Abstract：
:Myoepitheliomas (MEs) are uncommon tumours of the soft tissue with an intermediate biological behaviour and uncertain differentiation. Primary intra-osseous MEs are rare and occur predominantly in the axial and proximal appendicular skeleton in middle-aged patients. The morphological variation of the tumour cells and stromal metaplasia may cause considerable diagnostic confusion, especially when it occurs in an unusual location. A wide panel of immunohistochemical markers is required to exclude other histological mimics. A 37-year-old male presented with a recurrent swelling in the right middle finger for 1-month duration. Radiographic images showed an expansile, lytic, intra-osseous lesion with high signal intensity on T2W fat-suppressed MR images in the proximal phalanx of the right middle finger without cortical breach, highly suggestive of an enchondroma. Histopathology revealed a lobulated tumour comprising of polygonal to spindle cells in groups and cords in a chondromyxoid stroma. No cellular atypia was noted. The tumour cells were immunopositive for epithelial membrane antigen (EMA), p63, S100 and smooth muscle actin (SMA), compatible with the diagnosis of an intraosseous ME. The proximal phalanx of the right middle finger was excised, revealing a similar tumour, and the patient has been on regular follow-up for the last 18 months without any recurrence. Primary intra-osseous MEs are extremely rare, and this is the second reported occurrence in small bones. A differential diagnosis of ME should be kept for enchondroma-like lesions of the bone for proper histopathological assessment and accurate diagnosis. Documentation of such cases and follow-up will enhance our understanding of their clinical course and prognosis.
journal_name
Skeletal Radioljournal_title
Skeletal radiologyauthors
Nambirajan A,Mridha AR,Sharma MC,Panda A,Palaniswamy Adoi
10.1007/s00256-016-2452-1subject
Has Abstractpub_date
2016-10-01 00:00:00pages
1453-8issue
10eissn
0364-2348issn
1432-2161pii
10.1007/s00256-016-2452-1journal_volume
45pub_type
杂志文章abstract：OBJECTIVE:The objective was to retrospectively record the CT and MRI features and healing patterns of acute, incomplete stress fractures of the pars interarticularis. METHOD:The CT scans of 156 adolescents referred with suspected pars interarticularis stress fractures were reviewed. Patients with incomplete (grade 2) ...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-008-0449-0
更新日期：2008-05-01 00:00:00
abstract：OBJECTIVE:Conventional MR sequences are sometimes nonspecific in differentiating benign from pathologic fractures. To address this difficulty, diffusion-weighted images were conjectured to aid in this discrimination with variable results. As each of these studies contained somewhat small numbers of patients, we perform...
journal_title：Skeletal radiology
pub_type： 杂志文章,meta分析
doi：10.1007/s00256-008-0503-y
更新日期：2008-09-01 00:00:00
abstract：:A 2-year-old black boy with focal fibrocartilaginous dysplasia is described with illustrations of the typical radiographic appearances supplemented by computed tomographic and magnetic resonance images. Since this rare condition is self-correcting, diagnosis is important so that surgical intervention and biopsy can be...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/BF02416986
更新日期：1994-07-01 00:00:00
abstract：:Most authorities favor the hypothesis of an acquired etiology of os odontoideum. We present the cases of identical twin sisters with os odontoideum in association with a congenital partial fusion of the posterior elements of the second and third cervical vertebrae, and discuss the implications. We believe that this is...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/BF00209102
更新日期：1993-10-01 00:00:00
abstract：OBJECTIVE:The aim of this study is to exploit the normal nature of peroneal nerve anatomy to identify constant magnetic resonance imaging (MRI) patterns in peroneal intraneural ganglia. DESIGN:This study is designed as a retrospective clinical study. MATERIALS AND METHODS:MR images of 25 patients with peroneal intran...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-008-0545-1
更新日期：2008-12-01 00:00:00
abstract：:Fibroma of the tendon sheath, a rare benign soft tissue tumor that most often occurs in the distal upper extremities (hands and wrist), is exceedingly rare to present as an intraarticular mass. Presented here is the first case in the English literature, to our knowledge, of a fibroma of the tendon sheath arising in th...
journal_title：Skeletal radiology
pub_type： 杂志文章,评审
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更新日期：2014-05-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/BF00348796
更新日期：1984-01-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章,评审
doi：10.1007/s002560050435
更新日期：1998-10-01 00:00:00
abstract：OBJECTIVE:To investigate the accuracy of plain radiographs, and the effect of observer experience, in the assessment of ankle effusions compared with an MRI gold standard. DESIGN AND PATIENTS:Anteroposterior (AP) and lateral radiographs of the ankle of 39 patients were evaluated by four observers, ranging from first-y...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-004-0833-3
更新日期：2004-12-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/BF00349927
更新日期：1987-01-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-021-03713-y
更新日期：2021-01-22 00:00:00
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pub_type： 杂志文章
doi：10.1007/s00256-013-1766-5
更新日期：2014-02-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-016-2358-y
更新日期：2016-06-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/BF02580394
更新日期：1994-11-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/BF00357773
更新日期：1983-01-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/BF00361660
更新日期：1988-01-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-008-0580-y
更新日期：2009-02-01 00:00:00
abstract：:The posterolateral corner (PLC) is a complex functional unit, consisting of several structures, which is responsible for posterolateral stabilization. The PLC is not consistently defined in the literature. However, most descriptions include the popliteal tendon (PT), the lateral collateral ligament (LCL), the popliteo...
journal_title：Skeletal radiology
pub_type： 杂志文章,评审
doi：10.1007/s00256-006-0271-5
更新日期：2007-08-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/BF00355349
更新日期：1985-01-01 00:00:00
abstract：:This review presents a comprehensive illustrated overview of the wide variety of cystic lesions around the knee. The aetiology, clinical presentation, MRI appearances and differential diagnosis are discussed. Bursae include those related to the patella as well as pes anserine, tibial collateral ligament, semimembranos...
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pub_type： 杂志文章,评审
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pub_type： 杂志文章
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更新日期：2020-11-09 00:00:00
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doi：10.1007/s00256-002-0535-7
更新日期：2002-09-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s002560000213
更新日期：2000-06-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/BF00360494
更新日期：1982-01-01 00:00:00
abstract：:Handigodu disease is a new syndrome of familial spondyloepi(meta)physeal dysplasia. It is inherited as an autosomal dominant trait. The disease is prevalent in a localised area of South India. On the basis of detailed clinical, anthropometric and radiological investigations of 234 affected individuals, it has been obs...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：
更新日期：1994-11-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-020-03573-y
更新日期：2021-02-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章,评审
doi：10.1007/s002560000224
更新日期：2000-07-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-020-03621-7
更新日期：2020-09-25 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s002560050535
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-018-3050-1
更新日期：2019-03-01 00:00:00
