Colorectal metastases with intrabiliary growth: incidence, treatment, and outcomes.

Intrabiliary growth (IG) is an unusual modality for colorectal metastases to spread. Relatively little is known about this condition because large series are lacking. The aim of the study was to compare the surgical and oncological outcomes of patients with or without IG.

Preoperative neck ultrasound combined with pathological data can significantly impact the outcome of medullary thyroid carcinoma.

The diagnosis of medullary thyroid carcinoma (MTC) is challenging since the accuracy of ultrasound (US) and fine-needle aspiration cytology are suboptimal. As a result, MTC has a generally poor prognosis. The aim of this study was to analyze whether perioperative data can modify the risk of relapse in these patients.

Clinical and Pathological Features and Gene Expression Profiles of Clinically Aggressive Papillary Thyroid Carcinomas.

Papillary thyroid carcinoma (PTC) is considered an indolent neoplasm but it may demonstrate aggressive behavior. We aimed to identify clinical and pathological characteristics and molecular signatures associated with aggressive forms of PTCs. We selected 43 aggressive PTC cases based on the presence of metastases at the time of diagnosis, the development of distant metastasis during follow-up, and/or biochemical recurrence, and 43 PTC patients that were disease-free upon follow-up, matching them according to age, sex, pT, and pN parameters.

Describing and Modeling Rough Composites Surfaces by Using Topological Data Analysis and Fractional Brownian Motion.

Many composite manufacturing processes employ the consolidation of pre-impregnated preforms. However, in order to obtain adequate performance of the formed part, intimate contact and molecular diffusion across the different composites' preform layers must be ensured. The latter takes place as soon as the intimate contact occurs and the temperature remains high enough during the molecular reptation characteristic time.

Adrenal Rests in the Uro-genital Tract of an Adult Population.

Ectopic adrenal rests are a rare condition which can be found in various sites, generally in the retroperitoneum or pelvis along the path of gonadal descent. Their real prevalence is unknown. Males are more commonly affected, at least in the pediatric age.

Natural history of widespread high grade prostatic intraepithelial neoplasia and atypical small acinar proliferation: should we rebiopsy them all?

Objective: To evaluate the premalignant potential of high-grade prostatic intraepithelial neoplasia (HGPIN) and atypical small acinar proliferation (ASAP).

Methods: Patients diagnosed with monofocal HGPIN (mHGPIN), widespread HGPIN (≥4 cores, wHGPIN) and/or ASAP who underwent at least one rebiopsy during their follow-up, were enrolled. All enrollment biopsies underwent central pathologic revision.

A rare case of ovarian adenomyoma mimicking primary invasive ovarian cancer with a contralateral serous borderline ovarian tumor: A case report and review of the literature.

Extrauterine adenomyoma is a rare type of benign tumor, characterized by nodular aggregate of smooth muscle, endometrial glands and endometrial stroma, arising outside the uterus. In this study we describe a case of primary ovarian adenomyoma associated with endometriotic cysts with contralateral serous borderline tumor in a 40-year-old woman and we highlight how preoperative exams could lead to the suspicious of invasive cancer. We provide a review of the literature, analyzing all cases of extrauterine adenomyoma published so far, classifying them on the basis of pathogenetic theories proposed, localization of the lesion, imaging modalities and treatment adopted.

Neuroendocrine breast carcinoma: a rare but challenging entity.

Breast carcinoma with neuroendocrine differentiation, also known as neuroendocrine breast carcinoma (NEBC), includes a heterogeneous group of rare tumors, which account for 2-5% of all invasive breast carcinomas. Because of their low incidence, most of the current limited knowledge of these tumors derives from anecdotal case reports or small retrospective series. The diagnosis of NEBC is based on the presence of morphological features similar to gastrointestinal and lung NETs and neuroendocrine markers.

Metastatic Bilateral Strumal Carcinoid: A Case Report and Review of the Literature.

Primary ovarian carcinoids are very rare tumors that belong to the germ cell family of ovarian malignancies. They account for less than 1% of all carcinoid tumors and for less than 0.1% of all ovarian neoplasms.

[Infero-postero-lateral acute myocardial infarction caused by left ventricular myxoma embolism].

The majority of myxomas are located in the left atrium (75%) followed by the right atrium (20%). In rare cases, myxomas can be found in the ventricles, with 2.5% reported for myxomas in the left ventricle.

Ultrasound-guided fine needle aspiration cytology in the diagnosis of hepatic and pancreatic perivascular epithelioid cell tumors: A case series.

Perivascular epithelioid cell tumors (PEComas) are rare mesenchymal tumors that can affect any part of the body. They can be sporadic or arise in the setting of tuberous sclerosis (TSC). In this article, we report a series of three hepatic and two pancreatic PEComas diagnosed preoperatively with ultrasound-guided fine needle aspiration (FNA).

Mitochondrial DNA "common deletion" in post-fine needle aspiration infarcted oncocytic thyroid tumors.

Thyroid fine needle aspiration (FNA) can rarely induce morphological changes potentially hindering the histopathological diagnosis, especially in Hurthle cell tumors (HCTs), which may easily undergo post-FNA infarction or necrosis. HCTs contain mitochondrion (mt)-rich cells that may bear mtDNA mutations, the most frequent being the so-called common deletion (CD). The aim of this study was to determine the presence and extent of the mtDNA CD in a series of thyroid HCTs that underwent extensive infarction following FNA procedure in comparison with a control series of HCTs lacking post-FNA ischemic/hemorrhagic alterations.

Cell-cycle Progression-score Might Improve the Current Risk Assessment in Newly Diagnosed Prostate Cancer Patients.

Objective: To assess whether cell-cycle progression (CCP)-score (Prolaris) can improve the current risk assessment in newly diagnosed prostate cancer (PCa) patients. CCP-score is a well-validated prognostic assay predictive of PCa death, biochemical recurrence, and progression.

Methods: We evaluated CCP-score at biopsy in 52 patients newly diagnosed with PCa who underwent radical prostatectomy.

Global Hypomethylation (LINE-1) and Gene-Specific Hypermethylation (GSTP1) on Initial Negative Prostate Biopsy as Markers of Prostate Cancer on a Rebiopsy.

Purpose: Men at risk of missed prostate cancer on a negative biopsy often undergo a rebiopsy. We evaluated whether global hypomethylation, measured through LINE-1 methylation, and GSTP1 hypermethylation on a negative biopsy are associated with subsequent prostate cancer diagnosis.

Experimental Design: We performed a case-control study nested in an unselected series of 737 men who received at least two prostate biopsies at least three months apart at the Molinette Hospital (Turin, Italy).

A randomized double-blind placebo controlled phase I-II study on clinical and molecular effects of dietary supplements in men with precancerous prostatic lesions. Chemoprevention or "chemopromotion"?

Background: Antioxidants effectiveness in prostate cancer (PCa) chemoprevention has been severely questioned, especially after the recent results of the Selenium and Vitamin E Cancer Prevention Trial. We present the results of a double-blind randomized controlled trial (dbRCT) on the pharmacokinetic, clinical, and molecular activity of dietary supplements containing lycopene, selenium, and green tea catechins (GTCs) in men with multifocal high grade prostatic intraepithelial neoplasia (mHGPIN) and/or atypical small acinar proliferation (ASAP).

Methods: From 2009 to 2014, we conducted a dbRCT including 60 patients with primary mHGPIN and/or ASAP receiving daily lycopene 35 mg, selenium 55 µg, and GTCs 600 mg, or placebo for 6 months.

A rare case of primary mantle cell lymphoma of the prostate: clinical aspects and open problems.

A case of primary prostate involvement by mantle-cell lymphoma diagnosed at the time of transvesical adenomectomy is reported. Diagnostic difficulties and clinical outcome are also presented. The possibility of prostate involvement by malignant lymphomas, albeit rare, should be considered in any case of histological evidence of dense prostate lymphoid infiltrate in patients with lower urinary tract obstruction, and should be highly suspected in patients with prior history of systemic lymphoma.

Proteomic identification of Reticulocalbin 1 as potential tumor marker in renal cell carcinoma.

Unlabelled: Renal cell carcinoma (RCC) biomarkers are necessary for diagnosis and prognosis. They serve to monitor therapy response and follow-up, as drug targets, and therapy predictors in personalized treatments. Proteomics is a suitable method for biomarker discovery.

Tumor staging but not grading is associated with adverse clinical outcome in neuroendocrine tumors of the appendix: a retrospective clinical pathologic analysis of 138 cases.

Appendiceal neuroendocrine neoplasms (NENs) are rare and usually incidentally discovered. Most cases are clinically indolent, although the rare aggressive ones are poorly predictable. The aim of this study was to test the applicability and prognostic significance of the new World Health Organization (WHO) classification and to test the several pathologic features and TNM staging systems (American Joint Committee on Cancer and European Neuroendocrine Tumor Society) in these tumors.

Neoadjuvant chemo-radiotherapy for locally advanced esophageal cancer: a monocentric study.

Aims And Background: Multimodal therapy is a keystone of care in advanced esophageal cancer. Although neoadjuvant chemoradiotherapy is known to provide a survival advantage in selected cases, reliable prognostic and response predictive factors remain elusive. We report the outcome in a series of esophageal cancer patients treated at our center and the results of a retrospective analysis of epidermal growth factor receptor (EGFR) expression and EGFR/HER2 gene copy numbers taken as possible prognostic and predictive factors.