With regard to various pathologic conditions, it is important to understand not only MR findings, which dependon the anatomic location of intraventricular lesions, but also the anatomic location most appropriate for surgicalintervention. In this paper we will analyze and demonstrate the incidence and characteristic MR findings ofvarious intraventricular tumors according to the location of ventricles.
Incidence

The incidence of congenital unilateral renal hypoplasia is extremely rare.Two cases of congenital unilateral renal hypoplasia were presented with review of literature.
Incidence

Fifty three surgically resected gallbladders(49 cases of chronic cholecystitis with or without cholelithiasis, 4 cases of incidentally resected gallbladders) and 14 autopsy cases were subjected to the histotopographic analysis to identify the nature and distribution of metaplastic mucosal changes, and to determine the possible histogenesis of these mucosal lesions and diagnostic implication as a parameter of chronic cholecystitis. 1) Antral type glands were demonstrated in 47(88.7%), goblet cells in 19(35.8%) and surface epithelial changes in 27(50.9%) of total surgical specimens, indicating the benign metaplastic changes of the gallbladder mucosa toward the gastric or intestinal type. 2) Topographic distribution illustrated the extension of antral type gland to the middle and upper one third portions of the gallbladder mucosa in 37 cases, each. Goblet cells in the middle and upper one third of the mucosa were demonstrable in 13 cases(68%) an 8 cases(42%), respectively. 3) Average age by degree of extension was 50.0 years in Grade O-I, 50.1 years in Grade II and 56.4 years in Grade III. 4) Among 53 surgically resected gallbladders, gallstone was found in 31 cases, in which was a significant correlation between the distribution of metaplastic changes by degree of extent and cholelithiasis. 5) There was no statistical significance between incidence of metaplastic changes of the gallbladder and degree of inflammatory reaction by means of chronic and/or acute inflammatory cell infiltration and Rokitansky-Aschoff sinus formation. 6) Only two out of fourteen autopsy cases demonstrated focal and spotty presence of goblect cells. It is of authors assumption that the lining epithelium of the gallbladder undergos various types of metaplastic changes in the diseased conditions, in which cholelithiasis is included as one of preceding factor. And also, the diagnostic implication of epithelial metaplasia as an expression of chronic cholecystitis is discussed.
Incidence

No abstract available.
Incidence*

Pulmonary nocardiosis is an infrequent but severe infection due to the microorganism, Nocardia spp, which may behave as both an opportunists and as a primary pathogens. Usually nocardiosis is found in patients under immunosuppressive regimens for organ transplans, chemotherapy for a malignancy and corticosteroids. The experience of pulmonary nocardiosis in the medical literature is limited to just case reports, with a few series including extrapulmonary nocardiosis. It is believed that the incidence of this infection has been increasing since 1960. The diagnosis is difficult because of the nonspecific clinical manifestations, the lack of laboratory evidence, and the non-specific radiographic findings. Here, we report a case of pulmonary nocardiasis in a 66 year-old patient with alcoholic liver cirrhosis who has suffered from acutely developed dyspnea and general edema. The nocardia species. was cultured from a specimen obtained by a percutaneous transthoracic needle biopsy.
Incidence

Immature teratoma accounts for less than I percent of all ovarian teratomas and occurs commonly in young individuals, the peak incidence being in the second decade. It contains a variable mixture of mature and immature tissues in which neuroectodermal elements almost always predominate. Gliomatosis peritonei, miliary implants of mature glial tissues on the peritoneum or omentum, is an infrequently reported complication of mature or immature ovarian teratomas. We describe the first case in Korea of a 12-year-old girl with an immature teratoma and numerous glial peritoneal implants.
Incidence

The purpose of this study was to elucidate the epidemiology and the clinical characteristics of herpes zoster and chicken pox. 703 patients with herpes zoster and 237 patients with chicken pox who were seen at the Department of Dermatology, St. Marys Hospital during 8 years were taken for this retrospective study. Both groups of the patients were evaluated in regard to annual, seasonal and monthly incidence, age incidence and sex ratio. Patients with herpes zoster were further assessed concerning associated conditions, dermatomic distributions and complications. The results were as follows, 1. The annual rate for chicken pox ranged from 0.03% to 0.18% (mean 0.13%) and revealed no epidemics, however, its incidence was higher in early summer and winter. There was no sexual difference. Chicken pox was seen most. frequently in the 0-9 year age group (91.1%). 2. The annual rate for herpes zoster ranged from 0.23% to 0.52% (mean 0.38%). There were no significant annual, seasonal and monthly variations, and there was a. equal sex ratio. Herpes zoster was seen most frequently in the 50-59 year age group (19.1%) 3. The frequencies of the associated conditions in herpes zoster, in descending order, were infectious disease (2. 7%), diabetes mellitus (2.3%), malignant neoplasm(1. 4%), immunosuppressive drug (l. 4%), autoimmune disease (0.6%), and radiation therapy (0.4%). 4. The dermatomic involvement of herpes zoster was most frequent on thoracic dermatome (53.5%) and others were cervical (16.5%), lumber (10.1%), ophthalmic branch of trigeminal nerve (8.8%), sacral (1.6%), maxillary branch of trigemenal nerve (1.3%), mandibular branch of trigemical nerve (0.6%) and facial nerve dermatome (0.1%). The incidence of involving two different dermatomes was 2.9% and was most common on cervicothoracic dermatome (1.8%). However, one case of cervico thoracic dermatome showed bilateral involvement. 5. The most common complication of herpes zoster was postherpetic neuralgia (6.5%) and others were secondary bacterial infection (2.6%), keratoconjunctivitis (0.6%), keloid formation (0.3%), generalized varicelliform eruption (0.1%), Ramsay-Hunt syndrome (0.1%) and recurrent herpes zoster (0.1%). The mean age of incidence for postherpetic neuralgia was 58.4 years and its incidence was the highest over 70 years (39.5%). Postherpetic neuralgia was most frequently seen in the involvement of ophtalmic branch of trigeminal nerve.
Incidence

The statistics of 40,611 new cases of skin diseases seen in Dermatologic department of Chonnam University Hospital from 1971 to 1980 are analysed and significant changes in incidence of the 25 most common dermatoses are discussed in detail and the results are comared with other surveys. The results of this study are summed up in 4 tables. Table 1. Shows the annual frequency of the 25 most common dermatoses. Table 2. Shows the frequency of the 25 most common dermatoses by age group. Table 3. Shows the frequency of the 25 most common derrnatoses by season, sex and region. Table 4. Shows the comparison of frequency of the 20 most common dermatoses with other reports.
Incidence

Spindle cell carcinoma of the upper aerodigestive tract mucosa was usually presented as polypoid mass and shows squamous cell carcinoma or dysplasia in the surface and underlying spindle cell proliferation. The spindle cell area discloses a variable pattern of sarcoma including rare osteosarcoma of 0~20% incidence. The histogenetic origin of the spindle cell component is now considered a metaplasia of squamous cell carcinoma. We experienced a case of spindle cell carcinoma of larynx showing massive underlying bone formation with proliferation of osteoclast-like cells in 75 year-old man. The immunohistochemical study demonstrates positive reaction with cytokeratin in area of squamous cells and with vimentin in area of spindle cells and osteoclasts. There are very focal reactivity for high molecular weight cytokeratin in spindle cell area.
Incidence

PURPOSE: To report the technical effectiveness, outcome, and incidence of complications of combined clear cornea phacoemulsification with intraocular lens implantation and pars plana vitrectomy. METHODS: Single-center prospective, non-comparative, consecutive case series. Twenty-three eyes of 23 patients underwent combined clear cornea phacoemulsification and pars plana vitrectomy for various vitreoretinal disorders due to cataracts by a single surgeon between July 2003 and August 2004. Surgical feasibility, intraoperative and postoperative complications and outcome of clear cornea incisions in all combined procedure were evaluated. RESULTS: No significant adverse effect of clear corneal wound on pars plana vitrectomy procedures was noted in any of the patients. Operatively and postoperatively, no significant complications related to clear corneal wound were noted, even with the variations of pars plana vitrectomy procedures for cases with and without gas-fluid exchange and intravitreal tamponade. CONCLUSIONS: Clear corneal incisions is a safe and more reasonable alternative in combined phacoemulsification with intraocular lens implantation and pars plana vitrectomy. For a more comprehensive conclusion, a comparative study with scleral tunnel incisions may be necessary.
Incidence