Segmental pancreatitis

Changed by Vikas Shah, 18 Jun 2019

Updates to Article Attributes

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Segmental pancreatitis is not a distinct entity in itself but describes an imaging differential.

Clinical presentation

With segmental pancreatitis, a patient presents with clinical pancreatitis (signs, symptoms, laboratory markers), but on imaging, only a portion of the gland appears to have changes related to pancreatitis.

Radiographic features

It is not uncommon for part of the pancreas to be disproportionally affected in acute pancreatitis, but with segmental pancreatitis, parts of the gland are normal-appearing on imaging.

Differential diagnosis

The imaging differential varies depending on whether the involved segment is the head of the pancreas or the tail.

Head

In the head of the pancreas

Tail of pancreas
 should be considered.

TheIn the tail, the most important thing to assess is whether a mass in the pancreas (such as pancreatic adenocarcinoma) is obstructing the duct and causing obstructive pancreatitis in the upstream gland. Similarly, a stone obstructing the pancreatic duct could cause upstream pancreatitis in the tail. Once these are excluded, other possibilities can be considered, such as

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  • -<p><strong>Segmental pancreatitis</strong> is not a distinct entity in itself but describes an imaging differential.</p><h4>Clinical presentation</h4><p>With segmental pancreatitis, a patient presents with clinical <a href="/articles/pancreatitis">pancreatitis</a> (signs, symptoms, laboratory markers), but on imaging, only a portion of the gland appears to have changes related to pancreatitis.</p><h4>Radiographic features</h4><p>It is not uncommon for part of the pancreas to be disproportionally affected in acute pancreatitis, but with segmental pancreatitis, parts of the gland are normal-appearing on imaging.</p><h4>Differential diagnosis</h4><p>The imaging differential varies depending on whether the involved segment is the head of the pancreas or the tail.</p><h5>Head of pancreas</h5><ul><li><a href="/articles/paraduodenal-pancreatitis">paraduodenal pancreatitis / groove pancreatitis</a></li></ul><h5>Tail of pancreas</h5><p>The most important thing to assess is whether a mass in the pancreas (such as <a href="/articles/pancreatic-ductal-adenocarcinoma-2">pancreatic adenocarcinoma</a>) is obstructing the duct and causing obstructive pancreatitis in the upstream gland. Similarly, a stone obstructing the pancreatic duct could cause upstream pancreatitis in the tail. Once these are excluded, other possibilities can be considered, such as</p><ul><li><a href="/articles/autoimmune-pancreatitis">autoimmune pancreatitis</a></li></ul>
  • +<p><strong>Segmental pancreatitis</strong> is not a distinct entity in itself but describes an imaging differential.</p><h4>Clinical presentation</h4><p>With segmental pancreatitis, a patient presents with clinical <a href="/articles/pancreatitis">pancreatitis</a> (signs, symptoms, laboratory markers), but on imaging, only a portion of the gland appears to have changes related to pancreatitis.</p><h4>Radiographic features</h4><p>It is not uncommon for part of the pancreas to be disproportionally affected in acute pancreatitis, but with segmental pancreatitis, parts of the gland are normal-appearing on imaging.</p><h4>Differential diagnosis</h4><p>The imaging differential varies depending on whether the involved segment is the head of the pancreas or the tail.</p><p>In the head of the pancreas, <a href="/articles/paraduodenal-pancreatitis">paraduodenal pancreatitis / groove pancreatitis</a> should be considered.</p><p>In the tail, the most important thing to assess is whether a mass in the pancreas (such as <a href="/articles/pancreatic-ductal-adenocarcinoma-2">pancreatic adenocarcinoma</a>) is obstructing the duct and causing obstructive pancreatitis in the upstream gland. Similarly, a stone obstructing the pancreatic duct could cause upstream pancreatitis in the tail. Once these are excluded, other possibilities can be considered, such as <a href="/articles/autoimmune-pancreatitis">autoimmune pancreatitis</a>.</p>

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