Giant Protruding Nodular Fasciitis of the Anterior Chest Wall Clinically Mimicking a Soft Tissue Sarcoma

Nodular fasciitis (NF) is a benign reactive proliferation of myofibroblasts that predominantly occurs subcutaneously. Commonly, it presents as a rapidly growing swelling in 4-8 weeks. NF mostly occurs in adults aged 20-50 years and usually has a diameter<3‐4 cm. Giant NF with a diameter>4 cm i...

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Main Authors: Hideyuki Kinoshita, Tsukasa Yonemoto, Hiroto Kamoda, Yoko Hagiwara, Toshinori Tsukanishi, Sumihisa Orita, Kazuhide Inage, Naoya Hirosawa, Seiji Ohtori, Takeshi Ishii
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Case Reports in Orthopedics
Online Access:http://dx.doi.org/10.1155/2019/4174985
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author Hideyuki Kinoshita
Tsukasa Yonemoto
Hiroto Kamoda
Yoko Hagiwara
Toshinori Tsukanishi
Sumihisa Orita
Kazuhide Inage
Naoya Hirosawa
Seiji Ohtori
Takeshi Ishii
author_facet Hideyuki Kinoshita
Tsukasa Yonemoto
Hiroto Kamoda
Yoko Hagiwara
Toshinori Tsukanishi
Sumihisa Orita
Kazuhide Inage
Naoya Hirosawa
Seiji Ohtori
Takeshi Ishii
author_sort Hideyuki Kinoshita
collection DOAJ
description Nodular fasciitis (NF) is a benign reactive proliferation of myofibroblasts that predominantly occurs subcutaneously. Commonly, it presents as a rapidly growing swelling in 4-8 weeks. NF mostly occurs in adults aged 20-50 years and usually has a diameter<3‐4 cm. Giant NF with a diameter>4 cm is rare. Owing to its rapidly growing nature, a precise clinical diagnosis is difficult; it is frequently misdiagnosed as an aggressive or malignant tumor. Herein, we present the case of a 15-year-old male who presented with a large protruding mass on the anterior chest wall. The tumor appeared clinically malignant as it was protruding and had doubled in size within a few weeks, reaching approximately 8×6 cm. Furthermore, the tumor separated and fell off spontaneously due to its large size. As the remaining tumor continued to grow rapidly, surgery was performed. Following wide tumor resection, no recurrence, metastases, or other complications were noted 1 year postsurgery. NF was diagnosed after pathological evaluation, including immunohistochemical analysis, molecular genetic testing, and cytogenetic testing via fluorescence in situ hybridization analysis. Knowledge of the atypical clinical course and a combination of histopathological examinations are necessary to accurately diagnose NF.
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institution Kabale University
issn 2090-6749
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spelling doaj-art-133594bf969f4b2fb69043d9555245462025-02-03T05:46:36ZengWileyCase Reports in Orthopedics2090-67492090-67572019-01-01201910.1155/2019/41749854174985Giant Protruding Nodular Fasciitis of the Anterior Chest Wall Clinically Mimicking a Soft Tissue SarcomaHideyuki Kinoshita0Tsukasa Yonemoto1Hiroto Kamoda2Yoko Hagiwara3Toshinori Tsukanishi4Sumihisa Orita5Kazuhide Inage6Naoya Hirosawa7Seiji Ohtori8Takeshi Ishii9Department of Orthopedic Surgery, Chiba Cancer Center, 666-2 Nitonacho, Chuo-ku, Chiba 260-8717, JapanDepartment of Orthopedic Surgery, Chiba Cancer Center, 666-2 Nitonacho, Chuo-ku, Chiba 260-8717, JapanDepartment of Orthopedic Surgery, Chiba Cancer Center, 666-2 Nitonacho, Chuo-ku, Chiba 260-8717, JapanDepartment of Orthopedic Surgery, Chiba Cancer Center, 666-2 Nitonacho, Chuo-ku, Chiba 260-8717, JapanDepartment of Orthopedic Surgery, Chiba Cancer Center, 666-2 Nitonacho, Chuo-ku, Chiba 260-8717, JapanDepartment of Orthopedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, JapanDepartment of Orthopedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, JapanDepartment of Orthopedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, JapanDepartment of Orthopedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, JapanDepartment of Orthopedic Surgery, Chiba Cancer Center, 666-2 Nitonacho, Chuo-ku, Chiba 260-8717, JapanNodular fasciitis (NF) is a benign reactive proliferation of myofibroblasts that predominantly occurs subcutaneously. Commonly, it presents as a rapidly growing swelling in 4-8 weeks. NF mostly occurs in adults aged 20-50 years and usually has a diameter<3‐4 cm. Giant NF with a diameter>4 cm is rare. Owing to its rapidly growing nature, a precise clinical diagnosis is difficult; it is frequently misdiagnosed as an aggressive or malignant tumor. Herein, we present the case of a 15-year-old male who presented with a large protruding mass on the anterior chest wall. The tumor appeared clinically malignant as it was protruding and had doubled in size within a few weeks, reaching approximately 8×6 cm. Furthermore, the tumor separated and fell off spontaneously due to its large size. As the remaining tumor continued to grow rapidly, surgery was performed. Following wide tumor resection, no recurrence, metastases, or other complications were noted 1 year postsurgery. NF was diagnosed after pathological evaluation, including immunohistochemical analysis, molecular genetic testing, and cytogenetic testing via fluorescence in situ hybridization analysis. Knowledge of the atypical clinical course and a combination of histopathological examinations are necessary to accurately diagnose NF.http://dx.doi.org/10.1155/2019/4174985
spellingShingle Hideyuki Kinoshita
Tsukasa Yonemoto
Hiroto Kamoda
Yoko Hagiwara
Toshinori Tsukanishi
Sumihisa Orita
Kazuhide Inage
Naoya Hirosawa
Seiji Ohtori
Takeshi Ishii
Giant Protruding Nodular Fasciitis of the Anterior Chest Wall Clinically Mimicking a Soft Tissue Sarcoma
Case Reports in Orthopedics
title Giant Protruding Nodular Fasciitis of the Anterior Chest Wall Clinically Mimicking a Soft Tissue Sarcoma
title_full Giant Protruding Nodular Fasciitis of the Anterior Chest Wall Clinically Mimicking a Soft Tissue Sarcoma
title_fullStr Giant Protruding Nodular Fasciitis of the Anterior Chest Wall Clinically Mimicking a Soft Tissue Sarcoma
title_full_unstemmed Giant Protruding Nodular Fasciitis of the Anterior Chest Wall Clinically Mimicking a Soft Tissue Sarcoma
title_short Giant Protruding Nodular Fasciitis of the Anterior Chest Wall Clinically Mimicking a Soft Tissue Sarcoma
title_sort giant protruding nodular fasciitis of the anterior chest wall clinically mimicking a soft tissue sarcoma
url http://dx.doi.org/10.1155/2019/4174985
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