1,720,969 research outputs found
The role of cervical smear in the diagnosis and management of extra-uterine malignancies metastatic to the cervix: Three case reports
No full textABSTRACT
This report analyses the clinicopathologic features of three metastatic extragenital neoplasms to the cervix. These examples of metastatic extragenital malignancies to the cervix are cutaneous malignant melanoma, colorectal carcinoma, and breast carcinoma. The diagnosis of these metastatic malignancies was suspected on a historical basis. The value of Pap smears is limited on the other hand, since for a correct diagnosis in all our cases, this examination required corroboration by histological and immunohistochemical analysis. In all these examples of extragenital metastatic neoplasms, as in other cases reported
in literature, the patients had undergone cervical smear because of vaginal bleeding, even if Pap smear is considered a questionable maneuver in vaginal bleeding. Accordingly, our article reveals that a great deal of rigorous screening, precise morphological analysis, and plentiful clinical data are mandatory in approaching diagnoses of extracervical malignancies. However, this study did demonstrate that cytology does not alter patient management or outcome. In effect, in accordance with other studies, our cases of metastatic extragenital neoplasms to the uterus have poor prognosis
Dual therapy with high or low doses of omeprazole does not achieve an acceptable rate of Helicobacter pylori eradication in duodenal ulcer patients. A multicentre randomized long-term detailed study.
No full textBronchial glomus tumor mimicking a COPD exacerbation
No full textWe report the case of a glomus tumor originating in the left main bronchus diagnosed in a 79 year old Caucasian man. A glomus tumor is an extremely rare neoplasm in the bronchi with nonspecific clinical features. Bronchoscopy allows the diagnosis through biopsy and subsequent histopathological examination of the tissue and in selected cases may represent a valid alternative to surgery permitting a radical tumor excision
Membrano-proliferative glomerulonephritis, atypical hemolytic uremic syndrome, and a new complement factor H mutation: report of a case.
No full textA renal cancer with intermediate characteristics between collecting (Bellini) duct carcinoma and urothelial carcinoma: case report and review of the literature.
No full textCollecting duct carcinoma of the kidney is a rare and aggressive neoplasm of the distal collecting tube, often metastatic at the time of the diagnosis, for which there is no established therapy. We herein describe the case of a 65-year-old man with a renal cancer with a particular immunohistochemical pattern and pathologic aspect. The lesion was diagnosed as a tumor borderline between a urothelial carcinoma with intraductal spreading and a collecting duct carcinoma with calyceal and pelvic spreading. The patient is disease-free 11 months after diagnosis, after radical surgery with adjuvant chemotherapy (carboplatin and gemcitabine) and radiotherapy of a local recurrence. Owing to the common embryologic origin of collecting duct and transitional urothelial cells, several authors have reported an association between collecting duct carcinoma and urothelial cancer. The literature is reviewed to evaluate drugs active against urothelial cancer (like ifosfamide, paclitaxel, carboplatin and gemcitabine). This field should be investigated in the future, in the framework of a neoadjuvant or adjuvant chemotherapy able to support radical surgery for local and advanced collecting duct carcinoma
Atypical haemolytic uraemic syndrome with underlying glomerulopathies. A case series and a review of the literature
No full textBackground. Primary or secondary glomerulonephritis has been anecdotally reported in association with atypical haemolytic uraemic syndrome (aHUS). We here report a series of six patients who developed aHUS and glomerulopathy, and review the literature on aHUS and glomerulonephritis. Methods. Out of all patients diagnosed at our unit with biopsy-proven glomerular diseases between March 2007 and October 2011, selected cases developing aHUS during the follow-up are presented. The following tests were performed in all six patients: serum C3 and C4 levels, ADAMTS13 activity, CFH levels and anti-CFH autoantibodies and genetic screening for CFH, MCP, CFI, C3 and CFHR1-3 mutations and risk haplotypes associated with aHUS. Results. Two hundred and forty-eight patients received a biopsy-proven diagnosis of glomerulopathy and were followed for a median of 31 months (range 2-58). Of these, six developed aHUS, within a median of 15 months (range 1-36) of their initial diagnosis of glomerulopathy. One of these patients had focal segmental glomerulosclerosis (FSGS), two membranoproliferative glomerulonephritis (MPGN) type I, one C3 glomerulonephritis and two systemic small vessel vasculitis [one granulomatosis with polyangiitis (Wegener's), one Henoch-Schoenlein purpura]. Five patients (one of them heterozygous for a CFH mutation) carried, in homo- or heterozygosity, the risk haplotype CFH-H3 (CFH tgtgt), previously described to be associated with aHUS, while another one patient was homozygous for the MCPggaac risk haplotype predisposing to aHUS when present on both alleles. Conclusions. Different types of glomerulopathies can be complicated by aHUS. Several mechanisms can contribute to this association, such as nephrotic-range proteinuria, mutations or aHUS-risk haplotypes involving genes encoding alternative complement regulatory proteins in some patients and inflammatory triggers associated with systemic immune-mediated disease
Three months of octreotide treatment decreases gastric acid secretion and argyrophil cell density in patients with Zollinger-Ellison syndrome and antral G-cell hyperfunction.
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
- …
