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Difference between revisions of "Gastrointestinal tract polyps"
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Gastrointestinal tract polyps (view source)
Revision as of 16:57, 18 March 2011
, 16:57, 18 March 2011→Tabular comparison of colonic polyps: tweak
m (→Tabular comparison of colonic polyps: tweak) |
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| Line 93: | Line 93: | ||
| Hyperplastic polyp | | Hyperplastic polyp | ||
| serrated at the surface | | serrated at the surface | ||
| abundant goblet cells, usu. left colon | | abundant goblet cells, usu. left colon; no features of SSA | ||
| common / benign | | common / benign | ||
| may be syndromic | | may be syndromic | ||
| Line 100: | Line 100: | ||
|- | |- | ||
| Traditional adenomas | | Traditional adenomas | ||
| nuclear hyperchromasia & pseudostratification / crowding at the | | nuclear hyperchromasia & pseudostratification / crowding at the luminal aspect, usu. polypoid - on a stalk, usu. left colon | ||
| decreased goblet cells | | decreased goblet cells | ||
| common / premalignant | | common / premalignant | ||
| Line 107: | Line 107: | ||
| [http://commons.wikimedia.org/wiki/File:Tubular_adenoma_2_high_mag.jpg TA - high mag. (WC)], [http://commons.wikimedia.org/wiki/File:Tubular_adenoma_4_low_mag.jpg TA - low mag. (WC)] | | [http://commons.wikimedia.org/wiki/File:Tubular_adenoma_2_high_mag.jpg TA - high mag. (WC)], [http://commons.wikimedia.org/wiki/File:Tubular_adenoma_4_low_mag.jpg TA - low mag. (WC)] | ||
|- | |- | ||
| Sessile serrated adenoma | | Sessile serrated adenoma (SSA) | ||
| basal crypt dilation & serration | | basal crypt dilation & serration | ||
| boot-shaped crypts, horizontal crypts, branching crypts | | boot-shaped crypts, horizontal crypts, branching crypts | ||
| Line 123: | Line 123: | ||
| [http://commons.wikimedia.org/wiki/File:Traditional_serrated_adenoma_low_mag.jpg TSA - low mag. (WC)], [http://commons.wikimedia.org/wiki/File:Traditional_serrated_adenoma_very_high_mag.jpg TSA - high mag. (WC)] | | [http://commons.wikimedia.org/wiki/File:Traditional_serrated_adenoma_low_mag.jpg TSA - low mag. (WC)], [http://commons.wikimedia.org/wiki/File:Traditional_serrated_adenoma_very_high_mag.jpg TSA - high mag. (WC)] | ||
|- | |- | ||
| Juvenile polyp ( | | Juvenile polyp (retention polyp) | ||
| dilated glands, increased lamina propria | | dilated glands, increased lamina propria | ||
| eroded surface (due to trauma), stalk (polypoid) | | eroded surface (due to trauma), stalk (polypoid) | ||