Takahiro Hashimoto

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Elastofibroma dorsi is a rare, benign, soft tumor located at the inferior pole of the scapula. We report a series of 8 patients (5 women, 3 men), with a mean age of 67 years (range, 44-80 years), and discuss the clinical presentation, diagnosis, and treatment. Six lesions were unilateral, and 2 were bilateral. All patients were referred from other clinics(More)
Sarcomas in the forearm and hand are very rare, accounting for less than 1% of all upper-limb tumors and clinical outcomes after surgery and adjuvant therapies are uncertain. The forearm and hand present specific challenges due to their unique anatomical structures. There is little soft tissue and each compartment is narrow, such important structures exist(More)
BACKGROUND Intraosseous lipoma remains a poorly-characterized tumor. In paticular, the natural course of intracalcaneus lipoma after conservative treatment and the appropriate surgical modalities are still quite controversial. PATIENTS AND METHODS We reviewed six symptomatic patients who underwent curettage of intracalcaneus lipoma followed by grafting of(More)
RATIONALE Grb2-associated binder (Gab) docking proteins, consisting of Gab1, Gab2, and Gab3, have crucial roles in growth factor-dependent signaling. Various proangiogenic growth factors regulate angiogenesis and endothelial function. However, the roles of Gab proteins in angiogenesis remain elusive. OBJECTIVE To elucidate the role of Gab proteins in(More)
Locking of the knee can present with no history of antecedent injury. We identified impingement of intra-articular tumors in 2 cases. Intra-articular tumors are relatively rare. Mechanical symptoms were present in both cases. On physical examination, there was a palpable mass at the medial region of the patellofemoral joint. The interior had been replaced(More)
BACKGROUND Some statins have been reported to suppress the immune system and increase the expression of bone morphogenetic protein-2 gene that plays a pivotal role in bone regeneration. METHODS The effects of cerivastatin on skeletal reconstruction by vascularized bone allograft were investigated in a rat tibia-fibula graft model. After transplantation,(More)
The origin of the peroneal intraneural ganglion and the outcome of treatment are still controversial. We report here three cases with peroneal intraneural ganglion and discuss the appropriate treatment. In our cases, 58-, 62-, and 65-year-old patients were operated on with extraneural decompression and epineurotomy within 4 months after onset of drop foot.(More)
The strategy of limb salvage following surgical resection of skeletal tumor has led to an increased demand for more complex reconstructive options in order to achieve better functional outcomes. Functional neuro-vascularized muscle transfer (FMT) is a beneficial tool for restoring joint movement involving the reconstruction of "movement" in the affected(More)
A 39-year-old woman was diagnosed with myasthenia gravis when she was 8 years old. Although many treatments - such as cholinesterase inhibitors and steroids - had been given to the patient, her condition did not improve sufficiently. As she demonstrated bilateral 3 mm levator function without any eye movement disturbances, bilateral frontalis sling(More)
Although the deltoid muscle has been assumed to be an essential shoulder muscle, the full extent of postoperative functions of the upper extremity following its complete resection due to sarcoma has not been thoroughly investigated. In this study, we review patients who underwent wide resection for sarcoma in the deltoid muscle, followed by functional(More)