|Poll|December 19, 2011

HIV-Positive Male Presents With Multiple Symptoms and Has a History of Colonic Polyps

A 20-year-old HIV positive male presents with headache, nausea, and vomiting following a seizure. History is notable for three surgeries to remove colonic polyps. Subsequent MRI brain scan with contrast reveals a mass in the left frontal lobe which is removed. The image above is an H&E stained section of the mass.

Click here to see the whole slide image.

Click here for the comparative pathology.

The most likely diagnosis is:

A. Medulloblastoma
B. Glioblastoma multiforme
C. Metastasis from the colon
D. Primary lymphoma of the brain

Newsletter

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

Subscribe Now!

Related Content

Latest CME

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

View more
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 | Empire State Hematology & Oncology Society
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 | Empire State Hematology & Oncology Society

Seth A. Wander, MD, PhD; Girish Kunapareddy, MD

View more
Arkansas Association of Cancer Professionals
Virtual Event

Arkansas Association of Cancer Professionals

2 Sessions are Available!

View more
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 | South Carolina Oncology Society
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 | South Carolina Oncology Society

Seth A. Wander, MD, PhD; Kit Lu, MD

View more
19th Annual New York GU Cancers Congress®
Video

19th Annual New York GU Cancers Congress®

Maha Hussain, MD, FACP, FASCO; Daniel P. Petrylak, MD

View more
Go to PER in Chicago
In-Person + Virtual Event

Go to PER in Chicago

May 29-31, 2026

View more
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 | Tennessee Oncology Practice Society
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 | Tennessee Oncology Practice Society

Seth A. Wander, MD, PhD; Kamel Abou Hussein, MD

View more
Iowa Oncology Society
Virtual Event

Iowa Oncology Society

1 Session is Available!

View more
Kansas Society of Clinical Oncology
Virtual Event

Kansas Society of Clinical Oncology

1 Session is Available!

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

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

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

View more
Louisiana Oncology Society
Virtual Event

Louisiana Oncology Society

1 Session is Available!

View more
Missouri Oncology Society
Virtual Event

Missouri Oncology Society

1 Session is Available!

View more
New Mexico Society of Clinical Oncology
Virtual Event

New Mexico Society of Clinical Oncology

1 Session is Available!

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

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

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

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

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

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

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

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

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

View more
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

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

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

View more
Establishing the Rationale for ADC and ICI Combinations in TNBC
Multimedia

Establishing the Rationale for ADC and ICI Combinations in TNBC

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

View more
Breaking Down the Rationale for Targeting TROP2 in TNBC
Multimedia

Breaking Down the Rationale for Targeting TROP2 in TNBC

Filipa Lynce, MD; Rita Nanda, MD

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

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

Filipa Lynce, MD; Rita Nanda, MD

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

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

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

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

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

View more
Cross-Disease Integration of Immunotherapy Innovations
Video

Cross-Disease Integration of Immunotherapy Innovations

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

View more
Optimizing Treatment for Biliary Tract Cancers
Video

Optimizing Treatment for Biliary Tract Cancers

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

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

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

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

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

View more
Practical Considerations and Future Directions for New Treatment Strategies in SCLC
Audio

Practical Considerations and Future Directions for New Treatment Strategies in SCLC

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

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

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

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

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

View more
Imaging Matters: Decoding PSMA PET for Better Decision-Making
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

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

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

View more
Ready for Radioligand Therapy? Patient Selection and Sequencing Simplified
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

View more
Radioligand Therapy 101: The Science Behind the Strategy
Multimedia

Radioligand Therapy 101: The Science Behind the Strategy

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

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

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

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

Yana G. Najjar, MD; Sapna Patel, MD

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

View more
Navigating Advances in Neovascular Retinal Disease: Translating Evidence to Practice in AMD, DME, and RVO
Video

Navigating Advances in Neovascular Retinal Disease: Translating Evidence to Practice in AMD, DME, and RVO

SriniVas R. Sadda, MD, FARVO; Mark R. Barakat, MD, FASRS; David A. Eichenbaum, MD, FASRS

View more
Enhancing Prostate Cancer Outcomes – The Role of PSMA and Targeted Treatment Strategies
Video

Enhancing Prostate Cancer Outcomes – The Role of PSMA and Targeted Treatment Strategies

Ana Kiess, MD, PhD; Erin Grady, MD, CCD, FACNM, FSNMMI; Himanshu Nagar, MD, MS; Scott T. Tagawa, MD, MS, FASCO, FACP

View more
(CME Track) Antibody–Drug Conjugates in Oncology: The Essentials of AE Management for Better Patient Outcomes
Video

(CME Track) Antibody–Drug Conjugates in Oncology: The Essentials of AE Management for Better Patient Outcomes

Michelle L. Taylor, ANP-BC; Emely Alfaro, DNP, RN, CNS, OCN; Paige Griffith, CRNP; Beth Sandy, MSN, CRNP, FAPO

View more