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Ductal adenocarcinoma of the prostate

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https://www.readbyqxmd.com/read/27872140/primary-cilia-are-increased-in-number-and-demonstrate-structural-abnormalities-in-human-cancer
#1
Binnaz Yasar, Kim Linton, Christian Slater, Richard Byers
AIMS: Primary cilia play an important role in the regulation of cell signalling pathways and are thought to have a role in cancer but have seldom been studied in human cancer samples. METHODS: Primary cilia were visualised by dual immunofluorescence for anti-CROCC (ciliary rootlet coiled-coil) and anti-tubulin in a range of human cancers (including carcinomas of stomach, pancreas, prostate, lung and colon, lobular and ductal breast cancers and follicular lymphoma) and in matched normal tissue (stomach, pancreas, lung, large and small intestines, breast and reactive lymph nodes) samples using a tissue microarray; their frequency, association with proliferation, was measured by Ki-67 staining and their structure was analysed...
November 21, 2016: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/27756888/mismatch-repair-deficiency-may-be-common-in-ductal-adenocarcinoma-of-the-prostate
#2
Michael T Schweizer, Heather H Cheng, Maria S Tretiakova, Funda Vakar-Lopez, Nola Klemfuss, Eric Q Konnick, Elahe A Mostaghel, Peter S Nelson, Evan Y Yu, Bruce Montgomery, Lawrence D True, Colin C Pritchard
Precision oncology entails making treatment decisions based on a tumor's molecular characteristics. For prostate cancer, identifying clinically relevant molecular subgroups is challenging, as molecular profiling is not routine outside of academic centers. Since histologic variants of other cancers correlates with specific genomic alterations, we sought to determine if ductal adenocarcinoma of the prostate (dPC) - a rare and aggressive histopathologic variant - was associated with any recurrent actionable mutations...
October 15, 2016: Oncotarget
https://www.readbyqxmd.com/read/27605089/ductal-spread-versus-high-grade-prostatic-intraepithelial-neoplasia-a-diagnostic-pitfall
#3
Andres M Acosta, Asma Sharif, John V Groth, Andre Kajdacsy-Balla
Ductal spread (DS) of acinar adenocarcinoma of the prostate can lead to an incomplete replacement of the benign epithelium by cancer cells, resulting in a lesion that can be indistinguishable from high-grade prostatic intraepithelial neoplasia (HGPIN). Kovi and colleagues demonstrated 30 years ago that there is a significant association between the presence of DS and local extent of invasive adenocarcinoma, making the distinction between DS and HGPIN clinically relevant. However, despite the existence of certain morphologic features that are suggestive of DS, a definitive differentiation between the aforementioned lesions cannot always be attained...
September 7, 2016: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/27556788/non-prostate-specific-membrane-antigen-avid-metastatic-lung-nodule-from-primary-prostatic-adenocarcinoma
#4
Deepa Shetty, Han Loh, Chuong Bui, Robert Mansberg, Amirazin Hadjashrafi, Viet Do
Ga-prostate-specific membrane antigen (PSMA) PET/CT is increasingly used to evaluate recurrent prostatic malignancy due to its high specificity. A 56-year-old man with previous history of treated prostate cancer 4 years earlier presented with rising prostate-specific antigen level and underwent Ga-PSMA PET/CT, which demonstrated an enlarging pulmonary nodule without PSMA avidity. The pulmonary nodule, however, showed moderate uptake on a corresponding FDG PET/CT study, suspicious of primary lung malignancy...
October 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27518362/early-detection-of-pancreatic-cancer-a-defined-future-using-lessons-from-other-cancers-a-white-paper
#5
Barbara J Kenner, Suresh T Chari, Anirban Maitra, Sudhir Srivastava, Deborah F Cleeter, Vay Liang W Go, Laura J Rothschild, Ann E Goldberg
The implementation of effective early detection programs has significantly improved treatment, prognosis, and life expectancy in breast, prostate, and colorectal cancers. Early-detection methods need to be developed for pancreatic ductal adenocarcinoma (PDAC), where progress during the past decades has remained slow. Addressing this need, the forum "Early Detection: Lessons Learned from Other Cancers" was held in November 2015 and presented by the Kenner Family Research Fund in partnership with the American Pancreatic Association...
September 2016: Pancreas
https://www.readbyqxmd.com/read/27424525/african-americans-with-pancreatic-ductal-adenocarcinoma-exhibit-gender-differences-in-kaiso-expression
#6
Jacqueline Jones, Angana Mukherjee, Balasubramanyam Karanam, Melissa Davis, Jesse Jaynes, R Renee Reams, Windy Dean-Colomb, Clayton Yates
Kaiso, a bi-modal transcription factor, regulates gene expression, and is elevated in breast, prostate, and colon cancers. Depletion of Kaiso in other cancer types leads to a reduction in markers for the epithelial-mesenchymal transition (EMT) (Jones et al., 2014), however its clinical implications in pancreatic ductal adenocarcinoma (PDCA) have not been widely explored. PDCA is rarely detected at an early stage but is characterized by rapid progression and invasiveness. We now report the significance of the subcellular localization of Kaiso in PDCAs from African Americans...
October 1, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27401634/intraductal-carcinoma-of-the-prostate-gland-recent-advances
#7
REVIEW
Mukul K Divatia, Jae Y Ro
Intraductal carcinoma of the prostate (IDC-P) is characterized by prostatic carcinoma involving ducts and/or acini. The presence of IDC-P is usually associated with a high-grade Gleason score, large tumor volume, and adverse prognostic parameters, including extraprostatic extension and seminal vesicle invasion. When present, IDC-P is associated with worse outcomes, regardless of treatment status. IDC-P is included in a broader diagnostic category of atypical cribriform lesions of the prostate gland. This category of lesions also includes high-grade prostatic intraepithelial neoplasia (HGPIN), urothelial carcinoma involving prostatic ducts or acini, and prostatic ductal adenocarcinoma, amongst other intraductal proliferations...
September 2016: Yonsei Medical Journal
https://www.readbyqxmd.com/read/27343980/an-improved-ctc-isolation-scheme-for-pairing-with-downstream-genomics-demonstrating-clinical-utility-in-metastatic-prostate-lung-and-pancreatic-cancer
#8
Gayatri Premasekharan, Elizabeth Gilbert, Ross A Okimoto, Ashiya Hamirani, Karla J Lindquist, Vy T Ngo, Ritu Roy, Jeffrey Hough, Matthew Edwards, Rosa Paz, Adam Foye, Riddhi Sood, Kirsten A Copren, Matthew Gubens, Eric J Small, Trever G Bivona, Eric A Collisson, Terence W Friedlander, Pamela L Paris
Improvements in technologies to yield purer circulating tumor cells (CTCs) will enable a broader range of clinical applications. We have previously demonstrated the use of a commercially available cell-adhesion matrix (CAM) assay to capture invasive CTCs (iCTCs). To improve the purity of the isolated iCTCs, here we used fluorescence-activated cell sorting (FACS) in combination with the CAM assay (CAM + FACS). Our results showed an increase of median purity from the CAM assay to CAM + FACS for the spiked-in cell lines and patient samples analyzed from three different metastatic cancer types: castration resistant prostate cancer (mCRPC), non-small cell lung cancer (mNSCLC) and pancreatic ductal adenocarcinoma cancer (mPDAC)...
September 28, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27335785/ductal-adenocarcinoma-of-the-prostate-with-a-rare-clinical-presentation-late-gastric-metastasis
#9
Hasan Huseyin Tavukcu, Omer Aytac, Fatma Aktepe, Fatih Atug, Levent Erdem, Coskun Tecimer
A 67 year male had robotic prostatectomy whose pathology revealed mixed type prostate cancer composed of 55% ductal and 45% acinar components. The patient was then admitted to hospital with sudden health problems including ascites and serious vomiting attacks in the 46th month after prostatectomy and the PSA test was 4565 ng/mL. Gastroscopic biopsy was reported and proved immunhistochemically undifferentiated ductal prostate cancer metastasis. This is the first report of late gastric metastasis of ductal prostate cancer...
July 2016: Urology Case Reports
https://www.readbyqxmd.com/read/27321992/ductal-adenocarcinoma-of-the-prostate-histogenesis-biology-and-clinicopathological-features
#10
REVIEW
Amanda H Seipel, Brett Delahunt, Hemamali Samaratunga, Lars Egevad
Ductal adenocarcinoma of the prostate (DAC) is recognised as a subtype of prostatic adenocarcinoma, but its diagnostic criteria and biology remain controversial. DAC was first thought to stem from Müllerian duct remnants, but further studies suggest a prostatic origin. DAC is composed of tall, columnar, pseudostratified epithelium with a papillary, cribriform, glandular or solid architecture. The diagnosis is based on morphology alone with papillary architecture being the most helpful diagnostic feature...
August 2016: Pathology
https://www.readbyqxmd.com/read/27174534/management-and-therapeutic-response-of-a-prostate-ductal-adenocarcinoma-a-still-unknown-tumour
#11
Eugenio Martorana, Salvatore Micali, Giacomo Maria Pirola, Luca Reggiani Bonetti, Vera Clò, Ahmed Ghaith, Giampaolo Bianchi
Ductal adenocarcinoma is a rare subtype of prostate cancer with a worse prognosis.Histologically, it is characterized by the presence of tall, pseudostratified columnar epithelium with abundant cytoplasm organized in a papillary or cribriform-papillary pattern. Several clinical differences distinguish this subtype of prostate cancer by the conventional acinar adenocarcinoma: exophytic growth into the prostatic urethra, different clinical presentation, different sites of metastasis and more aggressiveness. The rarity of this tumour forced to base our knowledge on small case series or on individual case reports, and does not help to establish appropriate guidelines...
May 6, 2016: Urologia
https://www.readbyqxmd.com/read/27141183/undiagnosed-prostatic-malignancy-at-the-time-of-radical-cystoprostatectomy-after-prior-prostatic-radiation-therapy
#12
Pranav Sharma, Kamran Zargar-Shoshtari, Philippe E Spiess, Wade J Sexton, Michael A Poch
PURPOSE: We determined the prevalence of prostatic malignancy in patients undergoing radical cystoprostatectomy (RC) for urothelial carcinoma (UC) with a history of radiation therapy (XRT) treatment for prostatic adenocarcinoma (PCa). MATERIALS AND METHODS: Fifty-three men who underwent a RC for UC that were previously treated for PCa with XRT were retrospectively identified. Pathology reports were reviewed to assess for residual PCa or prostatic UC at the time of surgery...
April 2016: Urology Annals
https://www.readbyqxmd.com/read/27133669/prostate-cancer-with-a-pseudocapsule-at-mr-imaging-a-marker-of-high-grade-and-stage-disease
#13
Apurva A Bonde, Elena K Korngold, Bryan R Foster, Antonio C Westphalen, David R Pettersson, Megan L Troxell, Jeffry P Simko, Fergus V Coakley
Clinicopathological correlates of prostate cancer associated with a pseudocapsule at T2-weighted magnetic resonance (MR) imaging are presented in a retrospective series of 15 patients. Of 15 tumors, 14 involved the peripheral zone. Extracapsular extension was seen in 14 cases. Tumor Gleason score was 8 or above in 12 of 15 cases, and ductal type adenocarcinoma was identified in 4 cases. Step section histopathological correlation (n=5) demonstrated that the pseudocapsule corresponded with dense compressive or reactive peritumoral fibrosis...
May 2016: Clinical Imaging
https://www.readbyqxmd.com/read/27041926/the-update-of-prostatic-ductal-adenocarcinoma
#14
REVIEW
Tantan Liu, Yingmei Wang, Ru Zhou, Haiyang Li, Hong Cheng, Jing Zhang
Since initially described in 1967, prostatic ductal adenocarcinoma (PDA) has engendered a series of controversies on its origin, histological features, and biological behavior. Owing to the improvement of molecular biological technique, there are some updated findings on the characteristics of PDA. In the current review, we will mainly analyze its origin, clinical manifestations, morphological features, differential diagnosis, immunophenotype and molecular genetics, with the purpose of enhancing recognition of this tumor and making a correct diagnosis and treatment choice...
February 2016: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/26934354/-diagnostic-problems-and-prognostic-factors-in-prostate-cancer
#15
Miklós Tarján
We aimed to refine the methodology for discriminating ductal (DAP) and acinar adenocarcinomas (AAP) of the prostate preoperatively with a high degree of accuracy, and confirm that prostate carcinoma of ductal origin is a more aggressive subtype. Moreover, we intended to evaluate the clinical utility of transrectal ultrasound-guided systematic sextant or octant biopsies in prediction of extracapsular extension (ECE) at radical prostatectomy. A blinded retrospective analysis of 3-dimensional histology specimens from 110 consecutive radical prostatectomy (RP) cases operated between 2000 and 2006 was carried out (average follow-up: 5...
March 2, 2016: Magyar Onkologia
https://www.readbyqxmd.com/read/26900818/spectrum-of-cystic-epithelial-tumors-of-the-prostate-most-cystadenocarcinomas-are-ductal-type-with-intracystic-papillary-pattern
#16
Gladell P Paner, Antonio Lopez-Beltran, Jeffrey S So, Tatjana Antic, Toyonori Tsuzuki, Jesse K McKenney
Cystic epithelial tumors arising from the prostate are rare, and their full histologic spectrum has yet to be defined. Herein, we present 8 examples of prostatic cystic tumors including 1 giant multilocular cystadenoma and 7 cystadenocarcinomas. We divided the cystadenocarcinomas into "giant multilocular" cystadenocarcinoma (3) and "microscopic" cystadenocarcinoma (4) because of their differing clinical presentations with clinically apparent cystic masses in the former. The cystadenoma was an 11 cm multilocular cystic pelvic tumor in a 55-year-old man who presented with lower urinary tract symptoms...
July 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/26893770/advanced-prostatic-ductal-carcinoma-in-a-patient-with-a-long-survival-time-following-a-total-pelvis-exenteration-a-case-report
#17
Changwei Ji, Ming Zhou, Weidong Gan, Jinyu Zheng, Xiang Yan, Hongqian Guo
Ductal adenocarcinoma of the prostate (DAP) is a rare variant of prostate cancer, and has poorly-identified clinical characteristics. Few cases have been previously reported in Chinese males and DAP is more commonly reported in Caucasian males over 70-years of age. In the present study, a 55-year-old Chinese male patient that demonstrated typical lower urinary tract symptoms and normal prostatic-specific antigen levels underwent a transurethral resection of the prostate. The patient was subsequently diagnosed with DAP...
February 2016: Oncology Letters
https://www.readbyqxmd.com/read/26881187/primary-lymphoepithelioma-like-carcinoma-of-the-prostate-gland-a-review-of-the-literature
#18
REVIEW
Anthony Kodzo-Grey Venyo
Background. Primary lymphoepithelioma-like carcinoma of the prostate gland (PLELCP) is rare with hardly any information on its diagnostic features and biological behaviour. Aim. To review the literature. Method. Various Internet data bases were searched. Literature Review. PLELCP is extremely rare and there are hardly any pictures of the tumour involving the prostate; hence it would appear that clinicians would need to use their knowledge of the microscopic and immunohistochemical characteristics of the tumour in the nasopharynx and urinary bladder as diagnostic aid...
2016: Scientifica
https://www.readbyqxmd.com/read/26848801/differential-diagnosis-of-intraductal-lesions-of-the-prostate
#19
Sara E Wobker, Jonathan I Epstein
The category of intraductal lesions of the prostate includes a range of primary prostatic and nonprostatic processes with wide variation in prognosis and recommended follow-up. Studies have shown that pathologists are uncomfortable with the diagnosis of these lesions and that the diagnostic reproducibility is low in this category. Despite the diagnostic difficulty, their accurate and reproducible diagnosis is critical for patient management. This review aims to highlight the diagnostic criteria, prognosis, and treatment implications of common intraductal lesions of the prostate...
June 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/26837903/variants-and-unusual-patterns-of-prostate-cancer
#20
REVIEW
Samson W Fine
Beyond the typical acinar morphology observed in most prostatic adenocarcinoma, a spectrum of morphologic variants and prostate cancer subtypes exists. These unusual entities may be further classified into (1) cancer morphologies arising by divergent differentiation of prostatic ductal, acinar, or basal cells and associated with unique clinical features or therapeutic approaches, and (2) histologies occurring in the context of usual prostatic adenocarcinoma that may result in diagnostic misinterpretation or difficulties in Gleason grade assignment, especially in limited samples...
December 2008: Surgical Pathology Clinics
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