Leiomyoma is commonly found in the female genital tract, but occurrence in the urinary bladder is very rare with only 235 cases reported in the literature. These tumors have been classified as intravesical (63%), intramural (7%) and extravesical (30%) depending on the direction of the growth. We report a case of intravesical leiomyoma of the urinary bladder in a 36 year-old woman who exhibited dysuria and urinary retention. The gross and microscopical findings of leiomyoma of the bladder are similar to those of the uterus. Immunohistochemical stains for estrogen receptor (ER) and progesterone receptor (PR) revealed diffuse nuclear staining in smooth muscle cells, supporting the hypothesis of hormonal influence in tumorigenesis.
Adult ; Carcinogenesis ; Coloring Agents ; Dysuria ; Estrogens ; Female ; Humans ; Leiomyoma* ; Myocytes, Smooth Muscle ; Receptors, Progesterone ; Urinary Bladder* ; Urinary Retention ; Uterus

Vertebral pedicle screws have been widely used for secure posterior spinal fixation. When postoperative CT scan films were made, the blurring of pedicle screws were observed and we could not figure nut the exact diameter of screw and canal encroachment. There is no information in the difference hetween actual diameter and measured diameter of pedcile screws in CT yet. In this study, we try to find out partial voiume averaging artifact of pedicle screws made of stainless steel and titanium. Partial volume averaging artifact occurs when the shape of an object changes within the thickness of the CT slice or when a relatively small object is only partially included within the slice. Four pig cadaveric spinal column including 6 vertebrae each were prepared and CT scans were performed after insertion of C-D screws(stainless steel) to the left and TSRH screws(titanium) to the right pedicle. Another CT scans were performed after insertion of C-D screws to the right and TSRH screws to the left pedicle. The third CT scans were made after removal of all the pedicle screws. Actual C-D screw diameter was 6mm and CT scanned diameter was 8. I 6+/-0.66mm. Actual TSRH diameter was 6.5 mm and CT scanned diameter was 6.59+/-0.34mm. In conclusion, stainless steel has more partial volume averaging artifact than titanium. Safety margin of pedicle screw made of stainless steel is about 2mm and that of titanium is about 1 mm.
Artifacts ; Cadaver ; Nuts ; Spine ; Stainless Steel* ; Titanium* ; Tomography, X-Ray Computed*

No abstract available.

A case of Wegener's granulomatosis is described, with special attention focused on the typical histologic findings and involvement of both middle ear and lung. The patient is a 37-year-old man presented with four-month history of cough and sputum. He had a past history of surgery of both ears because of otitis media followed by left facial palsy. Chest radiographs showed variable sized ill defined nodules in both lower lobes with internal airspace consolidation. Histologic preparations of the open lung biopsy specimens demonstrated a diffusely scattered palisading micro and macrogranulomas with central focus of neutrophils and necrotic collagen surrounded by histiocytes, histiocytic giant cells. Fibrinoid necrosis involved blood vessels and lung parenchyma. Chronic inflammation, diffuse granulation tissue formation and irregular fibrosis are also found in the lung parenchyma. The histologic findings of middle ear which was previously biopsied showed scattered palisading ill defined microgranulomas mixed with fibrotic tissue.
Adult ; Biopsy ; Blood Vessels ; Collagen ; Cough ; Ear ; Ear, Middle* ; Facial Paralysis ; Fibrosis ; Giant Cells ; Granulation Tissue ; Granuloma ; Histiocytes ; Humans ; Inflammation ; Lung* ; Necrosis ; Neutrophils ; Otitis Media ; Radiography, Thoracic ; Sputum ; Vasculitis ; Wegener Granulomatosis*

Cystic nephroma (CN) is a benign cystic neoplasm composed of mixed epithelial and stromal elements. Less than 200 cases have been reported. We had a patient, a 41-year-old woman, who had a huge typical CN. The patient was admitted for a right renal mass that was found incidentally. On laparaoscopic right nephrectomy, there was an encapsulated 7 cm multilocular cystic mass at the upper pole. Microscopically, the cystic wall was lined by a single layer of low cuboidal or hobnail epithelium without a solid area. The thin septa were composed of bland, ovarian type spindle cells. The main differential diagnoses were mixed epithelial and stromal tumor (MEST), low grade multilocular renal cell carcinoma, and tubulocystic carcinoma. The results of immunohistochemical staining were cytokeratin 7/19(+/+) and CD10(-) in lining epithelium, estrogen receptor/progesterone receptor(+/+) in stromal cells. After surgery, she was free of recurrence for 10 months. We report this rare case and compare it with other cystic renal tumors, especially MEST.
Adult ; Carcinoma, Renal Cell ; Diagnosis, Differential ; Epithelium ; Estrogens ; Female ; Humans ; Keratins ; Kidney ; Nephrectomy ; Receptors, Estrogen ; Recurrence ; Stromal Cells

A 51-year-old female developed a distinctive perioral rash, conisting of discrete or confluent erythematous papules for one and a half years. Histopathologic examiriation revealed upper dermal granulomas admixed with lymphoytes. Pieces of hair shaft were staincd peri-dish by AFB in the center of granuloma, which might play a role in the formation of the granuloma She also had used corticosteroid ointment intermittently duririg this time. There were no associated systemic abnormalities. The lesions resolved after two month treatment with oral corticosteroid and tetrac cline.
Dermatitis, Perioral* ; Exanthema ; Female ; Granuloma ; Hair ; Humans ; Middle Aged

Dyschromatosis universalis hereditaria is a rare pigmentary disorder characterized by widespread mothed hyperpigmentation and hypopigmentation. We report a 40-year-old male patient with numerous hyperpigmenter, and hypopigmented macules all over the body except on the palms and soles. The family history revealed similar pigmentary changes in 5 other members through 4 generations, and we could guess the hereditary pattern of the disease of this family to be autosomal dominant inheritance.
Adult ; Family Characteristics ; Humans ; Hyperpigmentation ; Hypopigmentation ; Male ; Moths ; Wills

Cerebriform intradermal melanocytic nevus is a cause of cutis veticis gyrata, a morphologic term which describes the hypertrophy and folding of the skin, typically occurring on the scslp, to present a gyrate or cerebriform appearance. We report a 37-year-old woman with a 17 x 22cm soft, convoluted mass over most of the occipital, parietal, and temporal scalp. At birth, she had a small brownish macide on the occipital scalp that enlarged to form this extensive lesion. Histologically, nests of nevus cells were shown in the upper and the mid dermis.
Adult ; Dermis ; Female ; Fibroadenoma ; Humans ; Hypertrophy ; Nevus ; Nevus, Pigmented* ; Parturition ; Rabeprazole ; Scalp ; Skin

We investigated the occurrence of color vision loss in 70 organic solvent mixtures exposed workers and in 47 controls. Color Vision was assessed with a color arrangement test designed to identify the defective color sense, the Han Double 15-Hue Test. The results of the test were no significant difference between exposed workers and controls in the proportion of subjects who committed one or two errors. Quantitative analysis, using color confusion index(CCI), showed no signifiant difference between exposed workers and controls. A significant linear correlation was present between age and CCI in both exposed workers(CCi=0.0056age + 0.94; r=0.23; p<0.05) and controls(CCI=0.0066age + 0.86; r=0.33; p<0.05). Qualitative analysis of the patterns on the hue circle showed that the prevalence of acquired dyschromatopsia was 21% in both and no significant difference. Multiple regression analyses showed that age was significantly related to color vision loss. These results did not provide evidence of a relationship between organic solvents exposure and incidence of color vision loss. In field studies for monitor the people at risk of the acquired color vision loss involving low-dose organic solvents exposed workers, both quantitative and qualitative information should be considered.
Color Vision ; Incidence ; Prevalence ; Solvents

BACKGROUND: Recently, it has been established that plateletpheresis needs more efficiency and shorter processing time. Fenwall laboratories developed a new collection chamber for CS-3000 Plus, PLT-30TM collection chamber, which can reduce the processing time with efficient collection. We evaluated the PLT-30TM collection chamber by comparing it with A-35 collection chamber that has been used as a standard collection chamber of CS-3000 Plus us. METHODS: Thirty platelet collection procedures were performed using the CS 3000 Plus with A-35 collection chamber and PLT-30TM collection chamber. The changes of the hematologic parameters between pre- and post-donation in donors and the total platelets yields and the contaminated WBCs in the plateletpheresis products were evaluated. In processing, the yield predictor calibration was adjusted to 1.00 and 1.13 in A-35 and PLT-30TM respectively. Yield predictors of pheresis were the same as 3.5x1011 in both and end point volumes were calculated from the CS-3000 Plus. Processing volume and processing times were compared between A-35 and PLT-30TM groups. RESULTS: With PLT-30TM collection chamber, 3.38+/-0.72x1011/L platelets were harvested, whereas 3.20+/- 0.73x1011/L were collected with A-35 collection chamber, which was not significantly different. But processing time with the PLT-30TM collection chamber was more reduced than that with the A-35 collection chamber by about 20 minutes (PLT-30TM : 88.6+/-8.4 min, A-35 : 106.7+/-11.7min). Collection efficiency of PLT-30TM chamber was 50.7+/-12.5% and that of A-35 chamber was 44.4 + 8.8%. The leukocyte contamination of the platelet concentrates were not statistically different(PLT-30TM: 0.0-3.6x106, A-35 : 0.1-4.1x106). CONCLUSIONS: PLT-30TM collection chamber has the advantages of shortening the donation time and decreasing the processing volume with better collection efficiency and flexibility of platelet concentrate volume.
Blood Component Removal ; Blood Platelets ; Calibration ; Humans ; Leukocytes ; Plateletpheresis ; Pliability ; Tissue Donors