Andrew

What is growing on this man's ear? What is the clinical name for it? What pathology entities cause it? Answers: kikoxp.com/posts/2415 #dermpath #Pathology #dermatology #pathologists #pathTwitter #dermtwitter

Intravascular large B-cell lymphoma. Liver, CNB. HE and CD20. #Pathology #Pathologist #HemePath

A very difficult case. One picture, what is going on? #Pathology

Classic Hodgkin lymphoma. Stamp Papanicolaou and HE. #Pathology #Pathologist #Hemepath

HER2-positive gastric adenocarcinoma #Pathology #GIpath #PathTwitter

Help ! Uterine cervix, 35yo. More pics and IHC in comment.. #gynpath #pathology

Wegener's granulomatosis. Nasal cavity, biopsy. HE, MRI (T1-Gd) and endoscopy(nasal cavity).

Classic Peutz-Jeghers polyp of the duodenum. Zones of site-specific mucosa (duodenal) are separated by cords of smooth muscle. Although WHO requires 3+ polyps to confirm, it should probably be considered if even a single polyp is observed. From @TheUSCAP honoree @LizMontgomeryMD

Esophageal adenocarcinoma (Diagnostic criteria in Japan) arose in Ce of esophagus, most likely ectopic gastric mucosa origin. Esophagus, biopsy. #pathology #pathologist #GIpath

Solar keratosis, bowenoid type. Skin of forehead, resection #pathologist #pathology #dermpath

65 yrs old man with swelling in calf. A nice undifferentiated pleomorphic sarcoma (formerly Giant cell MFH) with osteoclast-type giant cells and metaplastic bone formation. #Pathology #sarcoma #MFH #UPS

Gastric mass: poorly cohesive carcinoma - signet ring cell (PCC-SRC) 💍 #Pathology #PathTwitter #GIpath

Oligodendroglioma, IDH-mutant and 1p/19q co-deleted. #Pathology #Pathologist #Neuropath

🚨 Extra-nodal Rosai-Dorfman disease! Mixed classic and sarcoma-like spindle morphology 🔼 plasma cells as in nodes Not obvious emperipolesis DDx: IMT, Ganglioneuroma, Rhabdo Loc: Bone > Soft tissue > skin Surgery = cure for iso. involvement ref: 26803323 #pedipath #bstpath

A visually arresting classic example presented this morning at #MitrosConference. Too pretty not to share . . .

Incidental finding on nephrectomy for ccRCC. What do you think? #GUpath 🔬

@yro854 I found an area on the glass film that is consistent with the size of CT, all of which are composed of smooth muscle and collagen. At the same time, I found a document. …rdiothoracicsurgery.biomedcentral.com/articles/10.11…

@Andy_pathology I don’t think that the nodular lesion seen in CT was sampled.

Lung tumor.@yro854

Virilization workup reveals ovarian mass. Case by Dr. Frank Ingram @Chucktowndoc. Diagnosis? Possible mutations? More pics & Answers: kikoxp.com/posts/17915 More cases from Dr. Ingram on his Kiko profile: kikoxp.com/frank_ingram3 #GYNpath #pathology #pathTwitter #OBGYNTwitter

Neurofibroma. Skin, biopsy. #Pathology #Pathologist #Dermpath

@Andy_pathology My guess is that CD34 is marking capillary endothelial cells, which when compressed together in an area of atelectasis can give the impression of positive staining of a mass lesion. May we see an image of that stain?