scholarly journals Malignant Tumors Misdiagnosed as Liver Hemangiomas

2021 ◽  
Vol 8 ◽  
Author(s):  
Murat Baki Yıldırım ◽  
İbrahim Tayfun Şahiner ◽  
Arzu Poyanlı ◽  
Bülent Acunaş ◽  
Mine Güllüoǧlu ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Malignant Tumors ◽  
Metastatic Tumor ◽  
Thoracic Wall ◽  
Unknown Primary ◽  
Diagnostic Modality ◽  
Liver Hemangioma ◽  
Magnetic Resonance Imaging Mri ◽  
Proper Interpretation

Background and Aim: To derive lessons from the data of patients who were followed for various periods with the misdiagnosis of liver hemangioma and eventually found to have a malignancy.Material and Methods: The records of 23 patients treated between 2003 and 2018 were analyzed retrospectively.Results: Twelve patients were men and 11 were women; median (range) age was 55 (35–80). The principal diagnostic modality for the initial diagnosis was ultrasonography (n:8), magnetic resonance imaging (MRI) (n:13), and computed tomography (CT) (n:2). At our institution, MRI was performed in 16 patients; the diagnosis was made with the available MRI and CT studies in five and two patients, respectively. In other words, the ultrasonography interpretations were not confirmed on MRI; in others, the MRI or CT examinations were of low quality or they had not been interpreted properly. Fifteen patients underwent surgery; the other patients received chemotherapy (n:6) or chemoembolization (n:2). The misdiagnosis caused a median (range) 10 (0–96) months delay in treatment. The final diagnoses were hepatocellular carcinoma in 12 patients, cholangiocarcinoma in four patients, metastatic mesenchymal tumor, metastasis of colon cancer, metastatic neuroendocrine carcinoma, sarcomatoid hepatocellular carcinoma, angiosarcoma, thoracic wall tumor, and metastatic tumor of unknown primary in one patient each.Conclusions: High-quality MRI with proper interpretation and judicious follow up are vital for the accurate differential diagnosis of liver lesions.

scholarly journals Recurrence of bladder cancer in the urethra

2021 ◽  
Vol 14 (2) ◽  
pp. 40-45
Author(s):  
V.V Protoshchak ◽  
◽  
A.A. Sivakov ◽  
V.K. Karandashov ◽  
L.M. Sinelnikov ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Clinical Observation ◽  
Cytological Study ◽  
Malignant Tumors ◽  
Abdominal Organs ◽  
Clinical Interest ◽  
Magnetic Resonance Imaging Mri ◽  
Recurrent Bladder Cancer ◽  
External Genital Organs

Introduction. Bladder cancer (ВС) is one of the most common malignant tumors of the urinary tract. In recent decades, recurrent BC in the urethra has become increasingly common. Given the rarity of this pathology, it is of clinical interest for oncologists and urologists. Materials and methods. A clinical case of recurrent bladder cancer in the urethra in a 63-year-old patient is presented. The results of magnetic resonance imaging (MRI) of the pelvic organs and external genital organs, as well as the results of computed tomography of the abdominal organs and observation by a hematologist are presented. Results. For early diagnosis of tumor changes in the urethra in patients with risk factors for the recurrence of BC after cystectomy, careful observation in the form of a cytological study of flushing water from it, performing urethroscopy with ascending urethrography and MRI of the external genital organs is advisable. Conclusions. This clinical observation demonstrates the importance of assessing the state of the urethra when follow up patients after radical cystectomy for BC.

scholarly journals Magnetically guided theranostics: montmorillonite-based iron/platinum nanoparticles for enhancing in situ MRI contrast and hepatocellular carcinoma treatment

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Ming-Hsien Chan ◽  
Chih-Ning Lu ◽  
Yi-Lung Chung ◽  
Yu-Chan Chang ◽  
Chien-Hsiu Li ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Malignant Tumors ◽  
Fept Nanoparticles ◽  
Signal Ratio ◽  
Mri Contrast ◽  
Magnetic Fluid Hyperthermia ◽  
Iron Platinum ◽  
Long Time ◽  
Magnetic Resonance Imaging Mri

AbstractIn Asia, including Taiwan, malignant tumors such as Hepatocellular carcinoma (HCC) one of the liver cancer is the most diagnosed subtype. Magnetic resonance imaging (MRI) has been a typical diagnostic method for accurately diagnosing HCC. When it is difficult to demonstrate non-enhanced MRI of tumors, radiologists can use contrast agents (such as Gd3+, Fe3O4, or FePt) for T1-weighted and T2-weighted imaging remain in the liver for a long time to facilitate diagnosis via MRI. However, it is sometimes difficult for T2-weighted imaging to detect small tumor lesions because the liver tissue may absorb iron ions. This makes early cancer detection a challenging goal. This challenge has prompted current research to create novel nanocomposites for enhancing the noise-to-signal ratio of MRI. To develop a method that can more efficiently diagnose and simultaneously treat HCC during MRI examination, we designed a functionalized montmorillonite (MMT) material with a porous structure to benefit related drugs, such as mitoxantrone (MIT) delivery or as a carrier for the FePt nanoparticles (FePt NPs) to introduce cancer therapy. Multifunctional FePt@MMT can simultaneously visualize HCC by enhancing MRI signals, treating various diseases, and being used as an inducer of magnetic fluid hyperthermia (MFH). After loading the drug MIT, FePt@MMT-MIT provides both MFH treatment and chemotherapy in one nanosystem. These results ultimately prove that functionalized FePt@MMT-MIT could be integrated as a versatile drugs delivery system by combining with MRI, chemotheraeutic drugs, and magnetic guide targeting.

scholarly journals Magnetically Guided Theranostics: Enhancing the Contrast of Magnetic Resonance Imaging With Multiple-Layer Montmorillonite-Based Iron/Platinum Nanoparticles for the Treatment of Orthotopic Hepatocellular Carcinoma

2021 ◽  
Author(s):  
Ming-Hsien Chan ◽  
Chi-Ning Lu ◽  
Yi-Lung Chung ◽  
Yu-Chan Chang ◽  
Chien-Hsiu Li ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Hepatocellular Carcinoma ◽  
Magnetic Resonance ◽  
Malignant Tumors ◽  
Fept Nanoparticles ◽  
Resonance Imaging ◽  
Magnetic Fluid Hyperthermia ◽  
Iron Platinum ◽  
Long Time ◽  
Magnetic Resonance Imaging Mri

Abstract In Asia, including Taiwan, malignant tumors such as Hepatocellular carcinoma (HCC) one of the liver cancer is the most diagnosed subtype. Magnetic resonance imaging (MRI) has been a typical diagnostic method for accurately diagnosing HCC. When it is difficult to demonstrate non-enhanced MRI of tumors, radiologists can use contrast agents (such as Gd3+, Fe3O4, or FePt) for T1-weighted and T2-weighted imaging, which can remain in the liver for a long time to facilitate diagnosis via MRI. However, sometimes it is difficult for T2-weighted imaging to detect small tumor lesions because the liver tissue may actively absorb iron ions. This makes early cancer detection a challenging goal. To develop a method that can more efficiently diagnose and simultaneously treat HCC during MRI examination, we designed a functionalized montmorillonite (MMT) material with a porous structure to benefit related drugs, such as mitoxantrone (MIT) delivery or as a carrier for the FePt nanoparticles (FePt NPs) to introduce cancer therapy. Multifunctional FePt@MMT can simultaneously visualize and treat various diseases and can be used as an inducer of magnetic fluid hyperthermia (MFH). After loading the drug MIT, FePt@MMT-MIT provides both MFH treatment and chemotherapy in one nanosystem. These results ultimately prove that functionalized FePt@MMT-MIT could be integrated as a versatile drugs delivery system by combining with MRI, chemotherapeutic drugs, and magnetic guide targeting.

scholarly journals Precision TACE in therapy of primary malignant tumors of liver/hepatocellular carcinoma (HCC)

2009 ◽  
Vol 56 (4) ◽  
pp. 143-148 ◽  
Author(s):  
A. Bojanovic ◽  
P. Bosnjakovic ◽  
M. Stojanovic ◽  
M. Markovic ◽  
M. Mrvic ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Hepatocellular Carcinoma ◽  
Malignant Tumors ◽  
Therapeutic Effects ◽  
Feeding Artery ◽  
Liver Malignancy ◽  
Follow Up Study ◽  
Liver Hepatocellular Carcinoma

AIM: Hepatocellular carcinoma is one of the most frequent malignant tumors in general and most common liver malignancy. Aim of this study was to determine the therapeutic effect of chemoembolization with microspheres charged with doxorubicin in HHC patients. MATERIAL AND METHODS: During for period of four-year (November 2005- November 2009) at Institute of radiology CC Ni transarterial chemoembolization procedures (precision TACE) was performed on 27 patients. There were 17 male and 10 female patients with average age of 62 years. Total number of 64 TACE interventions were done in total, minimally one, maximally 6 per patient. HCC was patohystologically verified in all patients included in this study. After selective catheterization of tumor feeding artery, followed by application of microspheres a follow-up study with evaluation of therapeutic effects was conducted. RESULTS: Patients were enrolled in the study and followed four years in total. The therapy effects were estimated according to RECIST criteria. CONCLUSION: Precision TACE represents effective and controlled method for application of chemotherapeutic agencies with reduced systemic toxicity. Our preliminary results show increased therapeutic efficacy, diminished mortality and subsequently prolonged survival rate and improved quality of life in patients with HCC.

scholarly journals Anterior Clinoid Metastasis Removed Extradurally: First Case Report

2018 ◽  
Vol 79 (02) ◽  
pp. e55-e62 ◽  
Author(s):  
Mirza Pojskić ◽  
Blazej Zbytek ◽  
Kenan Arnautović
Keyword(s):  
Case Report ◽  
Malignant Tumors ◽  
Tumor Resection ◽  
Disease Recurrence ◽  
Double Vision ◽  
Anterior Clinoid Process ◽  
First Case ◽  
Magnetic Resonance Imaging Mri ◽  
The Right

Background We report a case of isolated metastasis on the anterior clinoid process (ACP) mimicking meningioma. Clinical Presentation A 58-year-old male presented with headaches, right-sided visual disturbances, and blurred and double vision. The cause of double vision was partial weakness of the right III nerve, resulting from compression of the nerve by “hypertrophied” tumor-involved right anterior clinoid. Medical history revealed two primary malignant tumors—male breast cancer and prostate cancer (diagnosed 6 and 18 months prior, respectively). The patient was treated with chemotherapy and showed no signs of active disease, recurrence, or metastasis. Postcontrast head magnetic resonance imaging (MRI) showed extra-axial well-bordered enhancing mass measuring 1.6 × 1.1 × 1 × 1 cm (anteroposterior, transverse, and craniocaudal dimensions) on the ACP, resembling a clinoidal meningioma. Extradural clinoidectomy with tumor resection was performed via right orbitozygomatic pretemporal skull base approach. Visual symptoms improved. Follow-up MRI showed no signs of tumor residual or recurrence. Conclusion This is the first case report of a metastasis of any kind on ACP. Metastasis should be included as a part of the differential diagnosis of lesions of the anterior clinoid. Extradural clinoidectomy is a safe and effective method in the treatment of these tumors.

Desmoid tumour of the distal forearm involving the distal radioulnar joint

2020 ◽  
Vol 13 (11) ◽  
pp. e237097
Author(s):  
Apoorv Sehgal ◽  
Pratyush Shahi ◽  
Avijeet Prasad ◽  
Manoj Bhagirathi Mallikarjunaswamy
Keyword(s):  
Distal Radioulnar Joint ◽  
Treatment Modalities ◽  
Desmoid Tumour ◽  
X Rays ◽  
Distal Forearm ◽  
Left Wrist ◽  
Radioulnar Joint ◽  
Magnetic Resonance Imaging Mri ◽  
Epidemiology Investigation

A 32-year-old woman presented with progressive pain and swelling of the left wrist for 6 months. Physical examination revealed a firm, tender, oval swelling over the left wrist. X-rays showed a pressure effect on the distal radius and ulna. Magnetic Resonance Imaging (MRI) revealed a well-defined, asymmetrical, dumbbell-shaped soft-tissue lesion involving the interosseous region of the distal forearm and extending until the distal radioulnar joint (DRUJ). Core needle biopsy confirmed the diagnosis of desmoid tumour. Marginal excision of the tumour was done. At the 2-year follow-up, the patient was doing well and had painless and improved left wrist motion. Desmoid tumour involving the DRUJ has not been previously reported. We, through this case, report new observation and discuss the epidemiology, investigation of choice, treatment modalities, and the need for a regular follow-up for appendicular desmoid tumours.

scholarly journals Comprehensive analyses of competing endogenous RNA networks reveal potential biomarkers for predicting hepatocellular carcinoma recurrence

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ping Yan ◽  
Zuotian Huang ◽  
Tong Mou ◽  
Yunhai Luo ◽  
Yanyao Liu ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Malignant Tumors ◽  
Expression Profiles ◽  
Clinical Information ◽  
Gene Expression Omnibus ◽  
The Cancer Genome Atlas ◽  
High Rate ◽  
Competing Endogenous Rna ◽  
Tissue Samples ◽  
Potential Biomarkers

Abstract Background Hepatocellular carcinoma (HCC) is one of the most common and deadly malignant tumors, with a high rate of recurrence worldwide. This study aimed to investigate the mechanism underlying the progression of HCC and to identify recurrence-related biomarkers. Methods We first analyzed 132 HCC patients with paired tumor and adjacent normal tissue samples from the Gene Expression Omnibus (GEO) database to identify differentially expressed genes (DEGs). The expression profiles and clinical information of 372 HCC patients from The Cancer Genome Atlas (TCGA) database were next analyzed to further validate the DEGs, construct competing endogenous RNA (ceRNA) networks and discover the prognostic genes associated with recurrence. Finally, several recurrence-related genes were evaluated in two external cohorts, consisting of fifty-two and forty-nine HCC patients, respectively. Results With the comprehensive strategies of data mining, two potential interactive ceRNA networks were constructed based on the competitive relationships of the ceRNA hypothesis. The ‘upregulated’ ceRNA network consists of 6 upregulated lncRNAs, 3 downregulated miRNAs and 5 upregulated mRNAs, and the ‘downregulated’ network includes 4 downregulated lncRNAs, 12 upregulated miRNAs and 67 downregulated mRNAs. Survival analysis of the genes in the ceRNA networks demonstrated that 20 mRNAs were significantly associated with recurrence-free survival (RFS). Based on the prognostic mRNAs, a four-gene signature (ADH4, DNASE1L3, HGFAC and MELK) was established with the least absolute shrinkage and selection operator (LASSO) algorithm to predict the RFS of HCC patients, the performance of which was evaluated by receiver operating characteristic curves. The signature was also validated in two external cohort and displayed effective discrimination and prediction for the RFS of HCC patients. Conclusions In conclusion, the present study elucidated the underlying mechanisms of tumorigenesis and progression, provided two visualized ceRNA networks and successfully identified several potential biomarkers for HCC recurrence prediction and targeted therapies.

scholarly journals Brain atrophy and clinical characteristics predicting SDMT performance in multiple sclerosis: A 10-year follow-up study

2021 ◽  
Vol 7 (1) ◽  
pp. 205521732199239
Author(s):  
Cecilie Jacobsen ◽  
Robert Zivadinov ◽  
Kjell-Morten Myhr ◽  
Turi O Dalaker ◽  
Ingvild Dalen ◽  
...  
Keyword(s):  
Clinical Data ◽  
Grey Matter Volume ◽  
Lesion Volume ◽  
Information Processing Speed ◽  
Disability Status ◽  
Mri Scans ◽  
Patients At Risk ◽  
Magnetic Resonance Imaging Mri ◽  
Specific Volumes

Objectives To identify Magnetic Resonance Imaging (MRI), clinical and demographic biomarkers predictive of worsening information processing speed (IPS) as measured by Symbol Digit Modalities Test (SDMT). Methods Demographic, clinical data and 1.5 T MRI scans were collected in 76 patients at time of inclusion, and after 5 and 10 years. Global and tissue-specific volumes were calculated at each time point. For the primary outcome of analysis, SDMT was used. Results Worsening SDMT at 5-year follow-up was predicted by baseline age, Expanded Disability Status Scale (EDSS), SDMT, whole brain volume (WBV) and T2 lesion volume (LV), explaining 30.2% of the variance of SDMT. At 10-year follow-up, age, EDSS, grey matter volume (GMV) and T1 LV explained 39.4% of the variance of SDMT change. Conclusion This longitudinal study shows that baseline MRI-markers, demographic and clinical data can help predict worsening IPS. Identification of patients at risk of IPS decline is of importance as follow-up, treatment and rehabilitation can be optimized.

Penile Lymphoepithelioma-Like Carcinoma: A Rare Case With PD-L1 Expression

2021 ◽  
pp. 106689692098834
Author(s):  
Raquel Machado-Neves ◽  
Bernardo Teixeira ◽  
Elsa Fonseca ◽  
Pedro Valente ◽  
Joaquim Lindoro ◽  
...  
Keyword(s):  
Human Papillomavirus ◽  
Tumor Cells ◽  
Rare Case ◽  
Malignant Tumors ◽  
Squamous Cell Carcinomas ◽  
The Third ◽  
The Past ◽  
First Case ◽  
Lymphoplasmacytic Infiltrate

Most malignant tumors of the penis are squamous cell carcinomas (SCC), being divided in 2 groups, one human papillomavirus (HPV)-related and another non-HPV-related, with lymphoepithelioma-like carcinoma (LELC) being one of the rarest HPV-related SCC. In this article, we report a case of a 50-year-old man who presented testicular swelling and pain for the past 3 months. A penile mass was identified, and the patient was submitted to a total penectomy. The penectomy specimen showed an ulcerated lesion at the glans reaching the cavernous bodies. Microscopic examination showed undifferentiated epithelial cells with syncytial growth pattern mix with a dense lymphoplasmacytic infiltrate, consistent with LELC. The tumor cells expressed p16 and all 3 different clones of PDL1 (22C3, SP263, and SP142). The patient is alive and well with a follow-up of 3 months. To our knowledge, this is the third LELC of the penis reported in literature and the first case reported with PDL1 expression.

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