, 4 tweets, 4 min read Read on Twitter
1/3
Opinion appreciated!
▪️52/M, bx labeled “pleural/chest wall” done elsewhere

▪️CT report: consolidation LT upper lobe lung (paramediastinal). Another CT: suprahilar 8cm mass encasing LT upper bronchus.
(Not sure exact location pulm or pleura?)
3pic sets #Pulmpath @AltaherN88
2/3
▪️Prominent storiform pattern.
▪️Cells relatively uniform.
▪️No HPC vascular pattern.
▪️Not blue/fascicular enough for synovial sarc.
▪️Current bx does not include border of the lesion, but a previous core showed infiltration into lung parenchyma.

IHC👇🏼
3/3
IHC:
Positive (patchy):
▪️pan CK
▪️WT1
▪️BCL2
▪️SMA
▪️TLE1 (focal)

Negative:
▪️p63
▪️TTF1
▪️Calretinin
▪️CD34
▪️S100
▪️Desmin
▪️ALK

Pending:
▪️D2-40, CK8/18
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