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. 2021 Nov 1;31(4):850-857.
doi: 10.1055/s-0041-1735916. eCollection 2021 Oct.

Tumors of the Acromion Process-A Pictorial Review

S L Boo  1 , A Saad  2 , Z Khan  2 , A M Davies  1 , S L James  1 , R Botchu  1
Affiliations

Tumors of the Acromion Process-A Pictorial Review

S L Boo et al. Indian J Radiol Imaging. .

Abstract

Introduction Acromion is essential for stabilizing the shoulder complex. Tumors of the acromion are rare. We report the largest series of acromion tumor and tumor-like lesion. Materials and Methods A retrospective review of the oncology and radiology database within our tertiary center for orthopaedic oncology was performed to identify all tumors of the acromion over the past 30 years and imaging was reviewed. Results We identified a total of 31 lesions arising in the acromion and chondrosarcoma was the commonest. Conclusion One needs to be aware of tumor and tumor-like lesions of acromion.

Keywords: acromion; process; tumors.

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Conflict of interest statement

Conflict of Interest None declared.

Figures

Fig. 1
Fig. 1
Chondrosarcoma. Anteroposterior radiograph ( a ), computed tomography axial ( b ), sag ( c ), magnetic resonance imaging coronal T1 ( d ), sag T2 ( e ), and axial T1 ( f ) showing chondrosarcoma (arrow).
Fig. 2
Fig. 2
Chondrosarcoma. Anteroposterior radiograph ( a ), magnetic resonance imaging coronal T1 ( b ), and short-tau inversion recovery coronal ( c ) chondrosarcoma (arrow).
Fig. 3
Fig. 3
Chondrosarcoma. Anteroposterior radiograph ( a ), computed tomography sag ( b ), and axial ( c ) showing chondrosarcoma (arrow).
Fig. 4
Fig. 4
Renal metastasis. Anteroposterior radiograph ( a ) and axial computed tomography ( b ) showing renal metastasis (arrow).
Fig. 5
Fig. 5
Breast metastasis. Anteroposterior radiograph ( a ) and positron emission tomography–computed tomography (PET-CT) ( b ) showing left acromial metastasis with increased uptake on PET-CT (arrow).
Fig. 6
Fig. 6
Lung metastasis. Anteroposterior radiograph showing right bronchogenic carcinoma (arrow head) and left acromion metastasis (arrow).
Fig. 7
Fig. 7
Myeloma. Anteroposterior radiograph ( a ), magnetic resonance imaging (MRI) axial T1 ( b ), MRI axial short-tau inversion recovery (STIR) ( c ), and sag STIR ( d ) showing myeloma deposit (arrow).
Fig. 8
Fig. 8
Plasmacytoma. Anteroposterior radiograph ( a ), magnetic resonance imaging sag short-tau inversion recovery ( b ), and axial computed tomography ( c ) showing plasmacytoma (arrow).
Fig. 9
Fig. 9
Lymphoma. Anteroposterior radiograph ( a ) magnetic resonance imaging T1 sag ( b ), and coronal short-tau inversion recovery ( c ) showing lymphoma involving the acromion (arrow).
Fig. 10
Fig. 10
Osteochondroma. Magnetic resonance imaging short-tau inversion recovery (STIR) axial ( a, b ) and sag STIR ( c ) showing osteochondroma (arrow).
Fig. 11
Fig. 11
Fibrous dysplasia. Anteroposterior radiograph ( a ), axial ( b ), and Y view ( c ) showing fibrous dysplasia (arrow).
Fig. 12
Fig. 12
Diagnostic algorithm of acromion tumors.
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