Eric Eunshik Kim MD

Resident in Pathology at Seoul National University Hospital

[Eric Eunshik Kim MD @EricMadPatho]

69M with history of right 2nd finger amputation 3yrs ago. Huge 10cm right axillary LN mets, post palliative dissection. Planning PORT and immunotherapy. Gross and low power of the axillary metastatic melanoma. Last pic of punch biopsy where tumor originated.

[Malke Asaad @malkeasaad]

Here are the list of states that are going to allow IMGs to practice in the USA 🇺🇸 without any U.S. clinical training
Check thread 🧵 below
#match2025

[Gyu Yeong Kim @Rosenrot_Path]

Doctors in SK are in serious condition. Entire medical system, including education and training, is going to deteriorate. Personal resignation was banned and we are forced to get back to work without any permission. I have a right. No one can compel me what to do.
@KOPANA_Path

[Eric Eunshik Kim MD @EricMadPatho]

@JaredAhrendsen @pembeoltulu @neuropathology @TheUSCAP @Pathologists @NU_Pathology @NorthwesternMed @NUFeinbergMed @NMNeurology Hypokalemic periodic paralysis can also look like this, so clinically correlation is needed.

[Eric Eunshik Kim MD @EricMadPatho]

@leon_metlay Yes indeed, it is Ebstein, not Epstein. Thank you!

[Eric Eunshik Kim MD @EricMadPatho]

54/M with Epstein anomaly and severe TR found a 6cm mass in RV by follow-up MRI. Endomyocardial biopsy revealed a cardiac DLBCL, EBV-negative, C-Myc FISH negative. More common in the right atrium. #CVpath #cardiacpath #hemepath #pathtwitter #pathresident

[Eric Eunshik Kim MD @EricMadPatho]

@DrCycloPath Excellent question! While genetics underlying both the anomaly and the cardiac DLBCL is unknown, a study in 1989 by Russell et al (PMID 2925289) shows 4 cases of right-sided tumors coexistant with heart anomalies.

[Charlie Herndon @DrCycloPath]

2⃣🎂👶♂️ Diagnosis?
A) Myxoid liposarcoma
B) Lipoblastoma-like tumor
C) Lipoblastoma
#PathResidents #PediPath #BSTPath #DermPath #PathTwitter
🔬https://t.co/31UJR0ZUFV

[Eric Eunshik Kim MD @EricMadPatho]

38/F right flank 2cm mass with paresthesia upon touch. History of liposuction through that area 2 years ago. Gross: yellow, finely granular. Perineural infiltration of granular cells, positive for S-100. Granular cell tumor. #BSTPath #PathX #pathresidents #Pathtwitter

[Eric Eunshik Kim MD @EricMadPatho]

54/M Below knee amputation after OSTEOSARCOMA, recurrent post-wide excision and adjuvant chemotherapy. Infiltrative evil-looking cells with atypical mitoses. #pathresident #pathX #sarcoma

[Eric Eunshik Kim MD @EricMadPatho]

64/M proximal gastrectomy. Gastric carcinoma with lymphoid stroma (GCLS), strong EBV positivity illustrated by in situ hybridization. Characteristic ribbon-like architecture near the mucosa. Reason to watch out for lymphoid stomach Bx! #GIpath #pathresidents #PathX

[Eric Eunshik Kim MD @EricMadPatho]

Magic hour for photographers. Just the right time to head home.

[Eric Eunshik Kim MD @EricMadPatho]

58/M stomach wedge resection. Low power looks like lymphoid cuffing, so schwannoma. Easy, right? Well... high power of the "cuff" sure looks spindle. DOG1+ low power and c-KIT(+) high power shows that it's actually GIST. #GIpath #PathX #pathresidents

[Eric Eunshik Kim MD @EricMadPatho]

It's snowing polygonals in Seoul rn!

[Eric Eunshik Kim MD @EricMadPatho]

@DraGarmar @AmarBasharMD @berrios_md @HUCA_Asturias Wonderful case! Did you do a Bcl10 stain?

[Eric Eunshik Kim MD @EricMadPatho]

@DanGrahamMD 4 celestial bodies/ small power field

[Eric Eunshik Kim MD @EricMadPatho]

Stomach submucosal tumors can be differentiated at low power. Lymphoid cuffing suggests schwannoma, while its absence supports GIST (even if parts look like verocay!) #GIpath #pathX #pathology

[Eric Eunshik Kim MD @EricMadPatho]

Beautiful deep green of a GB from a 28 year-old living liver donor. #Pathart #GIpath

[Eric Eunshik Kim MD @EricMadPatho]

Pancreatic ductal adenocarcinoma (PDAC) sure loves perineural invasion. Here's one found in a EUS-guided fine needle aspiration Bx of a 2.2 cm mass at the pancreas head. #PathX #GIpath

[Eric Eunshik Kim MD @EricMadPatho]

12/F with T-ALL developed neutropenic fever during CTx. Fever uncontrolled medically, warranting a LULobectomy. DIC illustrated by septic emboli in the lung. Ribbon-like fungal hyphae without septation and orthogonal branching: Mucormycosis. #PulmPath #crittersontwitter #PathBugs