Scalded skin syndrome mechanism of action - Uworld/FA contradiction?

[theWUbear]

According to first aid, staphylococcal exotoxins that cause scalded skin syndrome "destroy keratinic attachments in stratum granulosum only".

A UWorld explanation states that the exotoxins act as a protease and cleave desmoglein in desmosomes.

Both FA and Pathoma teach that desmosomes are in the stratum spinosum layer. Therefore, UWorld is stating that the exotoxins work at the stratum spinosum layer, while first aid says they work at the granulosum layer.

Is there a way to remedy this?

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[Phloston]

Desmosomes aren't limited to the spinosum. The line of cleavage for the toxin is in the granulosom according to this textbook.

https://books.google.com.au/books?id=4HdJ1t6NOIcC&pg=PA134&lpg=PA134&dq=granulosum desmosomes&source=bl&ots=TNa_TjCGa9&sig=9IHl6VZmXAKzf4Vlmu76GdiW0go&hl=en&sa=X&ei=vYVAVdfGLeKxmwWGvoGACQ&ved=0CDcQ6AEwBA#v=onepage&q=granulosum desmosomes&f=false

Regardless, this is the absolute last thing I would recommend you lose sleep over.