Publications by authors named "Maw-Chang Sheen"

Introduction: We present a difficult case of huge squamous cell carcinoma (SCC) of lower lip that was successfully treated by intra-arterial infusion with methotrexate (MTX).

Presentation Of Case: This 42-year-old female patient present with a fungating lower lip SCC of approximately 10 × 5 cm in size. MTX 25 mg was infused continuously to each side of external carotid artery every 24 h using two portable pumps.

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Two major issues encountered in the surgical resection of low rectal cancers (tumor located <6 cm from anal verge) are tumor-free surgical resection margin and adequate fields of colo-anal pull-through anastomosis. The clinical consequences of ensuring gross tumor-free surgical resection margin by transanal inside-out rectal resection technique were assessed for ultra-low rectal cancer patients. From February 2009 to September 2011, ultra-low anterior resection with a new method of eversion of the rectum through the anal canal after resecting the distal rectum and colo-anal anastomosis extracorporally performed in 30 patients (age range, 41-80 years) was reviewed.

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Development of an enteric fistula after surgery is a major therapeutic complication. In this study, we retrospectively examined the potential relationship between preoperative laboratory data and patient mortality by collecting patient data from a tertiary medical center. We included patients who developed enteric fistulas after surgery for gastrointestinal (GI) cancer between January 2005 and December 2010.

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Cancer is one of the most common causes of morbidity and mortality. Genes whose products play a critical role in regulation of the immune response include the HLA antigen and cytokine families of genes. Oral cancer is common in men in developing countries, and its frequency is increased by using betel-quid, tobacco, and alcohol.

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Purpose: Traditional treatment for advanced penile verrucous carcinoma is penectomy. This mostly leads to remarkable psychosexual problems and greatly affects quality of life, especially in young patients. To preserve the penis we used intra-aortic infusion chemotherapy for advanced verrucous carcinoma.

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Background: We evaluated the effectiveness of intraarterial methotrexate infusion as a primary therapy for oral verrucous carcinoma (VC).

Methods: Fifteen male patients (mean age, 55 years) were included. By using an implantable port-catheter system and a portable pump, methotrexate was continuously infused to the external carotid artery for a mean period of 7.

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Most lip cancers are usually diagnosed and can be treated with good prognosis at an early stage. This study reports our experience of treating seven, previously untreated, patients with lip cancer in stage I or II using intraarterial infusion chemotherapy with a single agent. They were all males with ages ranging from 37 to 69 years.

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Background: Constitutive activation of signal transducer and activator of transcription 3 at tyrosine residue 705 (p-STAT3 (tyr705)) has been associated with many types of human cancers. However, its potential roles and biological effects in hepatocellular carcinoma (HCC) are not well established.

Aim: To explore whether an altered p-STAT3 (tyr705) expression is associated with angiogenesis or proliferation and thereby plays a part in HCC development.

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Purpose: We investigated the role of candidate tumor suppressor and proapoptotic WOX1 (also named WWOX, FOR, or WWOXv1) in UVB-induced apoptosis and formation of cutaneous squamous cell carcinomas (SCC).

Experimental Design: Expression of WOX1 and family proteins (WWOX) in human primary cutaneous SCCs was examined by immunohistochemistry, in situ hybridization, and reverse transcription-PCR. UVB irradiation-induced WOX1 activation (Tyr33 phosphorylation and nuclear translocation), apoptosis, and cutaneous SCC formation were examined both in vitro and in vivo.

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Background: For preservation of integrity of appearance and function in a 66-year-old male with an extremely rare case of verrucous carcinoma developing from the subungium of his right thumb, intra-arterial infusion with methotrexate was used.

Objective: To evaluate the effectiveness of arterial infusion with methotrexate in this unusual nail bed cancer.

Methods: Right brachial arterial catheterization and infusion with methotrexate (50 mg) were used every 24 hours together with simultaneous intramuscular injection of 6 mg of leucovorin every 6 hours for 10 days.

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Background: For preservation of integrity of appearance and function in a 57-year-old male with a squamous cell carcinoma of his left big toe who had refused amputation, intra-arterial infusion with methotrexate was used.

Objective: To evaluate the effectiveness of arterial infusion with methotrexate in this uncommon big toe cancer.

Methods: Left external iliac arterial catheterization and infusion with methotrexate (50 mg) were used every 24 hours plus simultaneous intramuscular injection of 6 mg of leucovorin every 6 hours for 8 days.

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Objectives: Penile verrucous carcinoma is characterized by aggressive local growth and a low metastatic potential. Lower abdominal aortic infusion chemotherapy has the main advantage of delivering a very high concentration of an anticancer drug to the whole pelvic area, including the penis, and is especially suitable to treat penile verrucous carcinoma.

Methods: From 1991 to 2000, 4 cases of penile verrucous carcinoma were treated by continuous intra-aortic infusion with methotrexate (50 mg) every 24 hours, for an average of 10 days.

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We describe a 65-year-old man who had undergone choledochoduodenostomy (CDS) for choledocholithiasis 25 years prior to admission to our hospital for cholangitis. Abdominal sonography and computerized tomography (CT) scan revealed a tumor mass at the hilar region with bilateral intrahepatic duct dilatation. Upper gastrointestinal endoscopic examination indicated the site of the CDS.

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