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Pseudotumor Deltoideus: Touch Me Not Lesion of the Humerus

Pseudotumor deltoideus is a localized region of irregular cortical thickening at the deltoid insertion that causes a diagnostic quandary for radiologists due to its unusual radiological characteristics. It is benign in origin, with the potential to act as a tumor stimulator, and has a variety of ana...

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Autores principales: Chirayath, Michael, Sebastian, Stallon, George, Arun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Cureus 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10174676/
https://www.ncbi.nlm.nih.gov/pubmed/37182088
http://dx.doi.org/10.7759/cureus.37427
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author Chirayath, Michael
Sebastian, Stallon
George, Arun
author_facet Chirayath, Michael
Sebastian, Stallon
George, Arun
author_sort Chirayath, Michael
collection PubMed
description Pseudotumor deltoideus is a localized region of irregular cortical thickening at the deltoid insertion that causes a diagnostic quandary for radiologists due to its unusual radiological characteristics. It is benign in origin, with the potential to act as a tumor stimulator, and has a variety of anatomic variants. The lesions can be characterized on an X-ray by an area of lucency at or around the deltoid tuberosity and a cortical irregularity or nearby eccentric marrow abnormality on computed tomography (CT)/magnetic resonance imaging (MRI). The presence of cortical thickening and lucency at the deltoid insertion are unusual radiological findings that provide a diagnostic challenge. In this article, we provide cases of shoulder pain together with radiological imaging to make this previously underappreciated condition more understandable. Further evaluation with CT/MRI should be performed in all cases of shoulder pain with conventional radiographic findings of cortical thickening and intracortical lucency. The diagnosis of the condition is aided by the presence of elongated lucency on CT and T2 hyperintensity in the cortex of the proximal humerus. The clinical and imaging characteristics are important in the diagnosis of this condition. It must not be confused for infection or malignancy, and a biopsy must never be attempted.
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spelling pubmed-101746762023-05-12 Pseudotumor Deltoideus: Touch Me Not Lesion of the Humerus Chirayath, Michael Sebastian, Stallon George, Arun Cureus Radiology Pseudotumor deltoideus is a localized region of irregular cortical thickening at the deltoid insertion that causes a diagnostic quandary for radiologists due to its unusual radiological characteristics. It is benign in origin, with the potential to act as a tumor stimulator, and has a variety of anatomic variants. The lesions can be characterized on an X-ray by an area of lucency at or around the deltoid tuberosity and a cortical irregularity or nearby eccentric marrow abnormality on computed tomography (CT)/magnetic resonance imaging (MRI). The presence of cortical thickening and lucency at the deltoid insertion are unusual radiological findings that provide a diagnostic challenge. In this article, we provide cases of shoulder pain together with radiological imaging to make this previously underappreciated condition more understandable. Further evaluation with CT/MRI should be performed in all cases of shoulder pain with conventional radiographic findings of cortical thickening and intracortical lucency. The diagnosis of the condition is aided by the presence of elongated lucency on CT and T2 hyperintensity in the cortex of the proximal humerus. The clinical and imaging characteristics are important in the diagnosis of this condition. It must not be confused for infection or malignancy, and a biopsy must never be attempted. Cureus 2023-04-11 /pmc/articles/PMC10174676/ /pubmed/37182088 http://dx.doi.org/10.7759/cureus.37427 Text en Copyright © 2023, Chirayath et al. https://creativecommons.org/licenses/by/3.0/This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Radiology
Chirayath, Michael
Sebastian, Stallon
George, Arun
Pseudotumor Deltoideus: Touch Me Not Lesion of the Humerus
title Pseudotumor Deltoideus: Touch Me Not Lesion of the Humerus
title_full Pseudotumor Deltoideus: Touch Me Not Lesion of the Humerus
title_fullStr Pseudotumor Deltoideus: Touch Me Not Lesion of the Humerus
title_full_unstemmed Pseudotumor Deltoideus: Touch Me Not Lesion of the Humerus
title_short Pseudotumor Deltoideus: Touch Me Not Lesion of the Humerus
title_sort pseudotumor deltoideus: touch me not lesion of the humerus
topic Radiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10174676/
https://www.ncbi.nlm.nih.gov/pubmed/37182088
http://dx.doi.org/10.7759/cureus.37427
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AT georgearun pseudotumordeltoideustouchmenotlesionofthehumerus