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Histopathological Findings in the Temporal Bone

Ryusuke Saito, MD; Nobuaki Takata, MD; Noriaki Matsumoto, MD; Ikuo Koide, MD; Akira Fujita, MD; Yoshio Ogura, MD; Motomasa Murakami, MD; Kohsuke Yanagida, MD; Masaru Komazawa, MD

Arch Otolaryngol. 1982;108(8):484-488.

Abstract
• Histopathological findings in the temporal bone are described in a newborn infant, diagnosed as having Potter's syndrome. The infant had severely malformed low-set ears bilaterally and a small lower jaw; autopsy findings showed bilateral renal agenesis and pulmonary hypoplasia. The temporal bone indicated the deformities of the inner ear, classified as Mondini-type, complicated by extensive deformities of the external ear and middle ear, including absence of auditory ossicles, atresia of the oval window, abnormal course of the facial nerve, and hypoplastic external auditory canal. The cochlear membranous labyrinth showed nearly normal form in the upper turn, but severe hypoplasia in the basal turn, which was an unusual cochlear anomaly.

(Arch Otolaryngol 1982;108:484-488)

Author Affiliations
From the Department of Otolaryngology, Okayama University Medical School (Drs Saito, Takata, Matsumoto, Koide, Fujita, and Ogura), and the Departments of Research and Testing (Drs Murakami and Yanagida) and Pediatrics (Dr Komazawa), National Hospital of Okayama, Japan.

Footnotes
Accepted for publication Sept 25, 1981.

Presented at the 25th annual meeting of the Japan Audiological Society, Sendai, Japan, Oct 3, 1980.

Reprint requests to Department of Otolaryngology, Okayama University Medical School, 2-5-1 Shikata-cho, Okayama 700, Japan (Dr Saito).

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