Virilization workup reveals ovarian mass. Case by Dr. Frank Ingram Frank Ingram, MD. 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

🚨 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

Spindle cell hemangioma: 👉 Young adults, distal extremities 👉 Dermal/SQ nodule(s) 🔬 Solid + vasoformative 🔬 ±Associated thrombosed BV 🔬 Spindle cells may have small vacuoles (lipoblast-like) 🧬 IDH1/2 mutations (germline = Maffucci syndrome) #bstpath #dermpath #pathboards

📸This is a rare special breast cancer in its pure form. We see cell clusters in a micropapillary and tubuloalveolar arrangement in these clear spaces. Unlike papillary lesions, the micropapillae lack fibrovascular cores. #Breastpath

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

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

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

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

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

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

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

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

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 USCAP honoree Elizabeth Montgomery, MD

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

HER2-positive gastric adenocarcinoma #Pathology #GIpath #PathTwitter

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

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

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

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