PathologyOutlines.com
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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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December 19, 2025 at 6:52 PM
Stay in the loop with PathologyOutlines.com. Subscribe to our blog via the link in the comments!
#Pathology #PathologyOutlines #Blog #PathSky
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Image of the Week!
Contributed by: Ayana Suzuki, Ph.D.
Textbook topic: Thyroid & parathyroid
Diagnosis: Follicular neoplasm, Hürthle cell type
Textbook topic link: buff.ly/e5Eevm8
#Pathology #PathologyOutlines #PathSky
Contributed by: Ayana Suzuki, Ph.D.
Textbook topic: Thyroid & parathyroid
Diagnosis: Follicular neoplasm, Hürthle cell type
Textbook topic link: buff.ly/e5Eevm8
#Pathology #PathologyOutlines #PathSky
December 17, 2025 at 8:48 PM
Image of the Week!
Contributed by: Ayana Suzuki, Ph.D.
Textbook topic: Thyroid & parathyroid
Diagnosis: Follicular neoplasm, Hürthle cell type
Textbook topic link: buff.ly/e5Eevm8
#Pathology #PathologyOutlines #PathSky
Contributed by: Ayana Suzuki, Ph.D.
Textbook topic: Thyroid & parathyroid
Diagnosis: Follicular neoplasm, Hürthle cell type
Textbook topic link: buff.ly/e5Eevm8
#Pathology #PathologyOutlines #PathSky
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December 15, 2025 at 7:58 PM
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#Pathology #PathologyOutlines #YouTube #PathSky
Image Quiz!
A 70 year old man presents with dysphagia and is found to have an esophageal mass. A biopsy of the mass shows the features pictured. No intermediate cells are present. What is the diagnosis?
(Continued in thread)
A 70 year old man presents with dysphagia and is found to have an esophageal mass. A biopsy of the mass shows the features pictured. No intermediate cells are present. What is the diagnosis?
(Continued in thread)
December 12, 2025 at 2:30 PM
Image Quiz!
A 70 year old man presents with dysphagia and is found to have an esophageal mass. A biopsy of the mass shows the features pictured. No intermediate cells are present. What is the diagnosis?
(Continued in thread)
A 70 year old man presents with dysphagia and is found to have an esophageal mass. A biopsy of the mass shows the features pictured. No intermediate cells are present. What is the diagnosis?
(Continued in thread)
Read the latest Curing Cancer Network newsletter: buff.ly/IZlRqrA
Follow CCN on LinkedIn: buff.ly/4HFMoRU
#Cancer #CancerResearch #CuringCancerNetwork #Pathology #PathSky
Follow CCN on LinkedIn: buff.ly/4HFMoRU
#Cancer #CancerResearch #CuringCancerNetwork #Pathology #PathSky
December 11, 2025 at 2:30 PM
Read the latest Curing Cancer Network newsletter: buff.ly/IZlRqrA
Follow CCN on LinkedIn: buff.ly/4HFMoRU
#Cancer #CancerResearch #CuringCancerNetwork #Pathology #PathSky
Follow CCN on LinkedIn: buff.ly/4HFMoRU
#Cancer #CancerResearch #CuringCancerNetwork #Pathology #PathSky
Image of the Week!
Contributed by: Molly Housley Smith, D.M.D
Textbook topic: Oral cavity & oropharynx
Diagnosis: Carcinoma cuniculatum
Textbook topic link: buff.ly/64zNPgo
#Pathology #PathologyOutlines #PathSky
Contributed by: Molly Housley Smith, D.M.D
Textbook topic: Oral cavity & oropharynx
Diagnosis: Carcinoma cuniculatum
Textbook topic link: buff.ly/64zNPgo
#Pathology #PathologyOutlines #PathSky
December 10, 2025 at 5:44 PM
Image of the Week!
Contributed by: Molly Housley Smith, D.M.D
Textbook topic: Oral cavity & oropharynx
Diagnosis: Carcinoma cuniculatum
Textbook topic link: buff.ly/64zNPgo
#Pathology #PathologyOutlines #PathSky
Contributed by: Molly Housley Smith, D.M.D
Textbook topic: Oral cavity & oropharynx
Diagnosis: Carcinoma cuniculatum
Textbook topic link: buff.ly/64zNPgo
#Pathology #PathologyOutlines #PathSky
Have you tried PathOutPal? This new, AI-powered assistant, developed in collaboration with Algoscope, recently launched on our site.
Designed to provide:
🔹Instant diagnostic answers
🔹Stain guidance
🔹Quick, reliable help
👉 Try it on PathologyOutlines.com.
#Pathology #PathologyOutlines #Algoscope
Designed to provide:
🔹Instant diagnostic answers
🔹Stain guidance
🔹Quick, reliable help
👉 Try it on PathologyOutlines.com.
#Pathology #PathologyOutlines #Algoscope
December 8, 2025 at 6:36 PM
Have you tried PathOutPal? This new, AI-powered assistant, developed in collaboration with Algoscope, recently launched on our site.
Designed to provide:
🔹Instant diagnostic answers
🔹Stain guidance
🔹Quick, reliable help
👉 Try it on PathologyOutlines.com.
#Pathology #PathologyOutlines #Algoscope
Designed to provide:
🔹Instant diagnostic answers
🔹Stain guidance
🔹Quick, reliable help
👉 Try it on PathologyOutlines.com.
#Pathology #PathologyOutlines #Algoscope
Our official merchandise shop is having a sale! Get 20% off everything through December 7. We have new Christmas-themed items and 25th anniversary merch.
Link: buff.ly/EgIIsBo
#Pathology #PathologyOutlines #PathSky
Link: buff.ly/EgIIsBo
#Pathology #PathologyOutlines #PathSky
December 5, 2025 at 7:30 PM
Our official merchandise shop is having a sale! Get 20% off everything through December 7. We have new Christmas-themed items and 25th anniversary merch.
Link: buff.ly/EgIIsBo
#Pathology #PathologyOutlines #PathSky
Link: buff.ly/EgIIsBo
#Pathology #PathologyOutlines #PathSky
Website Notice: We apologize for the Cookiebot consent glitch and are actively working on fixing it.
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December 4, 2025 at 7:41 PM
Website Notice: We apologize for the Cookiebot consent glitch and are actively working on fixing it.
#PathologyOutlines
#PathologyOutlines
Image of the Week!
Contributed by: Kyle Devins, M.D.
Textbook topic: Ovary
Diagnosis: Mucinous carcinoma
Textbook topic link: buff.ly/HE4iwSW
#Pathology #PathologyOutlines #PathSky
Contributed by: Kyle Devins, M.D.
Textbook topic: Ovary
Diagnosis: Mucinous carcinoma
Textbook topic link: buff.ly/HE4iwSW
#Pathology #PathologyOutlines #PathSky
December 3, 2025 at 6:43 PM
Image of the Week!
Contributed by: Kyle Devins, M.D.
Textbook topic: Ovary
Diagnosis: Mucinous carcinoma
Textbook topic link: buff.ly/HE4iwSW
#Pathology #PathologyOutlines #PathSky
Contributed by: Kyle Devins, M.D.
Textbook topic: Ovary
Diagnosis: Mucinous carcinoma
Textbook topic link: buff.ly/HE4iwSW
#Pathology #PathologyOutlines #PathSky
If you’re shopping for yourself or a pathologist in your life, our official merchandise shop is having a sale. Get 20% off everything from December 2 through December 7! We have new Christmas-themed items and 25th anniversary merch.
Link: buff.ly/EgIIsBo
#Pathology #PathologyOutlines #PathSky
Link: buff.ly/EgIIsBo
#Pathology #PathologyOutlines #PathSky
December 2, 2025 at 7:53 PM
If you’re shopping for yourself or a pathologist in your life, our official merchandise shop is having a sale. Get 20% off everything from December 2 through December 7! We have new Christmas-themed items and 25th anniversary merch.
Link: buff.ly/EgIIsBo
#Pathology #PathologyOutlines #PathSky
Link: buff.ly/EgIIsBo
#Pathology #PathologyOutlines #PathSky
🎓Help give the gift of opportunity! Consider donating to Detroit College Promise, a nonprofit giving college scholarships to high schoolers in Detroit Public Schools Community District. Founded by Dr. Pernick, it's supported by PathologyOutlines.com & generous donors.
buff.ly/mQnakcd #GivingTuesday
buff.ly/mQnakcd #GivingTuesday
December 2, 2025 at 2:30 PM
🎓Help give the gift of opportunity! Consider donating to Detroit College Promise, a nonprofit giving college scholarships to high schoolers in Detroit Public Schools Community District. Founded by Dr. Pernick, it's supported by PathologyOutlines.com & generous donors.
buff.ly/mQnakcd #GivingTuesday
buff.ly/mQnakcd #GivingTuesday
Have you started your holiday shopping? Our official merchandise shop is having another sale, starting today! Save 30% on orders of $70+ on November 28-30. We have new Christmas-themed items and 25th anniversary merch!
Link: buff.ly/NZRSURg
#Pathology #PathologyOutlines #BlackFriday #PathSky
Link: buff.ly/NZRSURg
#Pathology #PathologyOutlines #BlackFriday #PathSky
November 28, 2025 at 2:02 PM
Have you started your holiday shopping? Our official merchandise shop is having another sale, starting today! Save 30% on orders of $70+ on November 28-30. We have new Christmas-themed items and 25th anniversary merch!
Link: buff.ly/NZRSURg
#Pathology #PathologyOutlines #BlackFriday #PathSky
Link: buff.ly/NZRSURg
#Pathology #PathologyOutlines #BlackFriday #PathSky
Image of the Week!
Contributed by: Kelly Magliocca, D.D.S., M.P.H.
Textbook topic: Mandible & maxilla
Diagnosis: Ameloblastic carcinoma
Textbook topic link: www.pathologyoutlines.com/topic/mandib...
#Pathology #PathologyOutlines #PathSky
Contributed by: Kelly Magliocca, D.D.S., M.P.H.
Textbook topic: Mandible & maxilla
Diagnosis: Ameloblastic carcinoma
Textbook topic link: www.pathologyoutlines.com/topic/mandib...
#Pathology #PathologyOutlines #PathSky
November 26, 2025 at 6:09 PM
Image of the Week!
Contributed by: Kelly Magliocca, D.D.S., M.P.H.
Textbook topic: Mandible & maxilla
Diagnosis: Ameloblastic carcinoma
Textbook topic link: www.pathologyoutlines.com/topic/mandib...
#Pathology #PathologyOutlines #PathSky
Contributed by: Kelly Magliocca, D.D.S., M.P.H.
Textbook topic: Mandible & maxilla
Diagnosis: Ameloblastic carcinoma
Textbook topic link: www.pathologyoutlines.com/topic/mandib...
#Pathology #PathologyOutlines #PathSky
Image Quiz!
Which of the following immunohistochemical stains can be focally positive in PRRX1 rearranged mesenchymal tumor?
A. CD34 and STAT6
B. DOG1 and CD117
C. S100 protein and SOX10
D. SMA and desmin
Answer linked in the comments.
#Pathology #PathologyOutlines #Diagnosis #PathSky
Which of the following immunohistochemical stains can be focally positive in PRRX1 rearranged mesenchymal tumor?
A. CD34 and STAT6
B. DOG1 and CD117
C. S100 protein and SOX10
D. SMA and desmin
Answer linked in the comments.
#Pathology #PathologyOutlines #Diagnosis #PathSky
November 25, 2025 at 6:30 PM
Image Quiz!
Which of the following immunohistochemical stains can be focally positive in PRRX1 rearranged mesenchymal tumor?
A. CD34 and STAT6
B. DOG1 and CD117
C. S100 protein and SOX10
D. SMA and desmin
Answer linked in the comments.
#Pathology #PathologyOutlines #Diagnosis #PathSky
Which of the following immunohistochemical stains can be focally positive in PRRX1 rearranged mesenchymal tumor?
A. CD34 and STAT6
B. DOG1 and CD117
C. S100 protein and SOX10
D. SMA and desmin
Answer linked in the comments.
#Pathology #PathologyOutlines #Diagnosis #PathSky
Curing Cancer Network was created by Dr. Nat Pernick with the goal of substantially reducing cancer deaths by sharing innovative cancer ideas and seeking input from the worldwide pathology and scientific community.
Latest CCN newsletter: buff.ly/mHnNHbT
#Cancer #CuringCancerNetwork #Pathology
Latest CCN newsletter: buff.ly/mHnNHbT
#Cancer #CuringCancerNetwork #Pathology
November 21, 2025 at 5:26 PM
Curing Cancer Network was created by Dr. Nat Pernick with the goal of substantially reducing cancer deaths by sharing innovative cancer ideas and seeking input from the worldwide pathology and scientific community.
Latest CCN newsletter: buff.ly/mHnNHbT
#Cancer #CuringCancerNetwork #Pathology
Latest CCN newsletter: buff.ly/mHnNHbT
#Cancer #CuringCancerNetwork #Pathology
Case of the Month: A 70 year old woman presents with a 6 mm pink keratotic papule with central erosion on the skin of the left paraspinal mid-back. What is your diagnosis?
Follow the link in the comments for the case!
#Pathology #PathologyOutlines #Diagnosis #PathSky
Follow the link in the comments for the case!
#Pathology #PathologyOutlines #Diagnosis #PathSky
November 20, 2025 at 7:59 PM
Case of the Month: A 70 year old woman presents with a 6 mm pink keratotic papule with central erosion on the skin of the left paraspinal mid-back. What is your diagnosis?
Follow the link in the comments for the case!
#Pathology #PathologyOutlines #Diagnosis #PathSky
Follow the link in the comments for the case!
#Pathology #PathologyOutlines #Diagnosis #PathSky
Image of the Week!
Contributed by: Hamzah Rehan, D.O.
Textbook topic: Bone marrow neoplastic
Diagnosis: MDS with mutated TP53
Textbook topic link: www.pathologyoutlines.com/topic/bonema...
#Pathology #PathologyOutlines
Contributed by: Hamzah Rehan, D.O.
Textbook topic: Bone marrow neoplastic
Diagnosis: MDS with mutated TP53
Textbook topic link: www.pathologyoutlines.com/topic/bonema...
#Pathology #PathologyOutlines
November 19, 2025 at 8:08 PM
Image of the Week!
Contributed by: Hamzah Rehan, D.O.
Textbook topic: Bone marrow neoplastic
Diagnosis: MDS with mutated TP53
Textbook topic link: www.pathologyoutlines.com/topic/bonema...
#Pathology #PathologyOutlines
Contributed by: Hamzah Rehan, D.O.
Textbook topic: Bone marrow neoplastic
Diagnosis: MDS with mutated TP53
Textbook topic link: www.pathologyoutlines.com/topic/bonema...
#Pathology #PathologyOutlines
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 18, 2025 at 6:51 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
“My Male Breast Cancer, Parts 4 and 5” by Dr. Nat Pernick
In part 4, Dr. Pernick discusses radiation therapy he received. In part 5, he discusses his experience with Lupron.
Essays: buff.ly/j353xvm
Curing Cancer Network: buff.ly/bUxL5hq
#Cancer #CuringCancerNetwork #Pathology #PathologyOutlines
In part 4, Dr. Pernick discusses radiation therapy he received. In part 5, he discusses his experience with Lupron.
Essays: buff.ly/j353xvm
Curing Cancer Network: buff.ly/bUxL5hq
#Cancer #CuringCancerNetwork #Pathology #PathologyOutlines
November 17, 2025 at 7:37 PM
“My Male Breast Cancer, Parts 4 and 5” by Dr. Nat Pernick
In part 4, Dr. Pernick discusses radiation therapy he received. In part 5, he discusses his experience with Lupron.
Essays: buff.ly/j353xvm
Curing Cancer Network: buff.ly/bUxL5hq
#Cancer #CuringCancerNetwork #Pathology #PathologyOutlines
In part 4, Dr. Pernick discusses radiation therapy he received. In part 5, he discusses his experience with Lupron.
Essays: buff.ly/j353xvm
Curing Cancer Network: buff.ly/bUxL5hq
#Cancer #CuringCancerNetwork #Pathology #PathologyOutlines
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