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Intramuscular spindle cell lipoma of the deltoid: a case report

INTRODUCTION: Spindle cell lipoma is an uncommon adipocytic tumor. Intramuscular lesions of this tumor are very rare. In this report, we describe a case of a patient with intramuscular spindle cell lipoma localized in a deltoid. CASE PRESENTATION: A 58-year-old Japanese man visited us because of a s...

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Autores principales: Mizoshiri, Naoki, Shirai, Toshiharu, Terauchi, Ryu, Arai, Yuji, Fujiwara, Hiroyoshi, Konishi, Eiichi, Tsuchiya, Hiroyuki, Kubo, Toshikazu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4340779/
https://www.ncbi.nlm.nih.gov/pubmed/25880875
http://dx.doi.org/10.1186/s13256-014-0509-0
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author Mizoshiri, Naoki
Shirai, Toshiharu
Terauchi, Ryu
Arai, Yuji
Fujiwara, Hiroyoshi
Konishi, Eiichi
Tsuchiya, Hiroyuki
Kubo, Toshikazu
author_facet Mizoshiri, Naoki
Shirai, Toshiharu
Terauchi, Ryu
Arai, Yuji
Fujiwara, Hiroyoshi
Konishi, Eiichi
Tsuchiya, Hiroyuki
Kubo, Toshikazu
author_sort Mizoshiri, Naoki
collection PubMed
description INTRODUCTION: Spindle cell lipoma is an uncommon adipocytic tumor. Intramuscular lesions of this tumor are very rare. In this report, we describe a case of a patient with intramuscular spindle cell lipoma localized in a deltoid. CASE PRESENTATION: A 58-year-old Japanese man visited us because of a soft tissue mass on the lateral aspect of the left shoulder that had been noticed 2 years prior. The spherical tumor, which measured 5cm×4cm, was elastic and firm on palpation and immobile. Magnetic resonance imaging revealed that the lesion was localized in the left deltoid muscle. A needle biopsy was performed to make a histological diagnosis. With a pre-operative diagnosis of intramuscular lipoma, we removed the tumor with the patient under general anesthesia. The tumor was removed with surrounding musculature and fascia. The pathological diagnosis was intramuscular spindle cell lipoma in the left deltoid muscle. CONCLUSIONS: There are several kinds of lipomas. Spindle cell lipoma is a relatively rare variant (1.5% of all adipocytic neoplasms) that is histologically distinct and characterized by the replacement of mature fat by a mixture of mature adipocytes and undifferentiated spindle cells. There are only five other reported cases of intramuscular spindle cell lipoma in the literature, to our knowledge. The case of our patient is very interesting, as to date there have been few reported patients with a diagnosis of an intramuscular spindle cell lipoma in a deltoid. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s13256-014-0509-0) contains supplementary material, which is available to authorized users.
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spelling pubmed-43407792015-02-27 Intramuscular spindle cell lipoma of the deltoid: a case report Mizoshiri, Naoki Shirai, Toshiharu Terauchi, Ryu Arai, Yuji Fujiwara, Hiroyoshi Konishi, Eiichi Tsuchiya, Hiroyuki Kubo, Toshikazu J Med Case Rep Case Report INTRODUCTION: Spindle cell lipoma is an uncommon adipocytic tumor. Intramuscular lesions of this tumor are very rare. In this report, we describe a case of a patient with intramuscular spindle cell lipoma localized in a deltoid. CASE PRESENTATION: A 58-year-old Japanese man visited us because of a soft tissue mass on the lateral aspect of the left shoulder that had been noticed 2 years prior. The spherical tumor, which measured 5cm×4cm, was elastic and firm on palpation and immobile. Magnetic resonance imaging revealed that the lesion was localized in the left deltoid muscle. A needle biopsy was performed to make a histological diagnosis. With a pre-operative diagnosis of intramuscular lipoma, we removed the tumor with the patient under general anesthesia. The tumor was removed with surrounding musculature and fascia. The pathological diagnosis was intramuscular spindle cell lipoma in the left deltoid muscle. CONCLUSIONS: There are several kinds of lipomas. Spindle cell lipoma is a relatively rare variant (1.5% of all adipocytic neoplasms) that is histologically distinct and characterized by the replacement of mature fat by a mixture of mature adipocytes and undifferentiated spindle cells. There are only five other reported cases of intramuscular spindle cell lipoma in the literature, to our knowledge. The case of our patient is very interesting, as to date there have been few reported patients with a diagnosis of an intramuscular spindle cell lipoma in a deltoid. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s13256-014-0509-0) contains supplementary material, which is available to authorized users. BioMed Central 2015-02-19 /pmc/articles/PMC4340779/ /pubmed/25880875 http://dx.doi.org/10.1186/s13256-014-0509-0 Text en © Mizoshiri et al.; licensee BioMed Central. 2015 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Case Report
Mizoshiri, Naoki
Shirai, Toshiharu
Terauchi, Ryu
Arai, Yuji
Fujiwara, Hiroyoshi
Konishi, Eiichi
Tsuchiya, Hiroyuki
Kubo, Toshikazu
Intramuscular spindle cell lipoma of the deltoid: a case report
title Intramuscular spindle cell lipoma of the deltoid: a case report
title_full Intramuscular spindle cell lipoma of the deltoid: a case report
title_fullStr Intramuscular spindle cell lipoma of the deltoid: a case report
title_full_unstemmed Intramuscular spindle cell lipoma of the deltoid: a case report
title_short Intramuscular spindle cell lipoma of the deltoid: a case report
title_sort intramuscular spindle cell lipoma of the deltoid: a case report
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4340779/
https://www.ncbi.nlm.nih.gov/pubmed/25880875
http://dx.doi.org/10.1186/s13256-014-0509-0
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