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Article
November 1969

Cricoid Cartilage Abnormalities

Author Affiliations

Warwickshire, England
From the Ear, Nose, and Throat Department, Warwick Hospital, Warwickshire, England.

Arch Otolaryngol. 1969;90(5):634-635. doi:10.1001/archotol.1969.00770030636020
Abstract

DEVELOPMENTAL abnormalities of the cricoid cartilage are rare.

Two types have been encountered in four patients in this department, which has served a population of about 150,000, for the last 26 years. (1) Circumferential narrowing of its lumen due to generalized circumferential thickening of the cartilage inwards. (2) Obstruction of the laryngeal lumen by forward thickening of the posterior lamina of the cricoid cartilage (Figure).

Examination of histological sections of embryos shows these abnormalities to be maldevelopmental and not arrests of developmental stages. The cricoid cartilage develops from chondrification in mesenchyme commencing on each side and fusing first posteriorly and then anteriorly.

Symptoms and Signs 

  1. There may be symptoms and signs of dyspnea from birth or shortly afterwards. An important point is that these babies may run a high temperature because of the strenuous activity of the accessory respiratory muscles. This may lead the physician to believe that the

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