Urinary bladder wall thickening
Updates to Synonym Attributes
Updates to Article Attributes
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The first consideration in developing a differential diagnosis for bladder wall thickening is to determine whether the bladder is adequately distended. The bladder wall may be thickened if:
- >3 mm when distended
- >5 mm when nondistended.
If the bladder is not distended, then it is difficult to exclude:
- artifact: collapsed bladder
If the bladder wall is adequately distended, then a differential may be developed based on whether the bladder is diffusely thickened or focally thickened:
Diffuse bladder wall thickening
- bladder outlet obstruction
- neurogenic bladder
- infectious cystitis
- cystitis from radiation or chemotherapy
Focal bladder wall thickening
- urothelial cell carcinoma of the bladder (transitional cell carcinoma)
-
artifact: blood products / clot
- will not enhance on postcontrast CT or MRI or show vascularity on colour Doppler
- may be adherent to the bladder wall, like tumor, but clot may have concave borders, unlike tumor
- other bladder neoplasm
- (cystitis): more commonly diffuse than focal, but may mimic neoplasm
- adjacent inflammatory process (e.g. diverticulitis)
-
cystitis cystica and cystitis glandularis
- may mimic bladder cancer, diagnosis warranted
- amyloidosis of the bladder: rare
-<p>The first consideration in developing a differential diagnosis for bladder wall thickening is to determine whether the bladder is adequately distended. The bladder wall may be thickened if:</p><ul>- +<p>The first consideration in developing a <strong>differential diagnosis for bladder wall thickening</strong> is to determine whether the bladder is adequately distended. The bladder wall may be thickened if:</p><ul>
-</ul><p>If the bladder is not distended, then it is difficult to exclude:</p><ul><li>-<strong>artifact</strong>: collapsed bladder</li></ul><p>If the bladder wall is adequately distended, then a differential may be developed based on whether the bladder is diffusely thickened or focally thickened:</p><h5>Diffuse bladder wall thickening</h5><ul>-<li><a title="Bladder outlet obstruction" href="/articles/bladder-outlet-obstruction">bladder outlet obstruction</a></li>-<li><a title="Neurogenic bladders" href="/articles/neurogenic-bladder">neurogenic bladder</a></li>-<li><a title="infectious cystitis" href="/articles/infectious-cystitis">infectious cystitis</a></li>-<li><a title="Cystitis following radiotherapy or chemotherapy" href="/articles/radiation-and-chemotherapy-induced-cystitis">cystitis from radiation or chemotherapy</a></li>- +</ul><p>If the bladder is not distended, then it is difficult to exclude:</p><ul><li>artifact: collapsed bladder</li></ul><p>If the bladder wall is adequately distended, then a differential may be developed based on whether the bladder is diffusely thickened or focally thickened:</p><h5>Diffuse bladder wall thickening</h5><ul>
- +<li><a href="/articles/bladder-outlet-obstruction">bladder outlet obstruction</a></li>
- +<li><a href="/articles/neurogenic-bladder">neurogenic bladder</a></li>
- +<li><a href="/articles/infectious-cystitis">infectious cystitis</a></li>
- +<li><a href="/articles/radiation-and-chemotherapy-induced-cystitis">cystitis from radiation or chemotherapy</a></li>
-<li><a title="Transitional cell carcinoma (TCC)" href="/articles/transitional-cell-carcinoma-of-the-urinary-tract">urothelial cell carcinoma of the bladder (transitional cell carcinoma)</a></li>-<li>-<strong>artifact</strong>: blood products / clot<ul>- +<li><a href="/articles/transitional-cell-carcinoma-of-the-urinary-tract">urothelial cell carcinoma of the bladder (transitional cell carcinoma)</a></li>
- +<li>artifact: blood products / clot<ul>
-<li>adjacent inflammatory process (e.g. diverticulitis)</li>- +<li>adjacent inflammatory process (e.g. <a title="Diverticulitis" href="/articles/diverticulitis">diverticulitis</a>)</li>
-<a title="amyloidosis of the bladder" href="/articles/amyloidosis-of-the-bladder">amyloidosis of the bladder</a>: rare</li>- +<a href="/articles/amyloidosis-of-the-bladder">amyloidosis of the bladder</a>: rare</li>
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