PathologyOutlines.com
@pathologyoutlines.bsky.social
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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.
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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
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
(Image Quiz, Continued)

A. Astrocytoma, IDH mutant
B. Myxopapillary ependymoma
C. Schwannoma
D. Spinal ependymoma

Answer linked in the comments.

#Pathology #PathologyOutlines #Diagnosis #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)
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
🌎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
Image of the Week!

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 [email protected]. 📸 Selected submissions will be featured at a later date.

#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
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
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
(Image Quiz, Continued)

A. Consistently negative for CD117
B. Diffusely positive for CD117 and CK7 and consistently negative for vimentin
C. Diffusely positive for GATA3
D. Positive for CAIX, vimentin and CD10
E. Positive for CK20 more than CK7

Answer linked in the comments.
Image Quiz!

The image shown is from a renal tumor. Which of the following statements is true about the immunohistochemical profile of the tumor type shown?

(Continued in thread)

#Pathology #PathologyOutlines #Diagnosis
September 2025 Issue: “What’s New in Hematopathology 2025: Myeloid Neoplasms in the WHO 5th Edition and ICC” by Barina Aqil, M.D.

Webpage: buff.ly/b8vEGAH
PDF: buff.ly/CYhQ1tZ

Access archives or sign up for future issues via email: buff.ly/LZ5MfeS

#Pathology #PathologyOutlines #PathSky #HemePath
🎉As part of our 25th anniversary celebration, we invite you to share your favorite PathOut photos (conference moments or merch sightings) with us at [email protected]. 📸 Selected submissions will be featured at a later date.

#Pathology #PathologyOutlines #PathSky
Image of the Week!

Submitted by: Doaa Atwi, M.D.
Directory Profile: buff.ly/3mO0lgu
Subspecialty: Gyn
Diagnosis: Dedifferentiated carcinoma of the ovary

#Pathology #PathologyOutlines #Gynpath #PathSky
Have you read the latest Curing Cancer Network newsletter? See it here: buff.ly/QW4FDYI

Follow CCN on LinkedIn: buff.ly/PfzUbcN

#Cancer #CancerResearch #CuringCancerNetwork #Pathology #PathSky
🎉As PathologyOutlines.com begins its 25th year, we’re starting a year-long celebration. We want you to be part of it!

Have questions for our founder, Dr. Nat Pernick? Now’s your chance to ask!

💬 Comment with your question. He’ll answer a selection later this year!

#Pathology #PathologyOutlines
Check out the rest of our photos from ECP 2025 and CAP25 on our Facebook, Instagram, or LinkedIn profiles!

Facebook: www.facebook.com/pathologyout...
Instagram: www.instagram.com/pathoutlines/
LinkedIn: www.linkedin.com/company/path...

#Pathology #PathologyOutlines #ECP2025 #CAP25
Case of the Month: A 67 year old man with a history of chronic obstructive pulmonary disease, prediabetes and abdominal imaging consistent with cirrhosis underwent a non-targeted liver biopsy. What's your diagnosis?

See link in comments for the case!

#Pathology #PathologyOutlines #Diagnosis
Image of the Week!

Submitted by: Nicolò Vianini, M.D.
Directory Profile: www.pathologyoutlines.com/directory/ni...
Subspecialty: GU
Diagnosis: Renal oncocytoma

#Pathology #PathologyOutlines #PathSky