48,830
edits
Line 686: | Line 686: | ||
===Microscopic=== | ===Microscopic=== | ||
Features: | Features: | ||
*Squamous differentiation. | |||
**+/-Intracellular bridges. | |||
**Scant-to-moderate cytoplasm. | |||
*Penetration of basement membrane. | *Penetration of basement membrane. | ||
**May be challenging to determine. | **May be challenging to determine. | ||
Line 697: | Line 700: | ||
*Long rete ridges. | *Long rete ridges. | ||
*Numerous beeds/blobs of epithelial cells that seem unlikely to be rete ridges. | *Numerous beeds/blobs of epithelial cells that seem unlikely to be rete ridges. | ||
*Desmoplastic stroma - increased cellularity, spindle cell morphology. | *[[Desmoplastic stroma]] - increased cellularity, spindle cell morphology. | ||
DDx: | DDx: |
edits