Hemodynamics in the esophageal mucosa of 70 patients with abnormal sensation in the esophagus was examined by reflex-photoelectric plethysmograph using cadmium sulfide (Cd S) cell as transducer.
Patterns of volume pulse wave obtained were divided into 5 groups according to variation of base line, property and form of wave. In the esophageal mucosa, dicrotic wave was most frequently observed. There was a certain relationship between volume pulse wave and aging. The pulse waves in patients with esophagitis, cancer of the esophagus and achalasia were also recorded and abnormal change of hemodynamics was suspected. As a result of these, the esophageal mucosa was stongly effected by heart rate and respiration and was very sensitive to aging and diseases.

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A 53-year-old man complained of sudden dyspnea and laryngeal pain. Laryngeal examination revealed a large movable walnut-sized tumor in the supra glottic space of the larynx. The tumor was removed through the direct laryngoscopy under general anesthesia. Histological examination showed that the tumor was made up of a well circumscribed, circular mass of smooth muscle proliferating around the many vessels, that is the angiomyoma (vascular leiomyoma).

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Sixty-eight year old man, came to our hospital with complaint of a swallowing disturbance and foreign body or compression sensation within his chest. The symptoms had been present for 8 monthes prior to his first visit to our clinic. An approximately 8cm defect was identified radiographically near the second narrowed part of the esophagus. During esophagography, a bronchogram was inadvertenly performed. A bronchography, however, the fistula could not be identified. About 30cm distal to maxillary incisors, multiple tumors were observed protruding from the internal surface of the esophagus using the fiberoptic esophagoscope. There was a grey white debris with slight spontaneous bleeding of the surface of several polyps. Histopathologic diagnosis by biopsy at that time was the epidermoid cell carcinoma.
Using the fiberoptic bronchoscopy, slight stenosis of the trachea and the left main stembronchus was observed near the carina, secondary to compression by the paratracheal and parabronchial lymphonodes. Slight hypermia also present at this site. Near theorifices of the left upper bronchi, there was a moderate amount of localized foarmy

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