Happy Friday everybody!
Here's a holiday treat shared by @dannyjlubinpath.
Middle aged pt with a sinonasal mass.
What ancillary testing might you pursue to arrive at the correct diagnosis?
50 y/o HIV positive man with a 46 mm anal lesion. Routine H&E of the proctectomy. The squamous epithelium (lower right) is severely dysplastic, and a transition to an invasive SCC is noted.
Multifocal oncocytoma/oncocytosis of parotid.
🔹multiple nodules, some circumscribed and some not.
🔹some can be clear cell rich.
🔹p63 should show an incomplete outer layer around the nests.
But wait…aren’t these supposed to be golden brown grossly? See final pic.
Fear the TERT! 😂 Follicular thyroid carcinomas with TERT promoter mutations exhibit a unique global micro-RNA landscape compared to wildtype cases, including miRs that could explain why TERT promoter mutations confer aggressive tumor biology. Read our latest work in @EndoPath!
8 y/o boy with Cushing's syndrome. Previous lateralization to the left adrenal, displaying "cortical hyperplasia" on histology. Now recurrent hypercortisolism, right-sided adrenalectomy is performed. An irregular cortex with numerous nodules is evident.
Another Warthin tumour with a stowaway…
Since it came up in my previous tweet last week…
Here is an actual acinic cell carcinoma inside a Warthin tumour!
83-y/o female patient with a 30 mm thyroid nodule, FNAC consistent with Bethesda IV. Left-sided lobectomy is performed. A well-demarcated tumor with a defined capsule is seen.
A rare sarcoma worthy of sharing.
Sclerosing epithelioid fibrosarcoma.
MUC4 IHC shown.
First described by my mentor Dr. Meis in 1995. Her more recent study of 51 cases emphasizes its potential for aggressive behavior ➡️ https://t.co/LK9fkUR0Ex
#BSTpath#sarcoma