In order to study an etiology of severe inflammation observed on the pharynx and larynx of the man, author prepared multiple sagital sections enbloc of giant specimen, including thetongue, pharynx, larynx, trachea and esophageal introitus. The slides were made of rats, rabbits, cats, dogs, hogs, goats, calves, Japanese monkeys, fetus and men. Microscopic studies were carried out from the standpoint of comparative anatomy. Severe inflammatory reactions of the esophageal introitus were noted most often on the hogs, followed by the men and the monkeys. At the esophageal introitus the calves were found to be effected most in structure. As for the tongue, the inflammatory reactions were the heaviest on the hogs, men and monkeys. Resulted epithelial structural damages at this area were the strongest on the hogs, followedby men and calves with decreasing severity. These findings were discussed and it was presumed that these differences could be partly explained be structual evolution of the hypopharynx and the adjacent tissues of the primates and homo sapiens.
A case was encountered, in which long standing facial nerve paralysis subsided soon after the middle ear operation. The patient, 55 year-old female, developed left sided facial nerve paralysis soon after she was inflicted by acute suppurative otitis media on her left side. The paralysis was known to have annoyed more than 30 years. Author performed left tympanoplasty. During the operation the patient was found to have chronic catarrhalic otitis media with severance of the incostapes joint and small amount of granulation tissue adjacent to the ossicles. Following the operation it happened that the paralysis did disappear and all facial muscles regained their functions. Return of the facial nerve function was presumably explained as follows; otitis media she suffered about 30 years ago progressed from acute suppurative form to chronic developing the severance of the incostapes joint and a part of the facial nerve was exposed from tube resulting in the paralysis as the nerve was caught by the contracting scar and granulation tissues. The fact that the paralysis was cured by the minor procedure might indicate that the traction applied on the facial nerve was not enough to develop severe nerve degeneration.
The favourable or unfavourable effect of tympanoplasty may be decided almost by a pathologic condition of mastoid bone wall covered by skin flap. The author picked the mastoid bone wall on the tympanoplasty, and compared the histo-pathologic condition with the progress of mastoid wound and hearing restoration. The bone walls of 98 cases are investigated histologically, distinguished in two part of periostium and bone substance. The pathologic condition of the periostium showed especially (1) inflamatory change in 78 cases, (2) gland proliferation change in 29 cases, (3) cholesterin granulomatous change in 15 cases, and the condition of the bone substance showed, (1) change of bone structure in 86 cases, (2) change of bone density in 64 cases, (3) fatt degeneration in 31 cases. The cases of strong inflamatory change showed the unfavourable progress of mastoid wound and in 50% the hearing restoration, the cases of mild inflamatory change showed thefavourable progress and the hearing restoration is effectivelly in 75%. The cases of strong gland proliferation change showed the more unfavourable progress than the progress on the strong inflamatory change and the effect of hearing restoration is in 52%. The cholesterin granuloma is investigated in 15 cases and showed the effect of hearing restoration only in 40%, but has not influence on the progress of mastoid wound. The strong change of bone structure showed unfavourably for the progress of mastoid wound and low for hearing restoration. The change of bone density is not influence on the progress of wound, but the strong change showed low the hearing restoration. The fatt deneneration of bone is irrelevant to the prognosis of tympanoplasty. These pathological changes are combined almost with two or three changes, without solitude. Therefore, the author recognized that the summary is not absolutely right, and it's need, further more to observation.