151 research outputs found
A Review
Ovarian cancer is the most common cause of death among gynecological malignancies. We discuss different types of clinical and nonclinical features that are used to study and analyze the differences between benign and malignant ovarian tumors. Computer-aided diagnostic (CAD) systems of high accuracy are being developed as an initial test for ovarian tumor classification instead of biopsy, which is the current gold standard diagnostic test. We also discuss different aspects of developing a reliable CAD system for the automated classification of ovarian cancer into benign and malignant types. A brief description of the commonly used classifiers in ultrasound-based CAD systems is also given
Ultrasonography and atypical sites of endometriosis
In the present pictorial we show the ultrasonographic appearances of endometriosis
in atypical sites. Scar endometriosis may present as a hypoechoic solid nodule with hyperechoic
spots while umbilical endometriosis may appear as solid or partially cystic areas with ill-defined
margins. In the case of endometriosis of the rectus muscle, ultrasonography usually demonstrates
a heterogeneous hypoechogenic formation with indistinct edges. Inguinal endometriosis is quite
variable in its ultrasonographic presentation showing a completely solid mass or a mixed solid
and cystic mass. The typical ultrasonographic finding associated with perineal endometriosis is
the presence of a solid lesion near to the episiotomy scar. Under ultrasonography, appendiceal
endometriosis is characterized by a solid lesion in the wall of the small bowel, usually well defined.
Superficial hepatic endometriosis is characterized by a small hypoechoic lesion interrupting the hepatic
capsula, usually hyperechoic. Ultrasound endometriosis of the pancreas is characterized by a small
hypoechoic lesion while endometriosis of the kidney is characterized by a hyperechoic small nodule.
Diaphragmatic endometriosis showed typically small hypoechoic lesions. Only peripheral nerves can
be investigated using ultrasound, with a typical solid appearance. In conclusion, ultrasonography
seems to have a fundamental role in the majority of endometriosis cases in “atypical” sites, in all the
cases where “typical” clinical findings are present
Imaging in gynecological disease (17): ultrasound features of malignant ovarian yolk sac tumors (endodermal sinus tumors)
Objective To describe the clinical and sonographic
characteristics of malignant ovarian yolk sac tumors
(YSTs).
Methods In this retrospective multicenter study, we
included 21 patients with a histological diagnosis of
ovarian YST and available transvaginal ultrasound
images and/or videoclips and/or a detailed ultrasound
report. Ten patients identified from the International Results All cases were pure YSTs, except for one that
was a mixed tumor (80% YST and 20% embryonal
carcinoma). Median age at diagnosis was 25 (interquartile
range (IQR), 19.5–30.5) years. Seventy-six percent
(16/21) of women had an International Federation of
Gynecology and Obstetrics (FIGO) Stage I–II tumor at
diagnosis. Fifty-eight percent (11/19) of women felt pain
during the ultrasound examination and one presented
with ovarian torsion. Median serum α-fetoprotein (S-AFP)
level was 4755 (IQR, 1071–25 303) μg/L and median
serum CA 125 level was 126 (IQR, 35–227) kU/L. On
ultrasound assessment, 95% (20/21) of tumors were
unilateral. The median maximum tumor diameter was
157 (IQR, 107–181) mm and the largest solid component
was 110 (IQR, 66–159) mm. Tumors were classified as either multilocular-solid (10/21; 48%) or solid (11/21;
52%). Papillary projections were found in 10% (2/21) of
cases. Most (20/21; 95%) tumors were well vascularized
(color score, 3–4) and none had acoustic shadowing.
Malignancy was suspected in all cases, except in the
patient with ovarian torsion, who presented a tumor with
a color score of 1, which was classified as probably benign.
Image and videoclip quality was considered as adequate
in 18/21 cases. On review of the images and videoclips, we
found that all tumors contained both solid components
and cystic spaces, and that 89% (16/18) had irregular, still
fine-textured and slightly hyperechoic solid tissue, giving
them a characteristic appearance.
Conclusion Malignant ovarian YSTs are often detected
at an early stage, in young women usually in the second
or third decade of life, presenting with pain and markedly
elevated S-AFP. On ultrasound, malignant ovarian YSTs
are mostly unilateral, large and multilocular-solid or solid,
with fine-textured slightly hyperechoic solid tissue and
rich vascularization. © 2020 The Authors. Ultrasound
in Obstetrics & Gynecology published by John Wiley
& Sons Ltd on behalf of the International Society of
Ultrasound in Obstetrics and Gynecology
SANI-Severe Asthma Network in Italy: a way forward to monitor severe asthma
Even if severe asthma (SA) accounts for 5-10% of all cases of the disease, it is currently a crucial unmet need, owing its difficult clinical management and its high social costs. For this reason several networks, focused on SA have been organized in some countries, in order to select these patients, to recognize their clinical features, to evaluate their adherence, to classify their biological/clinical phenotypes, to identify their eligibility to the new biologic therapies and to quantify the costs of the disease. Aim of the present paper is to describe the ongoing Italian Severe Asthma Network (SANI). Up today 49 centres have been selected, widespread on the national territory. Sharing the same diagnostic protocol, data regarding patients with SA will be collected and processed in a web platform. After their recruitment, SA patients will be followed in the long term in order to investigate the natural history of the disease. Besides clinical data, the cost/benefit evaluation of the new biologics will be verified as well as the search of peculiar biomarker(s) of the disease
"Delirium Day": A nationwide point prevalence study of delirium in older hospitalized patients using an easy standardized diagnostic tool
Background: To date, delirium prevalence in adult acute hospital populations has been estimated generally from pooled findings of single-center studies and/or among specific patient populations. Furthermore, the number of participants in these studies has not exceeded a few hundred. To overcome these limitations, we have determined, in a multicenter study, the prevalence of delirium over a single day among a large population of patients admitted to acute and rehabilitation hospital wards in Italy. Methods: This is a point prevalence study (called "Delirium Day") including 1867 older patients (aged 65 years or more) across 108 acute and 12 rehabilitation wards in Italian hospitals. Delirium was assessed on the same day in all patients using the 4AT, a validated and briefly administered tool which does not require training. We also collected data regarding motoric subtypes of delirium, functional and nutritional status, dementia, comorbidity, medications, feeding tubes, peripheral venous and urinary catheters, and physical restraints. Results: The mean sample age was 82.0 \ub1 7.5 years (58 % female). Overall, 429 patients (22.9 %) had delirium. Hypoactive was the commonest subtype (132/344 patients, 38.5 %), followed by mixed, hyperactive, and nonmotoric delirium. The prevalence was highest in Neurology (28.5 %) and Geriatrics (24.7 %), lowest in Rehabilitation (14.0 %), and intermediate in Orthopedic (20.6 %) and Internal Medicine wards (21.4 %). In a multivariable logistic regression, age (odds ratio [OR] 1.03, 95 % confidence interval [CI] 1.01-1.05), Activities of Daily Living dependence (OR 1.19, 95 % CI 1.12-1.27), dementia (OR 3.25, 95 % CI 2.41-4.38), malnutrition (OR 2.01, 95 % CI 1.29-3.14), and use of antipsychotics (OR 2.03, 95 % CI 1.45-2.82), feeding tubes (OR 2.51, 95 % CI 1.11-5.66), peripheral venous catheters (OR 1.41, 95 % CI 1.06-1.87), urinary catheters (OR 1.73, 95 % CI 1.30-2.29), and physical restraints (OR 1.84, 95 % CI 1.40-2.40) were associated with delirium. Admission to Neurology wards was also associated with delirium (OR 2.00, 95 % CI 1.29-3.14), while admission to other settings was not. Conclusions: Delirium occurred in more than one out of five patients in acute and rehabilitation hospital wards. Prevalence was highest in Neurology and lowest in Rehabilitation divisions. The "Delirium Day" project might become a useful method to assess delirium across hospital settings and a benchmarking platform for future surveys
31st Annual Meeting and Associated Programs of the Society for Immunotherapy of Cancer (SITC 2016) : part two
Background
The immunological escape of tumors represents one of the main ob- stacles to the treatment of malignancies. The blockade of PD-1 or CTLA-4 receptors represented a milestone in the history of immunotherapy. However, immune checkpoint inhibitors seem to be effective in specific cohorts of patients. It has been proposed that their efficacy relies on the presence of an immunological response. Thus, we hypothesized that disruption of the PD-L1/PD-1 axis would synergize with our oncolytic vaccine platform PeptiCRAd.
Methods
We used murine B16OVA in vivo tumor models and flow cytometry analysis to investigate the immunological background.
Results
First, we found that high-burden B16OVA tumors were refractory to combination immunotherapy. However, with a more aggressive schedule, tumors with a lower burden were more susceptible to the combination of PeptiCRAd and PD-L1 blockade. The therapy signifi- cantly increased the median survival of mice (Fig. 7). Interestingly, the reduced growth of contralaterally injected B16F10 cells sug- gested the presence of a long lasting immunological memory also against non-targeted antigens. Concerning the functional state of tumor infiltrating lymphocytes (TILs), we found that all the immune therapies would enhance the percentage of activated (PD-1pos TIM- 3neg) T lymphocytes and reduce the amount of exhausted (PD-1pos TIM-3pos) cells compared to placebo. As expected, we found that PeptiCRAd monotherapy could increase the number of antigen spe- cific CD8+ T cells compared to other treatments. However, only the combination with PD-L1 blockade could significantly increase the ra- tio between activated and exhausted pentamer positive cells (p= 0.0058), suggesting that by disrupting the PD-1/PD-L1 axis we could decrease the amount of dysfunctional antigen specific T cells. We ob- served that the anatomical location deeply influenced the state of CD4+ and CD8+ T lymphocytes. In fact, TIM-3 expression was in- creased by 2 fold on TILs compared to splenic and lymphoid T cells. In the CD8+ compartment, the expression of PD-1 on the surface seemed to be restricted to the tumor micro-environment, while CD4 + T cells had a high expression of PD-1 also in lymphoid organs. Interestingly, we found that the levels of PD-1 were significantly higher on CD8+ T cells than on CD4+ T cells into the tumor micro- environment (p < 0.0001).
Conclusions
In conclusion, we demonstrated that the efficacy of immune check- point inhibitors might be strongly enhanced by their combination with cancer vaccines. PeptiCRAd was able to increase the number of antigen-specific T cells and PD-L1 blockade prevented their exhaus- tion, resulting in long-lasting immunological memory and increased median survival
- …