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Biomedical subjects

K W Suh

Publications and source records attributed to K W Suh.

11 recordsLinked to original sources
PubMed1992

Congenital absence of gallbladder.

Nine surgically proven congenital absence of gallbladder (CAGB) cases were reviewed. All of them had one or more kinds of biliary symptom. Tests such as abdominal ultrasonography, intravenous or oral cholecystography and even endoscopic retrograde cholangiography not only failed to predict CAGB but misleadingly indicated other similar conditions. Only the abdominal computed tomography (CT), performed on one patient, enabled the accurate diagnosis of CAGB. All the patients underwent abdominal exploration, and CAGB was confirmed by the meticulous dissection of the entire extrahepatic biliary tree and the operative cholangiography. Five patients had concomitant biliary pathologies responsible for their symptoms, but four patients had isolated CAGB. CAGB is a rarely encountered condition for a clinician, but extensive diagnostic work-ups including abdominal CT should be performed in all situations where CAGB is suspected. Thus unnecessary exploration can be avoided in the isolated CAGB case.

Bile Duct Diseases↗
PubMed1978

Symptoms, findings, and methods of diagnosis in patients with acoustic neuroma.

The records of 225 patients with surgically documented acoustic neuromas seen at the Mayo Clinic between 1966 and 1976 were studied. Included in this group were 4 patients who had von Recklinghausen's disease with bilateral ear involvement, 7 patients with recurrence of acoustic neuroma, and 8 patients who were referred because of recurrent acoustic neuroma. Symptoms, clinical findings, and results of audiologic, vestibular, and roentgenographic studies were analyzed. Nine patients had a history of sudden onset of hearing loss, and 11 had a history of vertigo. A correlation between the size of the lesion and the symptoms, physical findings, and roentgenographic accuracy was made in an attempt to gain further knowledge of the natural course of the pathologic processes involved.

Adolescent↗
PubMed1977

Inverting papilloma of the nose and paranasal sinuses.

Inverting papilloma of the nose and paranasal sinuses has been classified as a true neoplasm by most authors. It is distinct from the ordinary nasal polyps in that it has a different cause, different histologic features, a higher recurrence rate, and is occasionally associated with carcinoma. This study includes 57 patients seen over a 30-year period who had inverting papilloma and for whom the history, clinical and radiologic findings, treatment methods, pathologic sections, and recurrences were analyzed. Features associated with higher recurrence rate were epithelial atypia and extent of lesions. Females showed higher recurrence rates than males. External approaches (lateral rhinotomy) reduced recurrence remarkably compared with transnasal removal (13 percent versus 45 percent). Four patients had associated carcinoma with inverting papilloma, and more extensive operations were perfomred in these cases; one patient died of the tumor. Radical aggressive treatment and careful follow-up are advocated because of the higher recurrence rate after inadequate removal and because of possible malignant transformation.

Adolescent↗
PubMedDate not supplied

Neurilemmomas of the cervical vagus nerve.

Four patients were seen with neurilemmoma which arose in the cervical vagus nerve. Three tumors arose in the upper third of the lateral neck, and the remaining one in the lower third. Lateral neck mass was a prominent symptom in 3 patients, and parapharyngeal mass in the remaining one. The parapharyngeal mass bulged into the oropharynx in the tonsillar and retrotonsillar region and caused mild swallowing difficulty. Complete surgical extirpation by means of intracapsular enucleation was possible in all 4 patients. All patients remained free of disease for periods ranging from 15 to 75 months following surgery. It would appear that an intracapsular enucleation may be advisable for clearance of this kind of tumor.

Adult↗
PubMedDate not supplied

Comparative study using computed tomographic thin-section zoom reconstructions and anatomic macrosections of the temporal lobe.

Thin-section (1.5 mm) high-spatial-resolution computed tomography (CT) in combination with computerized high-resolution image reconstruction is an effective, noninvasive means of studying patients with a variety of temporal bone abnormalities. To determine what degree of definition and anatomic accuracy could currently be obtained by using these techniques, we performed thin-section CT and high-resolution image reconstruction with use of two fresh-frozen cadaver head specimens. We then compared these images with the actual anatomic macrosections subsequently obtained from the specimens. We concluded that high-resolution CT scans of temporal bone can produce accurate, highly detailed, diagnostic images of the internal auditory canal, vestibule, cochlea, vestibular aqueduct, semicircular canals, and middle ear space.

Cadaver↗
PubMedDate not supplied

Surgically correctable causes of sleep apnea syndrome.

This report presents six cases of obstructive sleep apnea associated with discrete anatomic abnormalities of the upper airway tract. All patients were relieved of their sleep apnea by surgical correction of the airway obstruction, and therefore permanent tracheotomy was avoided. The obstructive causative factors were nasal septal deformity, adenoidal hypertrophy, nasopharyngeal stenosis, lingual cyst, lingual tonsillar hypertrophy, and laryngeal cyst. The last-named four conditions have not previously been reported as correctable causes of sleep apnea.

Adolescent↗
PubMedDate not supplied

Obliteration of vestibular and cochlear aqueducts in animals.

The right vestibular aqueduct was obliterated in guinea pigs, chinchillas, and monkeys, and the right cochlear aqueduct and both the right vestibular and right cochlear aqueducts were obliterated in guinea pigs and chinchilas. Changes in auditory acuity were monitored by determining averaged temporal-response thresholds, and temporal-bone histologic studies were performed. Obliteration of the vestibular aqueduct or both the vestibular and cochlear aqueducts consistently produced endolymphatic hydrops in guinea pigs. In these animals, the auditory acuity gradually deteriorated. The low tones consistently were depressed more than the high tones. The auditory changes corresponded to the severity of endolymphatic hydrops. On the other hand, no significant histologic or audiometric changes were demonstrated in monkeys after obliteration of the vestibular aqueduct or in chinchillas after obliteration of the vestibular aqueduct or of both the vestibular and cochlear aqueducts. No significant histologic or audiometric changes were demonstrated in guinea pigs and chinchillas after obliteration of the cochlear aqueduct.

Animals↗