Insufficiency Fracture in the Para-Acetabulum, with Features Mimicking those of a Malignant Bone Tumor

Para-acetabular insufficiency fractures are rare and exceedingly difficult to diagnose without a high index of suspicion, since the images mimic those of bone tumors. We herein present the case of a 55-year-old woman who suffered from hip pain with subacute onset. She had undergone a hysterectomy-ov...

Full description

Bibliographic Details
Main Authors: Akio Sakamoto, Takuaki Yamamoto, Kazuhiro Tanaka, Shuichi Matsuda, Tatsuya Yoshida, Yukihide Iwamoto
Format: Article
Language:English
Published: SAGE Publishing 2008-01-01
Series:Clinical Medicine Insights: Case Reports
Online Access:https://doi.org/10.4137/CCRep.S803
_version_ 1818477265089986560
author Akio Sakamoto
Takuaki Yamamoto
Kazuhiro Tanaka
Shuichi Matsuda
Tatsuya Yoshida
Yukihide Iwamoto
author_facet Akio Sakamoto
Takuaki Yamamoto
Kazuhiro Tanaka
Shuichi Matsuda
Tatsuya Yoshida
Yukihide Iwamoto
author_sort Akio Sakamoto
collection DOAJ
description Para-acetabular insufficiency fractures are rare and exceedingly difficult to diagnose without a high index of suspicion, since the images mimic those of bone tumors. We herein present the case of a 55-year-old woman who suffered from hip pain with subacute onset. She had undergone a hysterectomy-ovariectomy due to endometriosis when she was 41 years old. Her bone mineral density was normal due to supplemental treatment with female hormones. About 3 months after onset, she was referred to our institute with a diagnosis of pelvic bone tumor. Plain radiographs and computed tomography showed irregular osteosclerosis in the para-acetabulum. Bone scintigraphy demonstrated uptake in the para-acetabulum. Magnetic resonance imaging showed abnormal signal with low-signal intensity on T1-weighted images and high-signal intensity on T2-weighted images throughout the entire hemipelvic bone. Since the pain continued for more than 3 months, open biopsy was undertaken and the lesion was found to be non-neoplastic. Six months after onset, the pain disappeared. The clinical course suggested a diagnosis of insufficiency fracture in the para-acetabulum. Para-acetabular insufficiency fractures should always be considered in cases of hip pain, even in patients with prolonged symptoms.
first_indexed 2024-12-10T09:35:54Z
format Article
id doaj.art-98e76ac2fda3429ba8a5979bc312278c
institution Directory Open Access Journal
issn 1179-5476
language English
last_indexed 2024-12-10T09:35:54Z
publishDate 2008-01-01
publisher SAGE Publishing
record_format Article
series Clinical Medicine Insights: Case Reports
spelling doaj.art-98e76ac2fda3429ba8a5979bc312278c2022-12-22T01:54:12ZengSAGE PublishingClinical Medicine Insights: Case Reports1179-54762008-01-01110.4137/CCRep.S803Insufficiency Fracture in the Para-Acetabulum, with Features Mimicking those of a Malignant Bone TumorAkio Sakamoto0Takuaki Yamamoto1Kazuhiro Tanaka2Shuichi Matsuda3Tatsuya Yoshida4Yukihide Iwamoto5Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.Para-acetabular insufficiency fractures are rare and exceedingly difficult to diagnose without a high index of suspicion, since the images mimic those of bone tumors. We herein present the case of a 55-year-old woman who suffered from hip pain with subacute onset. She had undergone a hysterectomy-ovariectomy due to endometriosis when she was 41 years old. Her bone mineral density was normal due to supplemental treatment with female hormones. About 3 months after onset, she was referred to our institute with a diagnosis of pelvic bone tumor. Plain radiographs and computed tomography showed irregular osteosclerosis in the para-acetabulum. Bone scintigraphy demonstrated uptake in the para-acetabulum. Magnetic resonance imaging showed abnormal signal with low-signal intensity on T1-weighted images and high-signal intensity on T2-weighted images throughout the entire hemipelvic bone. Since the pain continued for more than 3 months, open biopsy was undertaken and the lesion was found to be non-neoplastic. Six months after onset, the pain disappeared. The clinical course suggested a diagnosis of insufficiency fracture in the para-acetabulum. Para-acetabular insufficiency fractures should always be considered in cases of hip pain, even in patients with prolonged symptoms.https://doi.org/10.4137/CCRep.S803
spellingShingle Akio Sakamoto
Takuaki Yamamoto
Kazuhiro Tanaka
Shuichi Matsuda
Tatsuya Yoshida
Yukihide Iwamoto
Insufficiency Fracture in the Para-Acetabulum, with Features Mimicking those of a Malignant Bone Tumor
Clinical Medicine Insights: Case Reports
title Insufficiency Fracture in the Para-Acetabulum, with Features Mimicking those of a Malignant Bone Tumor
title_full Insufficiency Fracture in the Para-Acetabulum, with Features Mimicking those of a Malignant Bone Tumor
title_fullStr Insufficiency Fracture in the Para-Acetabulum, with Features Mimicking those of a Malignant Bone Tumor
title_full_unstemmed Insufficiency Fracture in the Para-Acetabulum, with Features Mimicking those of a Malignant Bone Tumor
title_short Insufficiency Fracture in the Para-Acetabulum, with Features Mimicking those of a Malignant Bone Tumor
title_sort insufficiency fracture in the para acetabulum with features mimicking those of a malignant bone tumor
url https://doi.org/10.4137/CCRep.S803
work_keys_str_mv AT akiosakamoto insufficiencyfractureintheparaacetabulumwithfeaturesmimickingthoseofamalignantbonetumor
AT takuakiyamamoto insufficiencyfractureintheparaacetabulumwithfeaturesmimickingthoseofamalignantbonetumor
AT kazuhirotanaka insufficiencyfractureintheparaacetabulumwithfeaturesmimickingthoseofamalignantbonetumor
AT shuichimatsuda insufficiencyfractureintheparaacetabulumwithfeaturesmimickingthoseofamalignantbonetumor
AT tatsuyayoshida insufficiencyfractureintheparaacetabulumwithfeaturesmimickingthoseofamalignantbonetumor
AT yukihideiwamoto insufficiencyfractureintheparaacetabulumwithfeaturesmimickingthoseofamalignantbonetumor