|Poll|May 7, 2015

Large Mediastinal Mass Found in 35-Year-Old Patient

Author(s)Cesar A. Moran, MD

A 35-year-old woman presents with chest pain. Imaging shows a large anterior mediastinal mass. What is your diagnosis?

A 35-year-old woman presents with chest pain. Imaging shows a large anterior mediastinal mass.

What is your diagnosis?

Stay up to date on recent advances in the multidisciplinary approach to cancer.

Subscribe Now!

Latest CME

Video

22nd Annual International Symposium on Melanoma and Other Cutaneous Malignancies®

Omid Hamid, MD; Sapna Patel, MD

Video

Community Oncology Connections™: Beyond Primary End Points – Digging Into Randomized and Real-World Data to Guide Challenging Treatment Decisions in HR+/HER2− Metastatic Breast Cancer | North Carolina Oncology Association

Marla D. Lipsyc-Sharf, MD; Yan Ji, MD

Video

Community Oncology Connections™: Beyond Primary End Points – Digging Into Randomized and Real-World Data to Guide Challenging Treatment Decisions in HR+/HER2− Metastatic Breast Cancer | New Mexico Society of Clinical Oncology

Marla D. Lipsyc-Sharf, MD; Kimberly Ku, MD

Video

Addressing Unmet Needs in HER2+ Metastatic BTC

Rahul Gosain, MD, MBA; Rohit Gosain, MD; Ghassan Abou-Alfa, MD, MBA

Multimedia

Community Practice Connections™: Tailored Treatment Approaches for Older Patients With Advanced HR+/HER2– Breast Cancer

Hope S. Rugo, MD, FASCO; Neil M. Iyengar, MD; Komal Jhaveri, MD, FACP

Multimedia

Community Practice Connections™: Optimizing Treatment Outcomes and Preserving Fertility in Premenopausal HR+ Breast Cancer

Rebecca Shatsky, MD; Kelly McCann, MD, PhD; Michelle L. Taylor, ANP-BC

Video

From Bench to Bedside: Paradigm Shifts in HER2+ Metastatic BTC Treatment

Rahul Gosain, MD, MBA; Rohit Gosain, MD; Shubham Pant, MD, MBBS

Video

Proactive Adverse Event Management for HER2+ BTC Treatments

Rahul Gosain, MD, MBA; Rohit Gosain, MD; Rachna T. Shroff, MD, MS, FASCO

Multimedia

Community Practice Connections™: Empowering Interventional Radiologists in the Emerging Era of Oncolytic Immunotherapies for Melanoma

Yana G. Najjar, MD; Douglas B. Johnson, MD, MSCI; Rahul A. Sheth, MD, FSIR

Video

A Case-Guided Discussion on Managing Immune Thrombocytopenic Purpura (ITP)

Cindy Neunert, MD, MSCS; Hanny Al-Samkari, MD; Joseph Shatzel, MD, MCR

Video

Medical Crossfire®: Expert Perspectives on Targeting c-Met Overexpression and 𝘔𝘌𝘛 Genomic Alterations in NSCLC – Unveiling the Complexities of 𝘔𝘌𝘛 Dysregulation

Rebecca Heist, MD, MPH; Alex A. Adjei, MD, PhD, FACP; Sandip Patel, MD, FASCO; Jeremy Segal, MD, PhD

Video

GI Tumor Board—Applying Recent Advances in Biomarker Testing and Treatment in Metastatic Colorectal Cancer

John H. Strickler, MD; Stacey A. Cohen, MD; Aparna Parikh, MD; Kanwal P.S. Raghav, MBBS, MD

Video

Medical Crossfire®: Harnessing the Power of Modern Therapies in Newly Diagnosed Multiple Myeloma

C. Ola Landgren, MD, PhD; Mohamad Mohty, MD, PhD; Surbhi Sidana, MD

Video

Cases & Conversations™: Transforming AML Care—Precision Strategies, Evolving Therapies, and Clinical Insights

Gail J. Roboz, MD; Hagop Kantarjian, MD; Catherine Lai, MD, MPH; Amer Zeidan, MBBS, MHS

Video

Medical Crossfire®: Integrating Next-Generation Endocrine Targeting Therapies to Improve Outcomes for Patients With HR+/HER2- Breast Cancer

William J. Gradishar, MD, FASCO, FACP; Laura Huppert, MD; Yuan Yuan, MD, PhD

Video

Tumor Board: Expert Insights on Managing Classical 𝘌𝘎𝘍𝘙 Mutations, 𝘌𝘎𝘍𝘙 Exon 20 Insertions, and Atypical 𝘌𝘎𝘍𝘙 Mutations in Metastatic NSCLC

Balazs Halmos, MD, MS; Enriqueta Felip, MD, PhD; Julia Rotow, MD

Video

Medical Crossfire®: Improving Patient Outcomes in Myeloproliferative Neoplasms With Novel Therapeutic Approaches

Rami Komrokji, MD; Gabriela Hobbs, MD; John Mascarenhas, MD; Naveen Pemmaraju, MD

Video

Medical Crossfire®: Precision Medicine in Glioma Treatment — Integration of Molecular Profiling to Inform Targeted Therapies

Vinay K. Puduvalli, MD; Manmeet Ahluwalia, MD, MBA; Stephen J. Bagley, MD, MSCE; Angela Waanders, MD, MPH, MS

Video

PER Tumor Board®: Applying Recent Advances to Transform the Treatment Paradigm in SCLC—Expert Perspectives on New Approvals and Emerging Strategies

Jonathan W. Goldman, MD; Percy Lee, MD, FASTRO; Erminia Massarelli, MD, PhD, MS; Misty D. Shields, MD, PhD

Multimedia

Evaluating the Latest Data and Ongoing Trials for Novel ADC Approaches in TNBC

Aditya Bardia, MD, MPH, FASCO; Erika P. Hamilton, MD

Multimedia

Breaking Down the Rationale for Targeting TROP2 in TNBC

Filipa Lynce, MD; Rita Nanda, MD

Audio

Breaking Down the Latest Clinical Data for First-line Maintenance and R/R SCLC

Rahul Gosain, MD, MBA; Rohit Gosain, MD; Hossein Borghaei, DO, MS

Video

Cross-Disease Integration of Immunotherapy Innovations

Ghassan Abou-Alfa, MD, MBA; Laura Williams Goff, MD, MSCI, MMHC, FASCO; Arndt Vogel, MD, PhD

Video

Optimizing Treatment for Biliary Tract Cancers

Ghassan Abou-Alfa, MD, MBA; Laura Williams Goff, MD, MSCI, MMHC, FASCO; Arndt Vogel, MD, PhD

Multimedia

PER Resource Center: Integrating Novel Approaches in TNBC – New Avenues for TROP2-Targeting ADCs and Beyond – Nursing

Aditya Bardia, MD, MPH, FASCO; Erika P. Hamilton, MD; Virginia Kaklamani, MD, DSc; Filipa Lynce, MD; Rita Nanda, MD; Tiffany A. Traina, MD, FASCO

Video

Show Me the Data®: New and Emerging Roles for Oral SERD Therapy in the Treatment of ER+/HER2– Breast Cancer

Ana C. Garrido-Castro, MD; Pedram Razavi, MD, PhD

Multimedia

Working Together: Overcoming Barriers to Optimize Outcomes in Patients Treated With Radioligand Therapy Through Multidisciplinary Care

Jeremie Calais, MD, PhD; Tanya B. Dorff, MD; Nerina McDonald, MSPAS, PA-C; Scott T. Tagawa, MD, MS, FACP, FASCO

Multimedia

Ready for Radioligand Therapy? Patient Selection and Sequencing Simplified

Jeremie Calais, MD, PhD; Tanya B. Dorff, MD; Scott T. Tagawa, MD, MS, FACP, FASCO

Video

A New Era of Targeted Therapy for Advanced NSCLC: Exploring Future Directions for Bispecific Antibodies and ADCs

Sandip Patel, MD, FASCO; Myung-Ju Ahn, MD; Giannis Mountzios, MD, MSc, PhD; Zofia Piotrowska, MD, MHS

Video

Community Oncology Connections™: Beyond Primary End Points – Digging Into Randomized and Real-World Data to Guide Challenging Treatment Decisions in HR+/HER2− Metastatic Breast Cancer | Rocky Mountain Oncology Society

Seth A. Wander, MD, PhD; Kara M. Schenk, MD

Virtual Event

Oncology Town Hall - Translating the Latest Updates Into the Care of Patients With AML in Community Practices

April 9, 2026

In-Person + Virtual Event

11th Annual School of Gastrointestinal Oncology® (SOGO®)

April 11, 2026

In-Person + Virtual Event

Tumor Board: Clinical Integration of Molecular Profiling in Glioma - Transforming the Use of Targeted Therapy

April 20, 2026

Video

Evolving Treatment Strategies in Pancreatic Cancer: Current Standards, Emerging Targets, and the Role of Molecular Testing

Eileen M. O’Reilly, MD; E. Gabriela Chiorean, MD, FASCO; Michael J. Pishvaian, MD, PhD; Brian Wolpin, MD, MPH

$Cases and Conversations™: Sorting Through the Expanding Treatment Options for Patients with Relapsed/Refractory Multiple Myeloma$

Video

Cases and Conversations™: Sorting Through the Expanding Treatment Options for Patients with Relapsed/Refractory Multiple Myeloma

C. Ola Landgren, MD, PhD; Mohamad Mohty, MD, PhD; Surbhi Sidana, MD

Video

Breast Cancer Tumor Board: Targeting TROP2 – Innovations in Triple-Negative Breast Cancer Treatment

Joyce O’Shaughnessy, MD; Matthew P. Goetz, MD; Hope S. Rugo, MD, FASCO

Multimedia

Establishing the Rationale for ADC and ICI Combinations in TNBC

Virginia Kaklamani, MD, DSc; Tiffany A. Traina, MD, FASCO

Multimedia

Expert Guidance on Frequently Asked Questions Regarding the Use of ADCs in TNBC

Aditya Bardia, MD, MPH, FASCO; Erika P. Hamilton, MD; Virginia Kaklamani, MD, DSc

Multimedia

Dissecting Clinical Trial and Real-World Data for ADCs in TNBC

Filipa Lynce, MD; Rita Nanda, MD

Video

Broadening the Frontline—Studies Informing the Use of Immunotherapy in Hepatocellular Carcinoma

Ghassan Abou-Alfa, MD, MBA; Laura Williams Goff, MD, MSCI, MMHC, FASCO; Arndt Vogel, MD, PhD

Audio

Practical Considerations and Future Directions for New Treatment Strategies in SCLC

Rahul Gosain, MD, MBA; Rohit Gosain, MD; Misty D. Shields, MD, PhD

Multimedia

Expert Roundtable and Panel Discussions: Current and Future Landscape of TNBC

Aditya Bardia, MD, MPH, FASCO; Erika P. Hamilton, MD; Tiffany A. Traina, MD, FASCO

Audio

Navigating Treatment Gaps in SCLC: Relapse, Resistance, and Need for New Options

Rahul Gosain, MD, MBA; Rohit Gosain, MD; Giannis Mountzios ΜD, PhD

Video

Medical Crossfire® in Adjunctive Testing: Charting a New Course in Prostate Cancer Risk Assessment

Jason Hafron, MD; Aaron D. Berger, MD; Arpeet Shah, MD

Multimedia

BURST CME™ Resource Center: Integrating Novel PSMA-Directed Radioligand Approaches for Diagnosis and Management of Prostate Cancer

Jeremie Calais, MD, PhD; Tanya B. Dorff, MD; Nerina McDonald, MSPAS, PA-C; Scott T. Tagawa, MD, MS, FACP, FASCO

Multimedia

Radioligand Therapy 101: The Science Behind the Strategy

Jeremie Calais, MD, PhD; Tanya B. Dorff, MD; Scott T. Tagawa, MD, MS, FACP, FASCO

Multimedia

Imaging Matters: Decoding PSMA PET for Better Decision-Making

Jeremie Calais, MD, PhD; Tanya B. Dorff, MD; Scott T. Tagawa, MD, MS, FACP, FASCO

Video

Advances in Managing EGFR-Mutant NSCLC: Applying Evidence Across the Disease Continuum

Tina Cascone, MD, PhD; Christina Baik, MD, MPH; David Planchard, MD, PhD

Multimedia

Large Mediastinal Mass Found in 35-Year-Old Patient

Newsletter

Related Content

38-Year-Old Woman With Breast Mass

52-Year-Old Woman With Dysphagia and Dyspnea and Nodule in Neck

56-Year-Old Man With Subcutaneous Soft Tissue Mass in Right Leg

Thyroid Nodule Found in 43-Year-Old Man

23-Year-Old Woman Presents With Cervical Lymphadenopathy

Latest CME

22nd Annual International Symposium on Melanoma and Other Cutaneous Malignancies®

Community Oncology Connections™: Beyond Primary End Points – Digging Into Randomized and Real-World Data to Guide Challenging Treatment Decisions in HR+/HER2− Metastatic Breast Cancer | North Carolina Oncology Association

Community Oncology Connections™: Beyond Primary End Points – Digging Into Randomized and Real-World Data to Guide Challenging Treatment Decisions in HR+/HER2− Metastatic Breast Cancer | New Mexico Society of Clinical Oncology

Addressing Unmet Needs in HER2+ Metastatic BTC

Community Practice Connections™: Tailored Treatment Approaches for Older Patients With Advanced HR+/HER2– Breast Cancer

Community Practice Connections™: Optimizing Treatment Outcomes and Preserving Fertility in Premenopausal HR+ Breast Cancer

From Bench to Bedside: Paradigm Shifts in HER2+ Metastatic BTC Treatment

Proactive Adverse Event Management for HER2+ BTC Treatments

Community Practice Connections™: Empowering Interventional Radiologists in the Emerging Era of Oncolytic Immunotherapies for Melanoma

A Case-Guided Discussion on Managing Immune Thrombocytopenic Purpura (ITP)

Medical Crossfire®: Expert Perspectives on Targeting c-Met Overexpression and 𝘔𝘌𝘛 Genomic Alterations in NSCLC – Unveiling the Complexities of 𝘔𝘌𝘛 Dysregulation

GI Tumor Board—Applying Recent Advances in Biomarker Testing and Treatment in Metastatic Colorectal Cancer

Medical Crossfire®: Harnessing the Power of Modern Therapies in Newly Diagnosed Multiple Myeloma

Cases & Conversations™: Transforming AML Care—Precision Strategies, Evolving Therapies, and Clinical Insights

Medical Crossfire®: Integrating Next-Generation Endocrine Targeting Therapies to Improve Outcomes for Patients With HR+/HER2- Breast Cancer

Tumor Board: Expert Insights on Managing Classical 𝘌𝘎𝘍𝘙 Mutations, 𝘌𝘎𝘍𝘙 Exon 20 Insertions, and Atypical 𝘌𝘎𝘍𝘙 Mutations in Metastatic NSCLC

Medical Crossfire®: Improving Patient Outcomes in Myeloproliferative Neoplasms With Novel Therapeutic Approaches

Medical Crossfire®: Precision Medicine in Glioma Treatment — Integration of Molecular Profiling to Inform Targeted Therapies

PER Tumor Board®: Applying Recent Advances to Transform the Treatment Paradigm in SCLC—Expert Perspectives on New Approvals and Emerging Strategies

Evaluating the Latest Data and Ongoing Trials for Novel ADC Approaches in TNBC

Breaking Down the Rationale for Targeting TROP2 in TNBC

Breaking Down the Latest Clinical Data for First-line Maintenance and R/R SCLC

Cross-Disease Integration of Immunotherapy Innovations

Optimizing Treatment for Biliary Tract Cancers

PER Resource Center: Integrating Novel Approaches in TNBC – New Avenues for TROP2-Targeting ADCs and Beyond – Nursing

Show Me the Data®: New and Emerging Roles for Oral SERD Therapy in the Treatment of ER+/HER2– Breast Cancer

Working Together: Overcoming Barriers to Optimize Outcomes in Patients Treated With Radioligand Therapy Through Multidisciplinary Care

Ready for Radioligand Therapy? Patient Selection and Sequencing Simplified

A New Era of Targeted Therapy for Advanced NSCLC: Exploring Future Directions for Bispecific Antibodies and ADCs

Community Oncology Connections™: Beyond Primary End Points – Digging Into Randomized and Real-World Data to Guide Challenging Treatment Decisions in HR+/HER2− Metastatic Breast Cancer | Rocky Mountain Oncology Society

Oncology Town Hall - Translating the Latest Updates Into the Care of Patients With AML in Community Practices

11th Annual School of Gastrointestinal Oncology® (SOGO®)

Tumor Board: Clinical Integration of Molecular Profiling in Glioma - Transforming the Use of Targeted Therapy

Evolving Treatment Strategies in Pancreatic Cancer: Current Standards, Emerging Targets, and the Role of Molecular Testing

Cases and Conversations™: Sorting Through the Expanding Treatment Options for Patients with Relapsed/Refractory Multiple Myeloma

Breast Cancer Tumor Board: Targeting TROP2 – Innovations in Triple-Negative Breast Cancer Treatment

Establishing the Rationale for ADC and ICI Combinations in TNBC

Expert Guidance on Frequently Asked Questions Regarding the Use of ADCs in TNBC

Dissecting Clinical Trial and Real-World Data for ADCs in TNBC

Broadening the Frontline—Studies Informing the Use of Immunotherapy in Hepatocellular Carcinoma

Practical Considerations and Future Directions for New Treatment Strategies in SCLC

Expert Roundtable and Panel Discussions: Current and Future Landscape of TNBC

Navigating Treatment Gaps in SCLC: Relapse, Resistance, and Need for New Options

Medical Crossfire® in Adjunctive Testing: Charting a New Course in Prostate Cancer Risk Assessment

BURST CME™ Resource Center: Integrating Novel PSMA-Directed Radioligand Approaches for Diagnosis and Management of Prostate Cancer

Radioligand Therapy 101: The Science Behind the Strategy

Imaging Matters: Decoding PSMA PET for Better Decision-Making

Advances in Managing EGFR-Mutant NSCLC: Applying Evidence Across the Disease Continuum

Community Practice Connections™: Enhancing Melanoma Outcomes With Intratumoral Oncolytic Immunotherapy–Strategies for the Multidisciplinary Team

Trending on CancerNetwork

Low-Dose CT Screening Reduces Lung Cancer–Specific Mortality

FDA Approves Companion Diagnostic for Pembrolizumab in Esophageal/GEJ Carcinoma

Frontline IO-Combos, Next-Generation ADCs: Evolutions in Endometrial Cancer

Reprogramming T Cells: The Promise of In Vivo Site-Specific CAR Engineering

Optimizing Therapeutic Strategies Across Treatment Lines in Advanced RCC