Pyloric stenosis differential diagnosis

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Mohamadmostafa Jahansouz M.D.[2]

Overview

Diseases like gastroentritis ,urinary tract infections ,pyelonephritis ,adrenal insufficiency ,acute renal failure and inborn errors of metabolism are

Differentiating pyloric stenosis from other diseases

• Adrenal insufficiency
• Gastroenteritis
• Inborn errors of metabolism
• Urinary tract infections and Pyelonephritis
• Acute renal failure

• Infantile hypertrophic pyloric stenosis must be differentiated from other diseases that cause vomiting, Poor feeding, and dehydration, such as infantile adrenal insufficiency , [differential dx2], and [differential dx3].
• [Disease name] must be differentiated from [[differential dx1], [differential dx2], and [differential dx3].

• As [disease name] manifests in a variety of clinical forms, differentiation must be established in accordance with the particular subtype. [Subtype name 1] must be differentiated from other diseases that cause [clinical feature 1], such as [differential dx1] and [differential dx2]. In contrast, [subtype name 2] must be differentiated from other diseases that cause [clinical feature 2], such as [differential dx3] and [differential dx4].

Preferred Table

Diseases	Laboratory Findings
	Dehydration	Hypokalemia	Alkalosis	Hypochloremia
Pyloric stenosis	++	+	+	+
Adrenal insufficency	+	Hyperkalemia	Acidosis	+
Gastroenteritis	++	+	Acidosis	+
UTI	+-	+-	+-	+-
Acute renal failure	+	Hyperkalemia	Acidosis	hyperchloremia

Use if the above table can not be made

Differential Diagnosis	Similar Features	Differentiating Features
Differential 1	On [physical exam; history; diagnostic test; imaging], [Differential 1] {has; demonstrates} [feature 1], [feature 2], [feature 3] also observed in [disease name].	On [physical exam; history; diagnostic test; imaging], [Differential 1] {has; demonstrates} [feature 1], [feature 2], [feature 3] that distinguish it from [disease name].
Differential 2	On [physical exam; history; diagnostic test; imaging], [Differential 1] {has; demonstrates} [feature 1], [feature 2], [feature 3] also observed in [disease name].	On [physical exam; history; diagnostic test; imaging], [Differential 1] {has; demonstrates} [feature 1], [feature 2], [feature 3] that distinguish it from [disease name].
Differential 3	On [physical exam; history; diagnostic test; imaging], [Differential 1] {has; demonstrates} [feature 1], [feature 2], [feature 3] also observed in [disease name].	On [physical exam; history; diagnostic test; imaging], [Differential 1] {has; demonstrates} [feature 1], [feature 2], [feature 3] that distinguish it from [disease name].
Differential 4	On [physical exam; history; diagnostic test; imaging], [Differential 1] {has; demonstrates} [feature 1], [feature 2], [feature 3] also observed in [disease name].	On [physical exam; history; diagnostic test; imaging], [Differential 1] {has; demonstrates} [feature 1], [feature 2], [feature 3] that distinguish it from [disease name].
Differential 5	On [physical exam; history; diagnostic test; imaging], [Differential 1] {has; demonstrates} [feature 1], [feature 2], [feature 3] also observed in [disease name].	On [physical exam; history; diagnostic test; imaging], [Differential 1] {has; demonstrates} [feature 1], [feature 2], [feature 3] that distinguish it from [disease name].