Thirty-five cerebello-pontine angle lesions were diagnosed with simple skull X-ray, CT, and angiography atSeoul National University Hospital from Sept. 1978 through Aug. 1982. The radiographic findings were analysed withemphasis on the differential points of CT among the major three cerebello-pontine angle tumors; acousticneurinoma, meningioma and epidermoid. The results are as follows; 1. Among the 35 cases of cerebello-pontine anglelesions, 19 cases were acoustic neurinoma. 4 cases miningioma, 4 cases epidermoid, 2 cases metastasis, 1 caseschoroid plexus papilloma, 1 case arteriovenous malformation, and 3 cases intra-axial posterior fossa tumors. 2.The characteristic radiographic findings of acoustic neurinoma were windening of internal auditory canal, petrousbone erosion, posterior extension of tumor at the level of internal autidory canal, hypo or isodense mass onpre-contrast CT with high enhancement after intravenous contrast infusion, and cystic change within the mass. 3.Meningioma shows anterior extenstion of the lesion at the level of internal auditory canal, broad base and obtuseangle sign of the lesion with petrous bone, hyperdense mass on precontrast CT. with highly homogeneous enhancementafter intravenous contrast infusion. 4. Epidermoid characteristically shows hypodense mass on precontrast CT withno change after intravenous contrast infusion. 5. The differential points of the major 3 cerebello-pontine tumorswere bone change, mass location, attenuation , degree of attachment to petrous bone, and cystic change.
Angiography ; Arteriovenous Malformations ; Infratentorial Neoplasms ; Meningioma ; Neoplasm Metastasis ; Neuroma, Acoustic ; Papilloma ; Petrous Bone ; Skull

Postoperative cheek cysts develop as a delayed complication of Caldwell-Luc operation, usually 10 to 20 years following the surgery. The general clinical presentations are swelling of the cheek, accompanied by dull maxillary facial pain and numbness. Enlarged postoperative cheek cysts infrequently protrude into the orbit and elevate the eyeball, causing double vision. Recently, we experienced two cases of exophthalmos caused by the protrusion of a postoperative cheek cyst into the orbit. One patient, a 39-year-old man, underwent Caldwell-Luc operation 21 years ago, and the other patient, a 53-year-old man, 36 years ago. We were able to secure an accurate measurement of the defective orbital floor using the preoperative 3-dimensional reconstruction CT scan. The postoperative cheek cyst was completely removed using the endonasal and transantral endoscopic approach, and the widely defective orbital floor was reconstructed with Medpor(R).
Adult ; Cheek* ; Diplopia ; Exophthalmos* ; Facial Pain ; Humans ; Hypesthesia ; Middle Aged ; Orbit ; Tomography, X-Ray Computed

No abstract available.
Constriction, Pathologic ; Stents

Phakomatosis pigmentovascularis is characterized by the coexistence of pigmentary and vascular nevi, which are occasionally associated with systemic organ involvement. We report a 12-year-old male, who showed bilateral nevus of Ota on the forehead, periorbital area, sclera and soft palate, nevus of Ito on the scapular area, mongolian spot on the sacral area and widespread nevus flammeus. He was also associated with congenital temporal alopecia on the lower portion of left temporal region since birth.
Alopecia* ; Child ; Forehead ; Humans ; Male ; Mongolian Spot ; Neurocutaneous Syndromes* ; Nevus ; Nevus of Ota ; Palate, Soft ; Parturition ; Port-Wine Stain ; Sclera

Thirty three cases with agenesis of the corpus callosum were reviewed from the base of brain CT findings for last 7 years. Clinical features, associated clinical anomalies and CT findings were also analysed and the embryological basis for agenesis of the corpus callosum were reviewed from the literature.
Agenesis of Corpus Callosum* ; Brain ; Corpus Callosum ; Embryology

No abstract available.
Lung Neoplasms* ; Lung* ; Neoplasms, Squamous Cell*

BACKGROUND: Herpes zoster is characterized by vesicular skin lesions over the unilateral sensory dermatomes being caused by the reactivation of varicella-zoster virus and its incidence seems to be increasing recently. OBJECTIVE: The purpose of this study was to elucidate the epidemiology and the clinical characteristics of herpes zoster. METHODS: The authors observed 877 cases of herpes zoster clinically for annual incidence, age, sex, monthly distribution, predilection site, associated disease, and complications at the Department of Dermatology in Chung-Ang University Hospital during a 10 years period(1982.9-1992.8). RESULTS: 1) The annual incidence averaged over 10 years was 2.26%(877 cases of total 38.717 outpatients) being on the increase recently. 2) The age distribution was in the range of 2-86 years old being most prevalent in the 6th decade and there was equal sex ratio(444:433). 3) There was no statistically significant monthly or seasonal variation in the incidence of herpes zoster. 4) The most common anatomical distribution was thoracic dermatome(51.7%), followed by trigeminal(17.1%), cervical(16.1%), lumbar (10.6%), sacral(1.4%)and multiple deramatomic involvement(3.1%). Left or right side was affected in about the same ratio(439:437), and bilateral involvement was in 1 case. 5) Associated disease of herpes zoster were observed in 210 patients(23.9%) ; hypertension(7.0%), diabetes mellitus(4.1%), tuberculosis(1.8%), postoperative status(0.7%), malignancy(0.7%), gastric ulcer(0.7%), and so on, 6) The most common complication of herpes zoster was postherpetic neuralgia(7.4%), followed by eye complication(2.1%), bacterial infection(1.4%), scar formation(0.7%), neurogenic bladder(0.2%), Ramsay-Hunt syndrome(0.2%), motor paralysis(0.1%), herpes zoster generalisatus(0.1%) 7) The incidence of postherpetic neuralgia increased with age and was highest in trigeminal dermatome. 8) Recurrence of herpes zoster was observed in 4 patients(0.5%). CONCLUSION: According to this study, the annual incidence of herpes zoster showed a tendency to increase recently but there was no significant monthly or seasonal variation. The anatomical distribution was most commom on the thoracic dermatome. The incidenc of postherpetic neuralgia increased with age being most common in trigeminal nerve.
Age Distribution ; Cicatrix ; Dermatology ; Epidemiology ; Herpes Zoster* ; Herpesvirus 3, Human ; Incidence ; Neuralgia, Postherpetic ; Recurrence ; Seasons ; Skin ; Trigeminal Nerve

No abstract available.
Bronchopulmonary Dysplasia* ; Humans ; Infant, Newborn

No abstract available.
Humans* ; Keratinocytes*

No abstract available.
Masticatory Muscles* ; Trismus*