6,485 results match your criteria: "Imaging in Prostate Carcinoma"

Article Synopsis
  • Stereotactic body radiation therapy (SBRT) delivers precise, high-dose radiation to tumors, particularly effective in treating genitourinary cancers like prostate and renal cell carcinoma, due to their increased sensitivity to this method compared to traditional radiation.* -
  • Advances in radiation planning and imaging have boosted the evidence supporting SBRT's use and its clinical application, leading to ongoing trials and investigations into its efficacy for both localized and metastatic diseases.* -
  • Future research will focus on optimizing SBRT techniques, refining treatment indications, and exploring combinations with systemic therapies to enhance treatment effectiveness and improve patients' quality of life.*
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Article Synopsis
  • * It presents a specific case of an 89-year-old man with SBO due to jejunal adenocarcinoma that invaded hernia mesh from previous surgery, highlighting how his cancer and prior treatments contributed to the obstruction.
  • * The findings suggest a complex relationship between surgical history, cancer progression, and SBO, emphasizing the need for careful management due to the significant healthcare costs associated with these conditions.
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[Ga]Ga-PSMA-617 PET/MRI for imaging patients suspected of hepatocellular carcinoma.

Eur J Nucl Med Mol Imaging

November 2024

Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei Province, China.

Purpose: Radiolabeled probes targeting prostate-specific membrane antigen (PSMA) have been used in prostate cancer. Moreover, PSMA is also overexpressed on neovessels in hepatocellular carcinoma (HCC). This study aimed to preliminarily evaluate the diagnostic effectiveness of [Ga]Ga-PSMA-617 PET/MRI for HCC.

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Background: The potential of carbon ion radiation therapy (CIRT) as a curative treatment for localized prostate cancer (PCa) has garnered attention due to its characteristic dose distribution. We prospectively collected and analyzed over five years to investigate the outcomes of localized PCa treated with CIRT at our institution.

Patients And Methods: The study included patients with histologically confirmed prostate adenocarcinoma.

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Common incidental urological lesions on computed tomography images: What to do with renal and adrenal computed tomography incidentalomas in a primary care setting.

Aust J Gen Pract

November 2024

MBBS, PhD, FRACS (Urol), Professor, Department of Surgery, The University of Melbourne, Melbourne, Vic; Founding Director, EJ Whitten Prostate Cancer Research Centre at Epworth Healthcare, Melbourne, Vic;@Head of Unit, Department of Urology, The Royal Melbourne Hospital, Melbourne, Vic.

Article Synopsis
  • The increased use of imaging techniques has led to more frequent detection of incidental findings in the kidneys and adrenal glands, often referred to as incidentalomas, which are commonly encountered by general practitioners.* -
  • This review provides guidelines for managing these renal and adrenal masses, highlighting that renal lesions are seen in about 14% of CT scans and should be assessed using the Bosniak classification for cystic lesions.* -
  • For renal cell carcinomas larger than 4 cm or showing symptoms, active treatment is recommended, while adrenal lesions require functional testing, with specific screening tests indicated based on clinical signs such as hypertension.*
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Primary squamous cell carcinoma of the prostate.

BMJ Case Rep

November 2024

School of Clinical Medicine, UNSW Medicine and Health, UNSW Sydney, Sydney, New South Wales, Australia.

Primary squamous cell carcinoma of the prostate is a rare entity, with limited documented cases in the medical literature. Herein, we present a case of primary prostatic squamous cell carcinoma in a male in his 60s, detailing the clinical presentation, diagnostic workup, histopathological findings and treatment. Our case highlights the diagnostic and therapeutic challenges associated with this uncommon malignancy.

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Trophoblast cell surface antigen 2 (Trop2), a transmembrane glycoprotein, plays a dual role in physiological and pathological processes. In healthy tissues, Trop2 facilitates development and orchestrates intracellular calcium signaling. However, its overexpression in numerous solid tumors shifts its function toward driving cell proliferation and metastasis, thus leading to a poor prognosis.

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Primary clear cell adenocarcinoma of the seminal vesicle with ovarian homology: A rare case report.

Medicine (Baltimore)

November 2024

Department of Pathology, Kunshan First People's Hospital, Affiliated to Jiangsu University, Kunshan, Jiangsu, China.

Rationale: Primary seminal vesicle adenocarcinoma is a rare type of male reproductive system tumor, primarily manifesting as papillary adenocarcinoma. Meanwhile, clear cell adenocarcinoma (CCA) is a common malignancy in the female reproductive system. Therefore, the occurrence of CCA in the seminal vesicle, showing ovarian homology, is even rarer.

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Proceedings from an international consensus meeting on ablation in urogenital diseases.

Insights Imaging

November 2024

Division of Vascular and Interventional Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.

Percutaneous image-guided ablation techniques are a consolidated therapeutic alternative for patients with high preoperative surgical risk for the management of oncological diseases in multiple body districts. Each technique has both pros and cons according to the type of energy delivered, mechanism of action, and site of application. The present article reviews the most recent literature results on ablation techniques applied in the field of genitourinary diseases (kidney, adrenal glands, prostate, and uterus), describing the advantages of the use of each technique and their technical limitations and summarizing the major recommendations from an international consensus meeting.

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[Clinical Value of Dual Tracer PET Imaging With Ga-PSMA and F-FDG in Patients With Metastatic Prostate Cancer].

Sichuan Da Xue Xue Bao Yi Xue Ban

September 2024

( 610041) Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu 610041, China.

Objective: In this study, we retrospectively analyzed the imaging characteristics of dual-tracer Ga-prostate specific membrane antigen (PSMA) and F-flurodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) in metastatic prostate cancer (mPCa) patients. We analyzed the uptake modes of the dual tracers, explored clinical pathological parameters affecting the F-FDG uptake in the lesions, and evaluated their prognostic implications for prostate specific antigen progression-free survival (PSA-PFS).

Methods: A total of 41 mPCa patients who underwent dual-tracer PET/CT (Ga-PSMA and F-FDG) scans between September 2021 and January 2024 were retrospectively enrolled.

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Breast cancer cells utilize T3 to trigger proliferation through cellular Ca modulation.

Cell Commun Signal

November 2024

Division of Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstraße 6/IV, Graz, 8010, Austria.

High levels of thyroid hormones are linked to increased risk and advanced stages of breast cancer. Our previous work demonstrated that the biologically active triiodothyronine (T3) facilitates mitochondrial ATP production by upregulating Ca handling proteins, thereby boosting mitochondrial Ca uptake and Krebs cycle activity. In this study, different cell types were utilized to investigate whether T3 activates a Ca-induced signaling pathway to boost cancer cell proliferation.

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[Not Available].

Bull Cancer

October 2024

Service de médecine nucléaire et UCP thyroïde, Centre François-Badesse, 3, avenue du Général-Harris, 14000 Caen, France.

Article Synopsis
  • Nuclear medicine continues to play a vital role in treating thyroid cancers, specifically through the use of iodine-131 (RAI) for differentiated thyroid cancer (DTC) and post-therapeutic scintigraphy to assess treatment response.
  • For challenging cases where RAI isn't effective, FDG PET imaging aids in diagnosis and prognosis, particularly for less than 5% of those with refractory disease and for aggressive anaplastic thyroid cancer.
  • Emerging theranostic strategies are being developed using various radiopharmaceuticals and imaging methods like 18F-DOPA, PSMA, and FAP, highlighting a shift from traditional treatments towards more personalized approaches in managing thyroid cancer.
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Introduction: Xanthogranulomatous prostatitis is a very rare benign inflammatory lesion of the prostate that may be similar to prostatic carcinoma in clinical presentation and radiological characteristics.

Case Presentation: A 77-year-old man was admitted to our hospital because of high prostate-specific antigen level. Magnetic resonance imaging showed a 6.

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Pancreatic metastasis is a rare malignant tumor; when it comes to multiple cancers, it may be a challenge to identify the primary lesion of new pancreatic metastases. With the continuous advancement of imaging technology, the PET/computed tomography (CT) has been widely used because of its high diagnostic accuracy and non-invasiveness. However, in the present case, the patient had history of limited small-cell lung carcinoma and prostatic cancer; the combined application of the three kinds of PET/CT was used to identify the new metastases of pancreatic and bone metastases, which suggested a high probability of primary G2 pancreatic neuroendocrine tumor with bone metastases.

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Multiparametric MRI (mpMRI) and prostate-specific membrane antigen (PSMA) PET/CT are complementary imaging modalities used in the presurgical evaluation of patients with prostate cancer (PCa). The purpose of this study was to characterize clinically significant PCa (csPCa) detected and not detected by PSMA PET/CT and mpMRI, focusing on tumors detected solely by PSMA PET/CT and overlooked by mpMRI. We conducted a single-center, retrospective analysis of patients who underwent both PSMA PET/CT and mpMRI within 3 mo of each other and before radical prostatectomy.

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Prostate-specific membrane antigen (PSMA) is a theranostic target for metastatic prostate cancer (PCa). However, castration-resistant PCa (CRPC) may lose PSMA expression after systemic therapy. Fibroblast activation protein (FAP), expressed by carcinoma-associated fibroblasts in various cancer types, including PCa, has the potential to be an alternative target.

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Primary urothelial carcinoma of the prostate (UCP) is extremely rare. The exact pathogenesis of this disease is not known. Currently, there is no consensus regarding the optimal treatment.

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Article Synopsis
  • Granulomatous prostatitis (GP) is a rare, non-cancerous inflammation of the prostate that can mimic prostate cancer (PCa) during evaluations.
  • The study analyzed 12 patients who developed GP after receiving BCG therapy for bladder cancer, focusing on their symptoms, MRI results, and tissue examination.
  • Histopathological analysis is crucial to accurately diagnose GP, as it differentiates it from PCa by identifying granulomas, emphasizing the need for a combined clinical and imaging approach to prevent unnecessary treatments.
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Background: Glioblastoma multiforme (GBM), a high-grade primary brain tumor, presents a formidable challenge in neuro-oncology because of its aggressive nature, infiltrative growth, and limited response to treatment. The septum pellucidum represents an uncommon and unexpected location for GBM, adding complexity to the diagnosis and management of this rare intracranial malignancy.

Observations: A 69-year-old male with a previous history of prostate carcinoma presented to an outside hospital with a 2-week history of a "trance-like state" and cognitive decline.

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Non-osteoblastic rhinosinusal and orbital metastasis due to prostate adenocarcinoma.

Arch Soc Esp Oftalmol (Engl Ed)

December 2024

Hospital de Clínicas "José de San Martín", División de Oftalmología, Universidad de Buenos Aires, Facultad de Medicina, Buenos Aires, Argentina.

Context: Bone metastases from prostate adenocarcinoma usually present osteoblastic characteristics in imaging studies.

Method: Case report.

Results: A 77-year-old patient diagnosed with prostate adenocarcinoma with osteoblastic metastases in the dorsal spine and ribs, empirically treated with decongestants for symptoms associated with nasal polyposis, presented with binocular diplopia and ptosis of the right eyelid.

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Prostate cancer is a heterogeneous disease with a spectrum of pathology and outcomes ranging from indolent to lethal. Although there have been recent advancements in prognostic tissue biomarkers, limitations still exist. We leveraged matrix-assisted laser desorption/ionization imaging of formalin-fixed, paraffin embedded prostate cancer specimens to determine if N-linked glycans expressed in the extracellular matrix of lethal neuroendocrine prostate cancer were also expressed in conventional prostate adenocarcinomas that were associated with poor outcomes.

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Tumor Volume Doubling Time of Less Than One Year is Associated with a Higher Risk of Death from Medullary Thyroid Cancer.

J Clin Endocrinol Metab

October 2024

Metabolic Disease Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD.

Context: Tumor volume doubling time (TVDT) is emerging as a useful tool in predicting oncologic outcomes. There is limited data on the prognostic role of TVDT in metastatic medullary thyroid cancer (MTC).

Purpose: The goal of this study was to assess the value of TVDT in predicting disease-specific survival (DSS) in patients with hereditary and sporadic MTC.

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Positron emission tomography (PET) using radiolabeled prostate-specific membrane antigen targeting PET-imaging agents has been increasingly used over the past decade for imaging and directing prostate carcinoma treatment. Here, we summarize the available literature data on radiomics and machine learning using these imaging agents in prostate carcinoma. Gleason scores derived from biopsy and after resection are discordant in a large number of prostate carcinoma patients.

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Laminin, fibronectin, and collagen IV are pivotal extracellular matrix (ECM) components. The ECM environment governs the fundamental properties of tumors, including proliferation, vascularization, and invasion. Given the critical role of cell-matrix adhesion in malignant tumor progression, we hypothesize that the concentrations of these proteins may be altered in the plasma of patients with clear cell renal cell carcinoma (ccRCC).

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Article Synopsis
  • The study examines the low tumor doses achieved in non-prostate cancers treated with [Lu]Lu-PSMA radioligand, using a case of renal cell carcinoma as an example.
  • Despite high uptake of the imaging agent [Ga]Ga-PSMA-11, treatment with [Lu]Lu-PSMA-I&T resulted in low radiation doses to tumors (0.2-0.5 Gy) and no observable treatment effect.
  • The researchers suggest that the ineffective targeting may be due to PSMA receptors being located on new blood vessels rather than on tumor cells, leading to rapid washout; they propose using a radionuclide with a shorter half-life to improve treatment efficacy.
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