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Image of the Week! Submitted by: Giuseppe Maria Longo, M.D. Directory Profile: https://xmrrwallet.com/cmx.plnkd.in/e5ymaK2N Subspecialty: Neuropathology Diagnosis: Pleomorphic Xanthoastrocytoma (PXA) #Pathology #PathologyOutlines

Case of the Month: A large, deep paraspinal mass was discovered in a 71 year old man during clinical evaluation for hematuria. The mass was biopsied. What is your diagnosis? See link in bio for the case. #Pathology #PathologyOutlines #Diagnosis

Image of the Week! Submitted by: Giovanni A. Molina Paredes, M.D. Directory Profile: https://xmrrwallet.com/cmx.plnkd.in/ehqRsMVg Subspecialty: Medical renal Diagnosis: Pauci-immune complex crescentic glomerulonephritis #Pathology #PathologyOutlines

Image Quiz! A patient presents with abdominal pain and is found to have mural thickening of the colon. Symptoms persist, and the colon is resected. Based on the histologic image, which of the following is the most likely diagnosis? A. Actinomyces infection B. Inflammatory bowel disease C. Schistosoma infection D. Yersinia infection Answer linked in the comments. #Pathology #PathologyOutlines #Diagnosis

Have you found us on r/PathologyOutlines? We hope to see you there! https://xmrrwallet.com/cmx.plnkd.in/evHjNDFr #Pathology #PathologyOutlines #Reddit

Current and former PathologyOutlines.com authors: Changing institutions soon? Switched email addresses recently? To ensure that you continue to receive communications from us, please email authors@pathologyoutlines.com with your updated contact information. #Pathology #PathologyOutlines

Image of the Week! Submitted by: Guru Siddaiah Chapirimath, M.D. (Guru Siddaiah C M) Directory Profile: https://xmrrwallet.com/cmx.plnkd.in/e_er5p5p Subspecialty: Histopathology Diagnosis: Cross-section of appendix showing Enterobius vermicularis infestation #Pathology #PathologyOutlines

Don’t let malignant PEComa fool you. It can mimic other benign and malignant neoplasms and is almost impossible to diagnose based on imaging alone—only histologic and IHC analysis can provide the most accurate means of diagnosis. Learn more at UncoverPEComa.com #pecoma #malignant #IHC #Analysis #Histologic #pathology #diagnosis

My Male Breast Cancer (Part 2), by Dr. Nat Pernick On April 9, 2025, Dr. Pernick underwent a double mastectomy and right sided sentinel node dissection for right sided male breast cancer. This is the second in a series of essays where he shares his experience from a pathologist’s perspective. Access here: https://xmrrwallet.com/cmx.plnkd.in/euikaUDh Follow Curing Cancer Network: https://xmrrwallet.com/cmx.plnkd.in/eKAjKidU #Cancer #BreastCancer #CuringCancerNetwork #Pathology #PathologyOutlines

Image Quiz! A 10 year old girl presented with generalized lymphadenopathy. Bone marrow aspirate was collected as a part of diagnostic workup and is shown in the image. Which of the following immunohistochemical results are suggestive of the diagnosis of NK lymphoblastic lymphoma? A. CD56-, TdT+, CD20+ B. CD56-, TdT-, CD3+ C. CD56+, TdT+, HLA-DR+ D. CD56-, TdT-, MPO+ Answer linked in the comments. #Pathology #PathologyOutlines #Diagnosis