Chondrosarcoma of the larynx is a rare tumor of the upper respiratory tract that originates from cartilaginous tissue. The cricoid cartilage is the most frequent site of onset at the larynx. The diagnosis is not always easy, given the tumor's slow growth rate, the aspecificity of the symptoms, and the low degree of malignancy with which most cases present and which often causes it to be mistake...

in this study, chondrocyte culture was established for the first time in iran, and calcium alginate was used for longer culture of chondrocyte in vitro. the study was programmed in order to be used for future human chondrocyte transplantation. the cartilage specimen obtained from 50 patients who underwent total knee and hip operations in isfahan university of medical sciences. cartilage specime...

Sarcomas account for a very small percentage of the head and neck malignancies in adults Laryngeal sarcomas represent 1% of all laryngeal malignancies. Chondrosarcoma is the most common laryngeal sarcoma, and originates mostly from the cricoid cartilage. Less than 3% of all cervicocephalic rhabdomyosarcomas is located in the larynx and laryngeal rhabdomyosarcoma is characterized by less aggresi...

Cricoid malformations vary according to their severity and anatomic features. Some of them get a delayed diagnosis in spite of the complex medical care. Objective: To present a case with a laryngeal malformation and our surgery technique. Material, method: A case presentation of a cannulated child, who previously had a heart surgery, with difficult decannulation. RESULTS The patient was consi...

PURPOSE To determine the frequency and degree of lateral displacement of the esophagus relative to the cricoid cartilage ("cricoid") using computed tomography (CT) images of normal necks. METHODS Fifty-one cervical CT scans of clinically normal patients were reviewed retrospectively. Esophageal diameter, distance between the midline of the cricoid and the midline of the esophagus, and distanc...

BACKGROUND Cricoid pressure (CP) is often used during general anesthesia induction to prevent passive regurgitation of gastric contents. The authors used magnetic resonance imaging to determine the anatomic relationship between the esophagus and the cricoid cartilage ("cricoid") with and without CP. METHODS Magnetic resonance images of the necks of 22 healthy volunteers were reviewed with and...

After osteosarcoma, chondrosarcoma is the second most common primary bone tumor accounting for 26% of all malignancies. In the laryngeal region however, chondrosarcomas are rather rare. Only 300 cases are reported in literature. Considering laryngeal chondrosarcoma, about 75% occur in the cricoid cartilage, whereas 20% occur in the thyroid cartilage. In this paper we report a case of thyroidal ...

BACKGROUND Thyroid cartilage is an important barrier in anterior cervical approach surgery. The objective of this study is to establish normative values for thyroid cartilage at three planes and to determine their significance on preoperative positioning and intraoperative traction in surgery via the anterior cervical approach. METHODS Neck CT scans were collected from 600 healthy adults who ...

BACKGROUND Developmental histomorphology of the human cricoid cartilage has never been well described. Regional growth centers in the cricoid have been hypothesized, but have never been demonstrated in histological sections. OBJECTIVES To apply Mib-1 immunostaining, a monoclonal antibody directed at a nuclear proliferation marker, in human cricoids to identify a growth center and to study the...

BACKGROUND Sellick described cricoid pressure (CP) as pinching the esophagus between the cricoid ring and the cervical spine. A recent report noted that with the application of CP, the esophagus moved laterally more than 90% of the time, questioning the efficacy of this maneuver. We designed this study to accurately define the anatomy of the Sellick maneuver and to investigate its efficacy. M...