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Biomedical subjects

T C Calcaterra

Publications and source records attributed to T C Calcaterra.

178 records · Page 10Linked to original sources
PubMedDate not supplied

Bilateral first branchial cleft cysts: case report and literature review.

Instances of first branchial cleft anomalies are quite uncommon. A patient with a first branchial cleft cyst was seen and surgically treated at UCLA Hospital in 1972. Three years later he developed a similar lesion on the opposite side of his neck and this also was surgically excised. A review of the literature has revealed only one prior report of bilateral first branchial cleft anomalies. The embryogenesis, diagnosis, and surgical management of these lesions are discussed in this paper.

Branchioma↗
PubMedDate not supplied

Head and neck manifestations of scleroderma.

Scleroderma has rarely been discussed in the otolaryngologic literature. A review of the records of 71 scleroderma patients admitted to UCLA Hospital during the past five years indicates that head and neck manifestations are common, occurring in 80% of these patients. The initial symptoms in 30% among them were related to the head and neck. It is the purpose of this paper to familiarize otolaryngologists with scleroderma. Although it has not been emphasized in the past, this is a disease whose early symptoms and findings may require otolaryngologic consultation and whose later course is characterized by head and neck symptoms and findings in the overwhelming majority of patients.

Adult↗
PubMedDate not supplied

Accuracy of frozen section diagnosis of parotid lesions.

The accuracy of frozen section diagnosis was analyzed in a review of 132 parotid lesions. Of 107 benign lesions, 93% were correctly diagnosed on frozen section analysis, but of 25 malignant lesions, only 9 frozen sections were accurately interpreted. This study points out the difficulty encountered in using the frozen section technique when dealing with malignant parotid lesions and the importance of the surgeon's active participation in the analysis.

Biopsy↗
PubMedDate not supplied

Extracranial surgical repair of cerebrospinal rhinorrhea.

A spinal fluid leak from the intracranial space to the nasal respiratory tract is potentially very serious because of the risk of an ascending infection which could produce fulminant meningitis. Cerebrospinal rhinorrhea typically stems from a complication of head trauma, and fortunately these leaks tend to heal spontaneously. In a smaller percentage of cases, intracranial lesions or congenital osteomeningeal defects are harbored, allowing spinal fluid to enter the nasal cavity, and patients with this condition rarely heal without operative intervention. Succesful repair of a dural defect mandates precise anatomic localization of the leakage site. Although radioisotopes have been a popular method of documenting and localizing a spinal fluid leak, they do not provide the topographic accuracy of intrathecal dyes such as fluorescein. The author not only employs this dye during the preoperative localization of a leak but also uses it intraoperatively to improve visualization of the leakage site and to plan a method of repair. The operating microscope also seems to facilitate visualization of the leak and enables better manipulation of grafts and flaps.

Brain Diseases↗
PubMedDate not supplied

Adult invasive subcutaneous hemangioma.

Hemangiomas consist of a spectrum of benign vascular tumors with variable clinical behavior and microscopic morphology, which usually occur in infancy. A rare variant of these tumors is the invasive subcutaneous hemangioma, which shows an aggressive growth pattern by invading subcutaneous structures and recurring after apparent excision. The authors describe an adult patient with a large submandibular invasive hemangioma who was treated by preoperative embolization and surgical excision.

Adult↗
PubMedDate not supplied

Acoustic measures for detecting laryngeal pathology.

Perturbations in the fundamental pitch and in the peak amplitude of the acoustic signal derived with a contact microphone system were investigated for the purpose of developing useful measures for the detection of laryngeal pathology. Sixty-three patients with various laryngeal pathologies and 31 normal subjects were studied. In 14 cases high speed motion pictures of the larynx were taken in order to examine the physiological mechanisms giving rise to the perturbations in the acoustic signal. The collected acoustic data were statistically processed, and a "critical ellipse" was computed for each subject category. The significance of the concept of a "normal standard" was discussed. It was pointed out that the physiological mechanisms for the acoustic perturbations were rather complicated and that many physiological aspects may have to be taken into account. The need for basic physiological research in relation to pathologic speech production was emphasized.

Adolescent↗
PubMedDate not supplied

Superior laryngeal nerve paralysis an often overlooked entity.

The anatomy and physiology of the larynx are discussed. The larynx is a dynamic structure, and motion pictures are helping to document and to clarify its dynamic behavior in the presence of diseases such as paresis and paralysis. The recognizable distinguishing features of unilateral and bilateral superior nerve paralysis are discussed in detail. These lesions often have gone unrecognized in the past and the patients mistakenly have been referred to the speech therapist with an incorrect diagnosis of "functional voice disorder."

Humans↗
PubMedDate not supplied

Spontaneous cerebrospinal rhinorrhea from the sphenoid sinus.

A case of spontaneous cerebrospinal rhinorrhea from the sphenoid sinus is presented. Surgical exploration of the sinus revealed a defect of the clivus leading into the posterior fossa. Intrathecal fluorescein dye intraoperatively enabled easy identification of the site. Leakage was stopped by tamponading the sinus, using muscle from the anterior thigh.

Cerebrospinal Fluid Rhinorrhea↗