factors...
January 12, 2018: Human Pathology
https://www.readbyqxmd.com/read/29339176/the-absence-of-class-iii-%C3%AE-tubulin-is-predictive-of-a-favorable-response-to-nab-paclitaxel-and-gemcitabine-in-patients-with-unresectable-pancreatic-ductal-adenocarcinoma
#4
Akihisa Kato, Aya Naiki-Ito, Itaru Naitoh, Kazuki Hayashi, Takahiro Nakazawa, Shuya Shimizu, Yuji Nishi, Fumihiro Okumura, Inoue Tadahisa, Hiroki Takada, Hiromu Kondo, Michihiro Yoshida, Satoru Takahashi, Takashi Joh
The combined administration of nab-paclitaxel and gemcitabine (nab-P + Gem) is a standard chemotherapy for unresectable pancreatic ductal adenocarcinoma (UR-PDAC); thus, a predictive biomarker to identify patients best suited for nab-P + Gem therapy would be useful. Class III β-tubulin (TUBB3) has been reported to be a predictive marker for taxane resistance in various tumors. However, the correlation between TUBB3 expression and the response to nab-P + Gem in patients with UR-PDAC has not been evaluated. We retrospectively reviewed 75 patients with UR-PDAC who received nab-P + Gem...
January 12, 2018: Human Pathology
https://www.readbyqxmd.com/read/29339175/primary-thymic-adenocarcinomas-a-clinicopathological-and-immunohistochemical-study-of-16-cases-with-emphasis-on-the-morphological-spectrum-of-differentiation
#5
Neda Kalhor, Cesar A Moran
Sixteen cases of primary thymic adenocarcinoma are presented. The patients are 9 men and 7 women between the ages of 22 and 68 years (average: 45 years) who presented with non-specific symptoms including cough, chest pain, and dyspnea. Diagnostic imaging revealed the presence of an anterior mediastinal mass, which was surgically removed in all of the patients. Histologically, none of the tumors was encapsulated and showed different growth patterns including mucinous, non-mucinous, and papillary features. The majority of cases showed mixed growth pattern and the tumor was limited to the mediastinum with only a few cases extending to lymph nodes or pericardium...
January 12, 2018: Human Pathology
https://www.readbyqxmd.com/read/29337025/hepatosplenic-t-cell-lymphoma-a-review-of-clinicopathologic-features-pathogenesis-and-prognostic-factors
#6
Mariko Yabe, Roberto N Miranda, L Jeffrey Medeiros
Hepatosplenic T-cell lymphoma (HSTCL) is a rare and clinically aggressive type of T-cell lymphoma that arises most often in adolescents and young adults. Patients with HSTCL commonly present with B-symptoms and cytopenias which may suggest a diagnosis of acute leukemia initially. Patients present with extranodal disease involving the spleen, liver and bone marrow; lymphadenopathy is usually absent. The lymphoma cells can show a spectrum of cell sizes and are of T-cell lineage, often negative for CD4 and CD8 and positive for T-cell receptor γδ or, less often, αβ...
January 11, 2018: Human Pathology
https://www.readbyqxmd.com/read/29320755/downregulated-sash1-expression-indicates-poor-clinical-prognosis-in-gastric-cancer
#7
Nan Zhou, Can Liu, Xudong Wang, Qinsheng Mao, Qin Jin, Peng Li
SASH1 (SAM- and SH3-domain containing 1), a novel candidate tumor suppressor, has attracted attention due to its role in intracellular signal transduction and its tumor prognostic value in diverse cancers. Reports have demonstrated that reduced SASH1 expression correlates with tumor proliferation, invasion, and metastasis. However, the expression and prognostic significance of SASH1 in gastric cancer (GC) remain unclear. In this study, 8 paired fresh-frozen GC tissues and corresponding gastric mucosal tissues were examined by Western blot to analyze the protein expression of SASH1...
January 7, 2018: Human Pathology
https://www.readbyqxmd.com/read/29320754/characteristics-of-cribriform-morular-variant-of-papillary-thyroid-carcinoma-in-post-chernobyl-affected-region
#8
Alfred King-Yin Lam, Mikhail Fridman
The aim is to study the characteristics of cribriform morular variant of papillary thyroid carcinoma (CMV-PTC) in patients living in radiation-affected area of Belarus. The clinical and pathological features of 35 patients with CMV-PTC from Belarus were studied and compared with those of conventional papillary thyroid carcinoma diagnosed in the same period. The patients with CMV-PTC were all females and were younger at presentation (mean age = 24) than those with conventional papillary thyroid carcinoma. Familial adenomatous polyposis (FAP) was identified in 20% of the patients with CMV-PTC...
January 7, 2018: Human Pathology
https://www.readbyqxmd.com/read/29320753/prognostic-significance-of-s100a16-sub-cellular-localization-in-lung-adenocarcinoma
#9
Makoto Kobayashi, Ryo Nagashio, Keita Saito, Clemente Aguilar-Bonavides, Shinichiro Ryuge, Ken Katono, Satoshi Igawa, Benio Tsuchiya, Shi-Xu Jiang, Masaaki Ichinoe, Yoshiki Murakumo, Makoto Saegusa, Yukitoshi Satoh, Yuichi Sato
To discover novel tumor markers for lung adenocarcinoma (AC), we performed proteomics analysis and reported a correlation between S100A16 membranous expression in AC tissues and a poor prognosis. However, some patients with a good prognosis also showed S100A16 membranous staining. We re-evaluated immunohistochemically stained tissues, and found membrane-positive and nucleus- negative expressions to be significantly higher in the presence of the following: male, smoker, positive nodal metastasis, higher p-TNM stage, larger tumor, poorer differentiation, positive for lymphatic invasion, positive for vascular invasion, and positive for pleural invasion (all factors P < 0...
January 7, 2018: Human Pathology
https://www.readbyqxmd.com/read/29320752/the-value-of-detection-of-s100a8-and-asah1-in-predicting-the-chemotherapy-response-for-breast-cancer-patients
#10
Yu-Hong Li, Hai-Ting Liu, Jing Xu, Ai-Yan Xing, Jie Zhang, Ya-Wen Wang, Gang Yin, Peng Gao
Chemotherapy plays an important role in the treatment of breast cancer. However, chemoresistance remains the main obstacle for effective treatment, leading to poor prognosis. This study aims to investigate the value of detection of S100A8 and ASAH1 in predicting the chemotherapy response. Miller and Payne grades were used to assess the chemotherapy response in breast cancers. The expression of S100A8 and ASAH1, as well as ER, PR, HER-2 and Ki-67 were assessed by immunohistochemical staining in 120 cases of non-special type invasive ductal carcinoma (IDC-NOS)...
January 7, 2018: Human Pathology
https://www.readbyqxmd.com/read/29320751/uterine-rhabdomyosarcoma-in-adults
#11
Andre Pinto, Ryan M Kahn, Andrew E Rosenberg, Brian Slomovitz, Charles Matthew Quick, Michella K Whisman, Marilyn Huang
Rhabdomyosarcoma (RMS) is an aggressive mesenchymal tumor most commonly diagnosed in the pediatric population, and when occurring in adults, tends to develop in the deep soft tissue of the limbs. Primary uterine RMS comprises an even more restricted subset, with little known or reported when compared to most other gynecologic sarcomas. Our goal with this study was to retrospectively evaluate cases from two academic institutions and describe the main histopathologic findings of this rare gynecologic malignancy...
January 7, 2018: Human Pathology
https://www.readbyqxmd.com/read/29320750/the-many-faces-of-intestinal-tract-gastric-heterotopia-a-series-of-four-cases-highlighting-clinical-and-pathological-heterogeneity
#12
Aqsa Nasir, Stuart K Amateau, Sabina Khan, Ross W Simpson, Dale C Snover, Khalid Amin
Gastric heterotopia of the intestinal tract can have a diverse clinicopathologic presentation, resulting in a diagnostic dilemma. We present a series of four cases, two male and two female patients with age range of 31-82 year, found in the duodenum, jejunum, and transverse colon. The most common and rather unusual clinical presentation was iron deficiency anemia, seen in three cases, while one patient presented with abdominal pain. Endoscopically two cases were visualized as pedunculated polyps and two as sessile/plaques like lesions...
January 7, 2018: Human Pathology
https://www.readbyqxmd.com/read/29320749/atypical-multivacuolated-lipoblasts-and-atypical-mitoses-are-not-compatible-with-the-diagnosis-of-spindle-cell-pleomorphic-lipoma-reply
#13
LETTER
Michael Michal, Dmitry V Kazakov, Kvetoslava Michalova, Michal Michal
No abstract text is available yet for this article.
January 7, 2018: Human Pathology
https://www.readbyqxmd.com/read/29317235/differentiating-breast-carcinoma-with-signet-ring-features-from-gastrointestinal-signet-ring-carcinoma-assessment-of-immunohistochemical-markers
#14
Yiang Hui, Yihong Wang, Gahie Nam, Jacqueline Fanion, Ashlee Sturtevant, Kara A Lombardo, Murray B Resnick
Signet-ring morphology is recognized throughout the gastrointestinal tract. However, this pattern may be observed in other primary sites giving rise to diagnostic challenges in the work-up of metastases. Relatively newer immunohistochemical markers have not been evaluated in this context. We assessed expression patterns of several common immunohistochemical markers in tumors with signet-ring morphology to delineate a pragmatic approach to this differential diagnosis. Primary breast and gastrointestinal carcinomas showing signet-ring features were reviewed...
January 6, 2018: Human Pathology
https://www.readbyqxmd.com/read/29317234/atypical-multivacuolated-lipoblasts-and-atypical-mitoses-are-not-compatible-with-the-diagnosis-of-spindle-cell-pleomorphic-lipoma
#15
LETTER
David Creytens, Thomas Mentzel, Liesbeth Ferdinande, Joost van Gorp, Jo Van Dorpe, Uta Flucke
No abstract text is available yet for this article.
January 6, 2018: Human Pathology
https://www.readbyqxmd.com/read/29317233/c-cbl-and-cbl-b-expression-in-skull-base-chordomas-is-associated-with-tumor-progression-and-poor-prognosis
#16
Peng Luo, Xin Wang, Jinpeng Zhou, Long Li, Zhitao Jing
Chordomas are rare, locally aggressive malignancies that are often difficult to eradicate. Surgery and radiotherapy are the first-line treatments, but the probability of local recurrence is high. According to our previous research, c-Cbl and Cbl-b have been linked to tumor progression and poor prognosis of glioma. However, their role in skull base chordomas is unclear. To clarify this issue, in the present study we analyzed the expression of c-Cbl and Cbl-b in relation to the clinicopathological features and clinical outcome of skull base chordomas patients (n=70)...
January 6, 2018: Human Pathology
https://www.readbyqxmd.com/read/29309807/solitary-fibrous-tumor-with-neuroendocrine-and-squamous-dedifferentiation-a-potential-diagnostic-pitfall
#17
Chuanyong Lu, Deepu Alex, Ryma Benayed, Marc K Rosenblum, Meera R Hameed
Solitary fibrous tumor (SFT) is a ubiquitous mesenchymal neoplasm of deep soft tissue with variable and often unpredictable biological behavior. The lineage is presumed to be fibroblastic and histological features range from benign to overtly malignant with rare tumors showing "dedifferentiation" or transformation to undifferentiated pleomorphic sarcoma. Dedifferentiation in mesenchymal neoplasms is a phenomenon of histologic progression of a well-differentiated neoplasm to a high-grade sarcoma which can differentiate along divergent lines...
January 5, 2018: Human Pathology
https://www.readbyqxmd.com/read/29309806/decreased-expression-of-megalin-and-cubilin-and-altered-mitochondrial-activity-in-tenofovir-nephrotoxicity
#18
Alexandre Cez, Isabelle Brocheriou, François-Xavier Lescure, Clovis Adam, Pierre-Marie Girard, Gilles Pialoux, Søren K Moestrup, Soraya Fellahi, Jean-Philippe Bastard, Pierre Ronco, Emmanuelle Plaisier
Tenofovir disoproxil fumarate (TDF) is a commonly used antiretroviral drug for HIV, rarely causing Fanconi syndrome and acute kidney injury. We retrospectively analyzed the clinico-pathological presentation of 20 cases of tenofovir-induced tubulopathy, and investigated the renal expression of the megalin and cubilin proteins, as well as the mitochondrial respiratory chain activity. Estimated glomerular filtration rate (eGFR) before TDF exposure was 92 ml/min/1,73m2, decreasing to 27.5 ml/min/1,73m2 at the time of biopsy, with 30% of patients requiring renal replacement therapy...
January 5, 2018: Human Pathology
https://www.readbyqxmd.com/read/29307629/effective-use-of-twitter-and-facebook-in-pathology-practice
#19
Pembe Oltulu, Abul Ala Syed Rifat Mannan, Jerad M Gardner
Social networking has become a part of daily life for most people. In the era of globalization, it has become indispensable for effective communication between friends and peers across the world. Today, social media use is not only restricted to our personal lives; it is becoming increasingly incorporated into our professional lives, as well. Social media platforms are rapidly becoming a necessary tool for medical professionals. Apt use of social media platforms can revolutionize scientific communication and collaboration...
January 4, 2018: Human Pathology
https://www.readbyqxmd.com/read/29307628/genomic-heterogeneity-in-primary-colorectal-carcinomas-and-their-metastases-born-bad-or-brought-up-a-villain
#20
Maja Hühns, Saskia Krohn, Hugo Murua Escobar, Friedrich Prall
Progression of solid cancers, colorectal carcinomas among them, from their primaries to metastatic lesions traditionally is thought to proceed by a step-wise acquisition of and selection for genomic aberrations. To test if patterns of genomic aberrations would be consistent with this model, we studied ten colorectal carcinoma primary-metastasis pairs, nine with one liver metastasis each, and one with two metastases. Next generation targeted sequencing (50 gene panel) with samples obtained from different regions of the primaries and their metastases demonstrated 1-11 gene mutations per lesion...
January 4, 2018: Human Pathology
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