Pizza pie appearance is seen in –
**Core Concept**
The "pizza pie appearance" is a radiological description of the stomach's mucosal pattern, typically seen in gastric outlet obstruction. This appearance is characterized by alternating areas of thickened and thin mucosa, resembling the pattern of a pizza pie.
**Why the Correct Answer is Right**
The "pizza pie appearance" is a result of the chronic partial obstruction of the stomach, leading to a pattern of alternating areas of edematous and atrophic mucosa. This is due to the mucosa's compensatory response to the obstruction, where the edematous areas are thickened and the atrophic areas are thin. The edematous areas are often seen as the "slices" on the pizza pie, while the atrophic areas are the "crust".
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it is not a specific radiological pattern associated with gastric outlet obstruction.
**Option B:** This option is incorrect because it is a description of a different radiological pattern, not related to the "pizza pie appearance".
**Option C:** This option is incorrect because it is a description of a different clinical condition, not associated with gastric outlet obstruction.
**Clinical Pearl / High-Yield Fact**
The "pizza pie appearance" is a classic radiological sign of gastric outlet obstruction, which should prompt further investigation to identify the underlying cause, such as a tumor or stricture.
**Correct Answer: C. Gastric outlet obstruction. Gastric outlet obstruction**