Pathoma discrepancy on Rhabdomyoblasts

[loveoforganic2]

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Pathoma text (p. 139, IV. C) says rhabdomyoblasts exhibit positive staining for myogenin; the video says positive staining for myoglobin. This is my 1st pass through the information (haven't gone through it in class yet), so any clarification as to which is the case here would be much appreciated! Wiki says myogenin fwiw, but Dr. Sattar has the text "myoglobin" up and verbally says that, so would love further confirmation one way or another

 

[loveoforganic2]

One more maybe mistake that just came up as well -

Pathoma text (p. 139, V, D) says cancer from lower 2/3 of vagina drains to inguinal nodes and upper 1/3 drains to regional iliac nodes. However, pathoma errata corrects this to say lower 1/3 of vagina drains to inguinal nodes and upper 2/3 drains to regional iliac.

The errata seems to defy the embryology - lower 2/3 is UG sinus derived, upper 1/3 is Mullerian duct derived. Am i missing something here?

 

[Phloston]

One more maybe mistake that just came up as well -

Pathoma text (p. 139, V, D) says cancer from lower 2/3 of vagina drains to inguinal nodes and upper 1/3 drains to regional iliac nodes. However, pathoma errata corrects this to say lower 1/3 of vagina drains to inguinal nodes and upper 2/3 drains to regional iliac.

The errata seems to defy the embryology - lower 2/3 is UG sinus derived, upper 1/3 is Mullerian duct derived. Am i missing something here?

Embryo:

Upper 1/3 vagina = paramesonephric duct-derived

Lower 2/3 = urogenital sinus

Lymph:

Upper 2/3 = women are HOEs = hypogastric, obturator, external iliac (this is even in FA, I believe on p. 530 [not 100% sure on the p. #])

Lower 1/3 = superficial inguinal

 

[loveoforganic2]

Weird that the vaginal lymphatics split point doesn't coincide with embryology, but still happens to be a split of thirds. Thanks for saying FA confirms pathoma's errata.

 

[HSE21]

Embryo:

Upper 1/3 vagina = paramesonephric duct-derived

Lower 2/3 = urogenital sinus

Lymph:

Upper 2/3 = women are HOEs = hypogastric, obturator, external iliac (this is even in FA, I believe on p. 530 [not 100% sure on the p. #])

Lower 1/3 = superficial inguinal

That would not make any sense !
I believe this is true.
Langma : the vaginal fornices are of paramesonephric origin.
Upper 1/3 vagina = paramesonephric duct-derived
Lower 2/3 = urogenital sinus
and the lymph drainage should correspond with the embryological origin of organs.

 

[Checcles]

Embryo:

Upper 1/3 vagina = paramesonephric duct-derived

Lower 2/3 = urogenital sinus

Lymph:

Upper 2/3 = women are HOEs = hypogastric, obturator, external iliac (this is even in FA, I believe on p. 530 [not 100% sure on the p. #])

Lower 1/3 = superficial inguinal

That would not make any sense !
I believe this is true.
Langma : the vaginal fornices are of paramesonephric origin.
Upper 1/3 vagina = paramesonephric duct-derived
Lower 2/3 = urogenital sinus
and the lymph drainage should correspond with the embryological origin of organs.

Did anyone ever come up with the correct answer for this?

PS- the reason that I'm asking isn't because they are going to say "where does the middle 1/3 drain?" but because I want to know if it correlates with embryo or not.