PathologyOutlines.com
@pathologyoutlines.bsky.social
PathologyOutlines.com is a free, no-registration site with a unique, comprehensive, regularly updated textbook of surgical and clinical pathology, providing useful professional content for practicing pathologists and lab personnel, in 15 seconds or less.
Join us on Nov. 20 (11am ET | 4pm GMT) for a webinar on the integration of PathologyOutlines.com and PathologyMap™, HistoWiz’s digital slide platform. Learn how it enhances access to interactive whole-slide images.
🔗 buff.ly/Z8ltypQ
#Pathology #PathologyOutlines #HistoWiz #PathologyNews #PathSky
🔗 buff.ly/Z8ltypQ
#Pathology #PathologyOutlines #HistoWiz #PathologyNews #PathSky
November 13, 2025 at 7:54 PM
Join us on Nov. 20 (11am ET | 4pm GMT) for a webinar on the integration of PathologyOutlines.com and PathologyMap™, HistoWiz’s digital slide platform. Learn how it enhances access to interactive whole-slide images.
🔗 buff.ly/Z8ltypQ
#Pathology #PathologyOutlines #HistoWiz #PathologyNews #PathSky
🔗 buff.ly/Z8ltypQ
#Pathology #PathologyOutlines #HistoWiz #PathologyNews #PathSky
Image of the Week!
Contributed by: Roberto N. Miranda, M.D.
Textbook topic: Lymphoma & related disorders
Diagnosis: Plasmablastic lymphoma in HIV+ patient
Textbook topic link: www.pathologyoutlines.com/topic/lympho...
#Pathology #PathologyOutlines
Contributed by: Roberto N. Miranda, M.D.
Textbook topic: Lymphoma & related disorders
Diagnosis: Plasmablastic lymphoma in HIV+ patient
Textbook topic link: www.pathologyoutlines.com/topic/lympho...
#Pathology #PathologyOutlines
November 12, 2025 at 7:00 PM
Image of the Week!
Contributed by: Roberto N. Miranda, M.D.
Textbook topic: Lymphoma & related disorders
Diagnosis: Plasmablastic lymphoma in HIV+ patient
Textbook topic link: www.pathologyoutlines.com/topic/lympho...
#Pathology #PathologyOutlines
Contributed by: Roberto N. Miranda, M.D.
Textbook topic: Lymphoma & related disorders
Diagnosis: Plasmablastic lymphoma in HIV+ patient
Textbook topic link: www.pathologyoutlines.com/topic/lympho...
#Pathology #PathologyOutlines
Image Quiz!
An 18 year old woman presented with a destructive sinonasal tumor; biopsy findings are shown. What immunohistochemical finding would you expect?
(Continued in thread)
#Pathology #PathologyOutlines #Diagnosis
An 18 year old woman presented with a destructive sinonasal tumor; biopsy findings are shown. What immunohistochemical finding would you expect?
(Continued in thread)
#Pathology #PathologyOutlines #Diagnosis
November 11, 2025 at 7:39 PM
Image Quiz!
An 18 year old woman presented with a destructive sinonasal tumor; biopsy findings are shown. What immunohistochemical finding would you expect?
(Continued in thread)
#Pathology #PathologyOutlines #Diagnosis
An 18 year old woman presented with a destructive sinonasal tumor; biopsy findings are shown. What immunohistochemical finding would you expect?
(Continued in thread)
#Pathology #PathologyOutlines #Diagnosis
Have you started your holiday shopping? Our official merchandise shop is having a 20% off sale starting tomorrow, November 11-16! We have new Christmas-themed items and 25th anniversary merch. Our shop is linked in the comments!
#Pathology #PathologyOutlines
#Pathology #PathologyOutlines
November 10, 2025 at 7:08 PM
Have you started your holiday shopping? Our official merchandise shop is having a 20% off sale starting tomorrow, November 11-16! We have new Christmas-themed items and 25th anniversary merch. Our shop is linked in the comments!
#Pathology #PathologyOutlines
#Pathology #PathologyOutlines
Image of the Week!
Submitted by: Busra Yaprak Bayrak, M.D.
Directory Profile: www.pathologyoutlines.com/directory/bu...
Subspecialty: Pulmonary/thoracic
Diagnosis: Pulmonary hamartoma
#Pathology #PathologyOutlines
Submitted by: Busra Yaprak Bayrak, M.D.
Directory Profile: www.pathologyoutlines.com/directory/bu...
Subspecialty: Pulmonary/thoracic
Diagnosis: Pulmonary hamartoma
#Pathology #PathologyOutlines
November 6, 2025 at 7:58 PM
Image of the Week!
Submitted by: Busra Yaprak Bayrak, M.D.
Directory Profile: www.pathologyoutlines.com/directory/bu...
Subspecialty: Pulmonary/thoracic
Diagnosis: Pulmonary hamartoma
#Pathology #PathologyOutlines
Submitted by: Busra Yaprak Bayrak, M.D.
Directory Profile: www.pathologyoutlines.com/directory/bu...
Subspecialty: Pulmonary/thoracic
Diagnosis: Pulmonary hamartoma
#Pathology #PathologyOutlines
Today is International Pathology Day! We celebrate the vital role pathology plays in healthcare and honor the dedicated professionals whose expertise drives accurate diagnoses and improved patient outcomes. Thank you to all in this essential field! 💙🔬
#InternationalPathologyDay #IPD2025 #Pathology
#InternationalPathologyDay #IPD2025 #Pathology
November 5, 2025 at 5:39 PM
Today is International Pathology Day! We celebrate the vital role pathology plays in healthcare and honor the dedicated professionals whose expertise drives accurate diagnoses and improved patient outcomes. Thank you to all in this essential field! 💙🔬
#InternationalPathologyDay #IPD2025 #Pathology
#InternationalPathologyDay #IPD2025 #Pathology
🎉As part of our 25th anniversary celebration, we invite you to share your favorite PathOut photos (conference moments or merch sightings) with us at comments@pathologyoutlines.com. 📸 Selected submissions will be featured at a later date.
#Pathology #PathologyOutlines #PathSky
#Pathology #PathologyOutlines #PathSky
November 3, 2025 at 6:57 PM
🎉As part of our 25th anniversary celebration, we invite you to share your favorite PathOut photos (conference moments or merch sightings) with us at comments@pathologyoutlines.com. 📸 Selected submissions will be featured at a later date.
#Pathology #PathologyOutlines #PathSky
#Pathology #PathologyOutlines #PathSky
Join us on Nov. 20 (11am ET | 4pm GMT) for a webinar on the integration of PathologyOutlines.com and PathologyMap™, HistoWiz’s digital slide platform. Learn how it enhances access to interactive whole-slide images.
🔗 buff.ly/Z8ltypQ
#Pathology #PathologyOutlines #HistoWiz #PathologyNews #PathSky
🔗 buff.ly/Z8ltypQ
#Pathology #PathologyOutlines #HistoWiz #PathologyNews #PathSky
October 31, 2025 at 4:16 PM
Join us on Nov. 20 (11am ET | 4pm GMT) for a webinar on the integration of PathologyOutlines.com and PathologyMap™, HistoWiz’s digital slide platform. Learn how it enhances access to interactive whole-slide images.
🔗 buff.ly/Z8ltypQ
#Pathology #PathologyOutlines #HistoWiz #PathologyNews #PathSky
🔗 buff.ly/Z8ltypQ
#Pathology #PathologyOutlines #HistoWiz #PathologyNews #PathSky
Image of the Week!
Submitted by: Mahvash Nematollahi, M.D.
Directory Profile: www.pathologyoutlines.com/directory/ma...
Subspecialty: Neuropathology
Diagnosis: Oligodendroglioma
#Pathology #PathologyOutlines #PathSky
Submitted by: Mahvash Nematollahi, M.D.
Directory Profile: www.pathologyoutlines.com/directory/ma...
Subspecialty: Neuropathology
Diagnosis: Oligodendroglioma
#Pathology #PathologyOutlines #PathSky
October 29, 2025 at 6:10 PM
Image of the Week!
Submitted by: Mahvash Nematollahi, M.D.
Directory Profile: www.pathologyoutlines.com/directory/ma...
Subspecialty: Neuropathology
Diagnosis: Oligodendroglioma
#Pathology #PathologyOutlines #PathSky
Submitted by: Mahvash Nematollahi, M.D.
Directory Profile: www.pathologyoutlines.com/directory/ma...
Subspecialty: Neuropathology
Diagnosis: Oligodendroglioma
#Pathology #PathologyOutlines #PathSky
Image Quiz!
An incidental breast lump is noted on screening mammography in an adult woman. Which of the following IHC stains could be used to support the diagnosis?
A. ER, PR and HER2
B. OSCAR and CK903
C. SOX10 and S100
D. STAT6 and CD34
See answer in comments.
#Pathology #PathologyOutlines
An incidental breast lump is noted on screening mammography in an adult woman. Which of the following IHC stains could be used to support the diagnosis?
A. ER, PR and HER2
B. OSCAR and CK903
C. SOX10 and S100
D. STAT6 and CD34
See answer in comments.
#Pathology #PathologyOutlines
October 28, 2025 at 6:27 PM
Image Quiz!
An incidental breast lump is noted on screening mammography in an adult woman. Which of the following IHC stains could be used to support the diagnosis?
A. ER, PR and HER2
B. OSCAR and CK903
C. SOX10 and S100
D. STAT6 and CD34
See answer in comments.
#Pathology #PathologyOutlines
An incidental breast lump is noted on screening mammography in an adult woman. Which of the following IHC stains could be used to support the diagnosis?
A. ER, PR and HER2
B. OSCAR and CK903
C. SOX10 and S100
D. STAT6 and CD34
See answer in comments.
#Pathology #PathologyOutlines
We’re celebrating 25 years of PathologyOutlines.com! Here’s a sneak peek at the kind messages that our booth visitors at ECP and CAP shared. See the full images on our Testimonials page via the link in comments. Thanks to all who took time to write us a note!
#Pathology #PathologyOutlines #PathSky
#Pathology #PathologyOutlines #PathSky
October 27, 2025 at 6:54 PM
We’re celebrating 25 years of PathologyOutlines.com! Here’s a sneak peek at the kind messages that our booth visitors at ECP and CAP shared. See the full images on our Testimonials page via the link in comments. Thanks to all who took time to write us a note!
#Pathology #PathologyOutlines #PathSky
#Pathology #PathologyOutlines #PathSky
Case of the Month: A 2 year old boy presents to his pediatrician with pallor, fatigue and shortness of breath when playing. He lives with his parents and 4 siblings on a dairy farm.
Access the rest of the clinical history and more via the link in comments.
#Pathology #PathologyOutlines #PathSky
Access the rest of the clinical history and more via the link in comments.
#Pathology #PathologyOutlines #PathSky
October 24, 2025 at 6:07 PM
Case of the Month: A 2 year old boy presents to his pediatrician with pallor, fatigue and shortness of breath when playing. He lives with his parents and 4 siblings on a dairy farm.
Access the rest of the clinical history and more via the link in comments.
#Pathology #PathologyOutlines #PathSky
Access the rest of the clinical history and more via the link in comments.
#Pathology #PathologyOutlines #PathSky
Image of the Week!
Submitted by: Nirajan Mainali, M.D.
Directory Profile: www.pathologyoutlines.com/directory/ni...
Subspecialty: Medical renal
Diagnosis: Crescentic glomerulonephritis
#Pathology #PathologyOutlines #PathSky
Submitted by: Nirajan Mainali, M.D.
Directory Profile: www.pathologyoutlines.com/directory/ni...
Subspecialty: Medical renal
Diagnosis: Crescentic glomerulonephritis
#Pathology #PathologyOutlines #PathSky
October 23, 2025 at 8:30 PM
Image of the Week!
Submitted by: Nirajan Mainali, M.D.
Directory Profile: www.pathologyoutlines.com/directory/ni...
Subspecialty: Medical renal
Diagnosis: Crescentic glomerulonephritis
#Pathology #PathologyOutlines #PathSky
Submitted by: Nirajan Mainali, M.D.
Directory Profile: www.pathologyoutlines.com/directory/ni...
Subspecialty: Medical renal
Diagnosis: Crescentic glomerulonephritis
#Pathology #PathologyOutlines #PathSky
Dr. Lott Limbach was recently appointed to our Board of Reviewers for Head & Neck Pathology. Dr. Lott Limbach is an associate professor of pathology at The Ohio State University Wexner Medical Center.
Read More: buff.ly/RyUUjwZ
Our Boards: buff.ly/kOced2i
#Pathology #PathologyOutlines #PathSky
Read More: buff.ly/RyUUjwZ
Our Boards: buff.ly/kOced2i
#Pathology #PathologyOutlines #PathSky
October 21, 2025 at 8:42 PM
Dr. Lott Limbach was recently appointed to our Board of Reviewers for Head & Neck Pathology. Dr. Lott Limbach is an associate professor of pathology at The Ohio State University Wexner Medical Center.
Read More: buff.ly/RyUUjwZ
Our Boards: buff.ly/kOced2i
#Pathology #PathologyOutlines #PathSky
Read More: buff.ly/RyUUjwZ
Our Boards: buff.ly/kOced2i
#Pathology #PathologyOutlines #PathSky
Read the latest Curing Cancer Network newsletter: www.pathologyoutlines.com/ccnnewslette...
Follow CCN on LinkedIn: www.linkedin.com/company/curi...
#Cancer #CancerResearch #CuringCancerNetwork #Pathology #PathSky
Follow CCN on LinkedIn: www.linkedin.com/company/curi...
#Cancer #CancerResearch #CuringCancerNetwork #Pathology #PathSky
October 20, 2025 at 7:33 PM
Read the latest Curing Cancer Network newsletter: www.pathologyoutlines.com/ccnnewslette...
Follow CCN on LinkedIn: www.linkedin.com/company/curi...
#Cancer #CancerResearch #CuringCancerNetwork #Pathology #PathSky
Follow CCN on LinkedIn: www.linkedin.com/company/curi...
#Cancer #CancerResearch #CuringCancerNetwork #Pathology #PathSky
Join us on Nov. 20 (11am ET | 4pm GMT) for a webinar on the integration of PathologyOutlines.com and PathologyMap™, HistoWiz’s digital slide platform. Learn how it enhances access to interactive whole-slide images.
🔗 buff.ly/Z8ltypQ
#Pathology #PathologyOutlines #HistoWiz #PathologyNews #PathSky
🔗 buff.ly/Z8ltypQ
#Pathology #PathologyOutlines #HistoWiz #PathologyNews #PathSky
October 17, 2025 at 5:46 PM
Join us on Nov. 20 (11am ET | 4pm GMT) for a webinar on the integration of PathologyOutlines.com and PathologyMap™, HistoWiz’s digital slide platform. Learn how it enhances access to interactive whole-slide images.
🔗 buff.ly/Z8ltypQ
#Pathology #PathologyOutlines #HistoWiz #PathologyNews #PathSky
🔗 buff.ly/Z8ltypQ
#Pathology #PathologyOutlines #HistoWiz #PathologyNews #PathSky
Image of the Week!
Submitted by: Fathima Seles, M.B.B.S.
Directory Profile: www.pathologyoutlines.com/directory/fa...
Subspecialty: Histopathology
Diagnosis: Trichinosis
#Pathology #PathologyOutlines #PathSky
Submitted by: Fathima Seles, M.B.B.S.
Directory Profile: www.pathologyoutlines.com/directory/fa...
Subspecialty: Histopathology
Diagnosis: Trichinosis
#Pathology #PathologyOutlines #PathSky
October 15, 2025 at 6:17 PM
Image of the Week!
Submitted by: Fathima Seles, M.B.B.S.
Directory Profile: www.pathologyoutlines.com/directory/fa...
Subspecialty: Histopathology
Diagnosis: Trichinosis
#Pathology #PathologyOutlines #PathSky
Submitted by: Fathima Seles, M.B.B.S.
Directory Profile: www.pathologyoutlines.com/directory/fa...
Subspecialty: Histopathology
Diagnosis: Trichinosis
#Pathology #PathologyOutlines #PathSky
Image Quiz!
The tumor shown was resected from the cervical spine of a patient. The tumor cells express S100 and GFAP and are negative for Olig2. The tumor has a central spinal cord location on MRI, and the presence of a cleavage plane is noted. What is the diagnosis?
(Continued in thread)
The tumor shown was resected from the cervical spine of a patient. The tumor cells express S100 and GFAP and are negative for Olig2. The tumor has a central spinal cord location on MRI, and the presence of a cleavage plane is noted. What is the diagnosis?
(Continued in thread)
October 14, 2025 at 6:21 PM
Image Quiz!
The tumor shown was resected from the cervical spine of a patient. The tumor cells express S100 and GFAP and are negative for Olig2. The tumor has a central spinal cord location on MRI, and the presence of a cleavage plane is noted. What is the diagnosis?
(Continued in thread)
The tumor shown was resected from the cervical spine of a patient. The tumor cells express S100 and GFAP and are negative for Olig2. The tumor has a central spinal cord location on MRI, and the presence of a cleavage plane is noted. What is the diagnosis?
(Continued in thread)
Is AI part of your pathology workflow yet?
A. Regularly
B. Occasionally
C. Not yet but intend to utilize
D. No plans to use AI
#Pathology #PathologyOutlines #PathSky
A. Regularly
B. Occasionally
C. Not yet but intend to utilize
D. No plans to use AI
#Pathology #PathologyOutlines #PathSky
October 13, 2025 at 6:48 PM
Is AI part of your pathology workflow yet?
A. Regularly
B. Occasionally
C. Not yet but intend to utilize
D. No plans to use AI
#Pathology #PathologyOutlines #PathSky
A. Regularly
B. Occasionally
C. Not yet but intend to utilize
D. No plans to use AI
#Pathology #PathologyOutlines #PathSky
🌎Our global directory of pathologists now features over 40,000 profiles! Representing more than 130 countries, it also includes every known academic pathologist in the US and Canada.
Pathologists, visit the link in the comments to create or update your profile.
#Pathology #PathologyOutlines
Pathologists, visit the link in the comments to create or update your profile.
#Pathology #PathologyOutlines
October 9, 2025 at 5:19 PM
🌎Our global directory of pathologists now features over 40,000 profiles! Representing more than 130 countries, it also includes every known academic pathologist in the US and Canada.
Pathologists, visit the link in the comments to create or update your profile.
#Pathology #PathologyOutlines
Pathologists, visit the link in the comments to create or update your profile.
#Pathology #PathologyOutlines
Image of the Week!
Submitted by: Lizza D. Paz, M.D.
Directory Profile: buff.ly/kuURKkk
Subspecialty: Hematopathology
Diagnosis: CLL
#Pathology #PathologyOutlines #HemePath #PathSky
Submitted by: Lizza D. Paz, M.D.
Directory Profile: buff.ly/kuURKkk
Subspecialty: Hematopathology
Diagnosis: CLL
#Pathology #PathologyOutlines #HemePath #PathSky
October 8, 2025 at 8:37 PM
Image of the Week!
Submitted by: Lizza D. Paz, M.D.
Directory Profile: buff.ly/kuURKkk
Subspecialty: Hematopathology
Diagnosis: CLL
#Pathology #PathologyOutlines #HemePath #PathSky
Submitted by: Lizza D. Paz, M.D.
Directory Profile: buff.ly/kuURKkk
Subspecialty: Hematopathology
Diagnosis: CLL
#Pathology #PathologyOutlines #HemePath #PathSky
🎉As part of our 25th anniversary celebration, we invite you to share your favorite PathOut photos (conference moments or merch sightings) with us at comments@pathologyoutlines.com. 📸 Selected submissions will be featured at a later date.
#Pathology #PathologyOutlines #PathSky
#Pathology #PathologyOutlines #PathSky
October 7, 2025 at 7:23 PM
🎉As part of our 25th anniversary celebration, we invite you to share your favorite PathOut photos (conference moments or merch sightings) with us at comments@pathologyoutlines.com. 📸 Selected submissions will be featured at a later date.
#Pathology #PathologyOutlines #PathSky
#Pathology #PathologyOutlines #PathSky
PathologyOutlines.com, founded in August 2001, has begun its 25th year. You can help us plan the next 25 years!
Read our current goals here: pathologyoutlinesblog.wordpress.com/2025/10/01/1...
#Pathology #PathologyOutlines
Read our current goals here: pathologyoutlinesblog.wordpress.com/2025/10/01/1...
#Pathology #PathologyOutlines
October 3, 2025 at 7:32 PM
PathologyOutlines.com, founded in August 2001, has begun its 25th year. You can help us plan the next 25 years!
Read our current goals here: pathologyoutlinesblog.wordpress.com/2025/10/01/1...
#Pathology #PathologyOutlines
Read our current goals here: pathologyoutlinesblog.wordpress.com/2025/10/01/1...
#Pathology #PathologyOutlines
Thanks to all who answered our recent poll!
Out of 759 responses, 53% use PathologyOutlines.com daily, and 33% use it several times a week. That’s ~87% of respondents visiting at least several times a week! We’re honored to be part of your daily workflow. 🔬
#Pathology #PathologyOutlines #PathSky
Out of 759 responses, 53% use PathologyOutlines.com daily, and 33% use it several times a week. That’s ~87% of respondents visiting at least several times a week! We’re honored to be part of your daily workflow. 🔬
#Pathology #PathologyOutlines #PathSky
October 2, 2025 at 5:06 PM
Thanks to all who answered our recent poll!
Out of 759 responses, 53% use PathologyOutlines.com daily, and 33% use it several times a week. That’s ~87% of respondents visiting at least several times a week! We’re honored to be part of your daily workflow. 🔬
#Pathology #PathologyOutlines #PathSky
Out of 759 responses, 53% use PathologyOutlines.com daily, and 33% use it several times a week. That’s ~87% of respondents visiting at least several times a week! We’re honored to be part of your daily workflow. 🔬
#Pathology #PathologyOutlines #PathSky
Image of the Week!
Submitted by: Rebecca Chernock, M.D.
Directory Profile: www.pathologyoutlines.com/directory/re...
Subspecialty: Head & neck
Diagnosis: CMV in a minor salivary gland
#Pathology #PathologyOutlines #ENTPath #PathSky
Submitted by: Rebecca Chernock, M.D.
Directory Profile: www.pathologyoutlines.com/directory/re...
Subspecialty: Head & neck
Diagnosis: CMV in a minor salivary gland
#Pathology #PathologyOutlines #ENTPath #PathSky
October 1, 2025 at 6:04 PM
Image of the Week!
Submitted by: Rebecca Chernock, M.D.
Directory Profile: www.pathologyoutlines.com/directory/re...
Subspecialty: Head & neck
Diagnosis: CMV in a minor salivary gland
#Pathology #PathologyOutlines #ENTPath #PathSky
Submitted by: Rebecca Chernock, M.D.
Directory Profile: www.pathologyoutlines.com/directory/re...
Subspecialty: Head & neck
Diagnosis: CMV in a minor salivary gland
#Pathology #PathologyOutlines #ENTPath #PathSky