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Treatment of instrumental perforation of esophageal malignancy by transhiatal esophagectomy.

Perforation of esophageal malignancy secondary to instrumentation is an uncommon but catastrophic complication. Esophageal perforation at the site of an obstructing esophageal malignancy precludes simple operative repair and mandates esophageal resection with reestablishment of gastro-intestinal tract continuity. In the past the standard surgical approach has involved transthoracic esophageal resection via thoracotomy. We have successfully treated four patients with perforated esophageal neoplasms by transhiatal esophagectomy and cervical esophagogastrostomy, thus avoiding thoracotomy in high-risk patients. We consider transhiatal esophagectomy an advantageous alternative in the management of selected cases of instrumental esophageal perforation adjacent to an esophageal malignancy.

Adult↗

Primary small-cell carcinoma of the esophagus. Report of 11 cases and review of the literature.

Primary small-cell carcinoma of the esophagus is an uncommon esophageal malignancy. This report details the clinical and pathologic aspects of 11 cases seen at our institution over 20 years, as well as 123 other cases reported in the literature. Small-cell carcinomas of the esophagus show considerable histologic heterogeneity. Neurosecretory granules can be found in the majority of cases and some show evidence of multidifferentiation. Like primary small-cell cancers of the lung, those in the esophagus are highly aggressive, are usually associated with spread at the time of diagnosis, and have a dismal prognosis regardless of treatment. The possible origin of this interesting variety of esophageal neoplasm is also discussed.

Carcinoma, Small Cell↗

Small-cell carcinoma of the esophagus with regression after combination chemotherapy and radiation therapy.

The authors present an unusual case of small-cell carcinoma of the esophagus, which manifested on double-contrast esophagography as an ulcerated submucosal mass. The lesion underwent dramatic regression after combination chemotherapy and radiation therapy, which has occasionally been used as an alternative to surgery in patients with this rare but aggressive esophageal neoplasm.

Antineoplastic Combined Chemotherapy Protocols↗

Computed tomographic staging of esophageal carcinoma: a study on interobserver variation and correlation with pathological findings.

Despite numerous reports on the efficacy of CT in the staging of esophageal carcinoma, no data are available on the reproducibility of the procedure. Three experienced radiologists independently reviewed the CT scans of 35 patients retrospectively. Calculation of interobserver variation was performed using the kappa statistic. The CT findings of each observer were subsequently correlated with the surgical and pathological findings of 17 patients. There was a large interobserver variation concerning involvement of the aorta, pulmonary vessels, vertebral column, stomach and lymph nodes, ranging from poor to excellent agreement. Agreement between observers on extension of the disease to the tracheobronchial tree, pericardium and liver was good or excellent. Agreement between the CT findings of all observers and the surgical findings for invasive growth was poor. CT pathological correlation of the three observers showed sensitivities ranging from 50 to 57%, specificities ranging from 50 to 60% and accuracies ranging from 46 to 71%. It can be concluded from this study that patients with positive CT findings for involvement of the tracheobronchial tree, the pericardium and the liver should be considered unresectable for cure. Negative findings, however, should be interpreted with caution, because involvement of other structures may still be present. Despite optimistic reports on the efficacy of CT in the pretherapy staging of esophageal neoplasms, this modality has its limitations.

Adenocarcinoma↗

Carcinosarcoma of the esophagus--pattern of recurrence.

Carcinosarcoma of the esophagus is a rare malignant neoplasm, predominantly affecting men in their seventh decade of life. While presenting symptoms and anatomic location of squamous cell and carcinosarcoma of the esophagus are similar, the latter often presents as a large intraluminal polypoid mass on barium esophagram. The more favorable prognosis associated with carcinosarcoma versus other esophageal neoplasms has been attributed to early onset of symptoms, resulting in prompt diagnosis, and a lower propensity for tumor invasion. We report the case of an elderly woman presenting with dysphagia who was initially diagnosed with esophageal leyomyosarcoma. Final tumor pathology showed esophageal carcinosarcoma.

Aged↗

[Leiomyomatosis of the esophagus].

A rare case of dysphagia caused by leiomyomatosis of the esophagus is presented. Esophageal leiomyomatosis is triggered by diffuse proliferation of smooth muscle cells in the wall of the entire esophagus. Only 1.0% of all tumors of the esophagus are benign lesions; 0.4% of all esophageal neoplasms are leiomyomas. Only a few cases of leiomyomatosis-a special form of diffuse leiomyomas-have been described so far in the literature. Modern diagnostic imaging techniques such as CT and MR are described in esophageal leiomyomatosis.

Anti-Ulcer Agents↗

Ectopic hyperparathyroidism (pseudohyperparathyroidism) in esophageal malignancy. Report of a case and a review of the literature.

Described here is a patient with esophageal carcinoma who had hypercalcemia, an elevated serum level of parathyroid hormone and normal parathyroid glands. A review of the literature reveals that a total of 25 other patients with ectopic hyperparathyroidism in esophageal malignancy have been described, four of whom had documented elevations of serum parathyroid hormone levels. Esophageal neoplasms should be added to the list of tumors associated with ectopic secretion of parathyroid hormone.

Aged↗

Preventive effect of fermented brown rice and rice bran on N-nitrosomethylbenzylamine-induced esophageal tumorigenesis in rats.

Modifying effect of fermented brown rice by Aspergillus Oryzae (FBRA) during the initiation or post-initiation phase of N-nitrosomethylbenzylamine (NMBA)-induced esophageal tumorigenesis was investigated in rats. Five-week-old male F344 rats were divided into 7 groups, and groups 1-5 were given subcutaneous injections of NMBA (0.5 mg/kg body weight/injection 15 times) for 5 weeks starting at 7 weeks of age. Groups 2 and 4 were fed the diet containing 5 and 10% FBRA during the initiation phase, respectively, whereas groups 3 and 5 were fed these diets during the post-initiation phase. Group 6 was given the diet containing 10% FBRA throughout the experiment, and group 7 was kept on the basal diet alone and served as an untreated control. Incidence and multiplicity of esophageal neoplasms of group 1 (NMBA alone) were 89% and 1.63+/-1.01/rat, respectively. Those of groups 3 (65%, 1.04+/-1.04) and 5 (58%, 0.77+/-0.86) were significantly less than those of group 1. Furthermore, the incidence and multiplicity of esophageal preneoplastic lesions (dysplasia) of group 5 were less than those of group 1. Post-initiation feeding of 10% FBRA significantly decreased BrdU incorporation in the non-lesional esophageal tissues when compared to that of the control. In addition, the analysis of expression levels of phase I enzymes of livers at the termination of experiment showed no clear differences among the groups. These observations indicate for the first time that FBRA inhibits NMBA-induced esophageal tumor development in rats possibly through inhibition of cell proliferation in the post-initiation phase, and suggest that FBRA is a promising dietary agent for prevention of human esophageal cancer.

Administration, Oral↗

Light-induced autofluorescence spectroscopy for the endoscopic detection of esophageal cancer.

BACKGROUND: Any innovative optical system that facilitates the early endoscopic detection of neoplastic change in the GI mucosa has the potential to greatly improve survival and quality of life for patients prone to have GI malignancies develop. The present article describes light-induced autofluorescence spectroscopy with violet-blue excitation light for in vivo diagnosis of cancerous tissue of the esophagus during routine endoscopy. METHODS: One hundred twenty-nine endogenous fluorescence spectra were obtained from normal mucosa and malignant lesions in 9 patients with squamous cell cancer and 4 with adenocarcinoma of the esophagus. Following spectrographic measurements, biopsy specimens were obtained for definitive classification of the spectra. A special light source capable of delivering either white or violet-blue light for excitation of tissue autofluorescence by means of an endoscope was used. Endogenous fluorescence spectra emitted by tissues were detected with a fiberoptic probe and analyzed with a spectrograph. RESULTS: Squamous cell cancer and adenocarcinoma of the esophagus exhibit specific changes in the emitted fluorescence spectra as compared with normal mucosa. Based on the results obtained in earlier studies, malignant and benign spectra were differentiated with the aid of a mathematical algorithm. By using this algorithm, a sensitivity of 97% and specificity of 95% were obtained for the diagnosis of esophageal carcinoma. CONCLUSIONS: Light-induced fluorescence spectroscopy is useful for the endoscopic detection of squamous cell cancer and adenocarcinoma of the esophagus. This spectroscopic study provides a basis for the design of a simplified autofluorescence imaging system for detection of esophageal neoplasms.

Adenocarcinoma↗

[Oral contrast media in the study of the esophagus with magnetic resonance. Proposal of a new preparation].

The major problem in MRI of the esophagus is the lack of a reliable oral contrast agent. To determine the value of Gd-DTPA as an oral contrast medium for the esophagus as a part of phase III clinical trial, 17 patients (10 esophageal neoplasms, 4 neoplasms of the pharyngo-laryngeal tract, 3 Zenker's diverticula) underwent MRI. The oral contrast medium is proposed in a new preparation: 5 cc of oral Gd-DTPA were emulsionated with 30 g of a low-density barium paste for esophageal CT (3% p/v). High signal intensity in the esophageal lumen was observed in all patients and in all sequences. In neoplastic lesions, the c.m. improved the definition of both the level of stenosis and the longitudinal extent of the lesion. In diverticula, the real and the false lumen could be demonstrated. In one patient the exam could not be completed. No adverse reactions were observed.

Administration, Oral↗

[Anesthesia during radical surgery for esophageal cancer].

The paper summarizes the experience with 245 anesthesias made in 1983 to 2002 during operations for malignant esophageal neoplasms and cardioesophageal cancer. The specific features of the perioperative period, monitoring of the function of vital viscera, the technical features of transhiatal esophagectomy, risk factors of postoperative complications and principles of their prevention are considered. The ways of optimizing anesthesiological protection during radical esophageal operations are discussed.

Adult↗

Yttrium-aluminum-garnet laser therapy of esophageal granular cell tumor.

BACKGROUND: Granular cell tumor (GCT) is a rare lesion. Approximately 4% to 6% of these tumors occur in the gastrointestinal tract, one-third of them affecting the esophagus. Almost all GCTs are benign lesions. Approximately 1% to 3% are malignant. Endoscopic ultrasonography (EUS) is a diagnostic support. The best treatment for esophageal GCT is not yet clear, whether surgical excision, periodic observation, endoscopic excision, or yttrium-aluminum-garnet (YAG) laser therapy. METHODS: From November 1992 to December 2000, four patients with GCTs of the esophagus were observed. All the patients underwent EUS evaluation and endoscopic YAG laser therapy of the esophageal neoplasm. At each session, a biopsy at the tumor site was obtained. The treatment was continued until endoscopic and histologic evidence of the tumor disappeared. RESULTS: After the YAG laser therapy, no evidence of the tumor was found in any of the four patients with esophageal GCT. At this writing, the patients remain disease free after a mean follow-up period of 66 months. No complication has been observed. Only four sessions for each patient were necessary to eliminate the tumor. CONCLUSIONS: Therapy with YAG laser was effective in all four patients with esophageal GCT, and complete necrosis of the submucosal neoplastic cells was achieved. Endoscopic YAG laser therapy appears to be a good compromise between esophageal dissection and long-term observation without tumor excision. Esophageal laser therapy is safe if correctly used, and previous EUS evaluation increases treatment safety.

Adult↗

Surgical aspects of the patient with high-grade dysplasia.

The incidence of esophageal cancer has increased dramatically in the Western population in the last 2 decades. In 1975, about three fourths of the esophageal neoplasms were squamous cell carcinomas and the remainder were adenocarcinomas. During the last 2 to 3 decades, this pattern has changed dramatically and the incidence of squamous cell carcinomas has declined while the incidence of adenocarcinomas has increased. The reason for this dramatic increase is not clear, but gastro esophageal reflux disease, obesity and Barrett's esophagus have been identified as risk factors. High grade dysplasia in Barrett's esophagus is a premalignant condition which can progress to invasive adenocarcinoma. In this article, we discuss the natural history of high grade dysplasia (HGD), difficulties in the diagnosis, the incidence of adenocarcinoma in resected specimens and the surgical aspects in the treatment of HGD, including minimally invasive esophagectomy.

Adenocarcinoma↗