Difference between revisions of "Hobnail pattern"

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[[Image:Epithelioid_angiosarcoma_-_very_high_mag.jpg |thumb|right|250px| Hobnail pattern (epithelioid angiosarcoma). (WC/Nephron)]]
{{NoImageNotes|[[Image:Epithelioid_angiosarcoma_-_very_high_mag.jpg |thumb|right|250px| Hobnail pattern ([[epithelioid angiosarcoma]]). [[H&E stain]]. (WC/Nephron)]]}}
'''Hobnail pattern''' is a [[morphologic pattern]] that is seen in a number of contexts.
[[Image:Lactational change - very high mag.jpg|thumb|right|250px|Hobnail pattern ([[lactational changes]]). [[H&E stain]]. (WC/Nephron)]]
[[Image:Nephrogenic adenoma - very high mag.jpg|thumb|right|250px|Hobnail pattern ([[nephrogenic adenoma]]). [[H&E stain]]. (WC/Nephron)]]
'''Hobnail pattern''' is a [[morphologic pattern]] that is seen in a number of contexts, including benign and [[malignant]].


==Definition==
==Definition==
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Other:
Other:
*[[Angiosarcoma]].
*[[Angiosarcoma]].
*Endothelial cells in [[granulation tissue]].
*Reactive endothelial cells in [[granulation tissue]].
*[[Kimura disease]].
*[[Kimura disease]].



Latest revision as of 13:46, 25 February 2016

Hobnail pattern (epithelioid angiosarcoma). H&E stain. (WC/Nephron)
Hobnail pattern (lactational changes). H&E stain. (WC/Nephron)
Hobnail pattern (nephrogenic adenoma). H&E stain. (WC/Nephron)

Hobnail pattern is a morphologic pattern that is seen in a number of contexts, including benign and malignant.

Definition

  • Basement membrane area < area exposed to luminal surface.

Some considerations

Lung:

Breast:

Gynecology:

Kidney:

Urinary bladder:

Other:

See also

References

  1. Piña-Oviedo, S.; Shen, SS.; Truong, LD.; Ayala, AG.; Ro, JY. (Jun 2013). "Flat pattern of nephrogenic adenoma: previously unrecognized pattern unveiled using PAX2 and PAX8 immunohistochemistry.". Mod Pathol 26 (6): 792-8. doi:10.1038/modpathol.2012.239. PMID 23328975.