PDF(Pubmed)
Abstract：
BACKGROUND: Inflammatory myofibroblastic tumor (IMT) is an uncommon benign myofibroblastic tumor that usually occurs in the lung, mediastinum, abdomen and vulvovaginal region. IMT of the upper arm is exceedingly rare with unknown etiology. Pathology plays a major role in the diagnosis of IMT, and radiological characteristics of the condition are crucial for differential diagnosis.
METHODS: A 62-year-old woman was admitted to our hospital for a complaint of a mass in her left upper limb with progressive numbness in the extremity. Ultrasound examination of the brachial artery (BA) revealed a hypoechoic mass with well-defined borders and a substantial blood flow, and the mass was also shown to be greatly enhanced on computed tomography (CT) and magnetic resonance imaging (MRI).
METHODS: The subsequent histopathological and immunohistochemical studies led to the diagnosis of IMT.
METHODS: The patient was referred for surgery. The soft tissue tumor resection, left median nerve release operation, brachial artery vascular grafting, and arterial anastomosis were performed.
RESULTS: Favorable outcome was observed. The patient recovered well from the procedure and did not experience any further complications or tumor recurrence.
CONCLUSIONS: In this report, we describe a case of IMT of the upper arm with BA involvement. The case expands the differential diagnosis of limb neoplasm and broadens the understanding of its ultrasonic and radiological imaging features. It also serves as a further example of an uncommon region distinct from conventional IMT. Further studies on the etiology and therapeutic strategies are needed.
METHODS: A 62-year-old woman was admitted to our hospital for a complaint of a mass in her left upper limb with progressive numbness in the extremity. Ultrasound examination of the brachial artery (BA) revealed a hypoechoic mass with well-defined borders and a substantial blood flow, and the mass was also shown to be greatly enhanced on computed tomography (CT) and magnetic resonance imaging (MRI).
METHODS: The subsequent histopathological and immunohistochemical studies led to the diagnosis of IMT.
METHODS: The patient was referred for surgery. The soft tissue tumor resection, left median nerve release operation, brachial artery vascular grafting, and arterial anastomosis were performed.
RESULTS: Favorable outcome was observed. The patient recovered well from the procedure and did not experience any further complications or tumor recurrence.
CONCLUSIONS: In this report, we describe a case of IMT of the upper arm with BA involvement. The case expands the differential diagnosis of limb neoplasm and broadens the understanding of its ultrasonic and radiological imaging features. It also serves as a further example of an uncommon region distinct from conventional IMT. Further studies on the etiology and therapeutic strategies are needed.
摘要：
背景：炎性肌纤维母细胞瘤（IMT）是一种罕见的良性肌纤维母细胞瘤，通常发生在肺部，纵隔,腹部和外阴阴道区域。上臂的IMT极为罕见，病因不明。病理学在诊断IMT中起主要感化，和放射学特征对鉴别诊断至关重要。
方法：一名62岁妇女因左上肢肿块伴四肢进行性麻木而入院。肱动脉（BA）的超声检查显示具有明确边界和大量血流的低回声肿块，并且在计算机断层扫描（CT）和磁共振成像（MRI）上也显示肿块大大增强。
方法：随后的组织病理学和免疫组织化学研究导致了IMT的诊断。
方法：患者接受手术治疗。软组织肿瘤切除术，左正中神经松解术,肱动脉血管移植,并进行动脉吻合。
结果：观察到良好的结果。患者从手术中恢复良好，没有任何进一步的并发症或肿瘤复发。
结论：在本报告中，我们描述了一例涉及BA的上臂IMT。该病例扩大了肢体肿瘤的鉴别诊断，并扩大了对其超声和放射学影像学特征的理解。它还用作不同于常规IMT的不常见区域的另一个示例。需要进一步研究病因和治疗策略。
方法：一名62岁妇女因左上肢肿块伴四肢进行性麻木而入院。肱动脉（BA）的超声检查显示具有明确边界和大量血流的低回声肿块，并且在计算机断层扫描（CT）和磁共振成像（MRI）上也显示肿块大大增强。
方法：随后的组织病理学和免疫组织化学研究导致了IMT的诊断。
方法：患者接受手术治疗。软组织肿瘤切除术，左正中神经松解术,肱动脉血管移植,并进行动脉吻合。
结果：观察到良好的结果。患者从手术中恢复良好，没有任何进一步的并发症或肿瘤复发。
结论：在本报告中，我们描述了一例涉及BA的上臂IMT。该病例扩大了肢体肿瘤的鉴别诊断，并扩大了对其超声和放射学影像学特征的理解。它还用作不同于常规IMT的不常见区域的另一个示例。需要进一步研究病因和治疗策略。
