Parapelvic renal cyst, also designated as pericalyceal lymphangiectasis, is an unusual lesion that is usually brought to light during surgery for ureteropelvic junction obstruction or recurrent pyelonephritis. Grossly, the renal pelvis is enveloped by a multilocular cystic mass filled with clear fluid. This lesion is confined to the peripelvic tissues and does not extend into the parenchyma, which, however, may show the effects of hydronephrosis or pyelonephritis. A 50-year-old man presented with hydronephrosis. An ultrasonography revealed hydronephro-sis of the left kidney. Intravenous pyelography and DMSA ("Tc-Dimercaptosuccinic acid) scan showed nonfunctioning kidney of the same side. Simple left nephrectomy was done. The renal pelvis was mildly dilated and a cyst was found buldging into the renal pelvis. The content was watery clear and the cyst was not connected to the renal pelvis or calyces. The cyst was round unilocular and lined by attenuated single layer of endothelial cells. The endothelial cells showed no reactivity to factor-VIII related antigen. With these findings, we concluded that this cystic lesion is basically lymphatic cyst and hydronephrosis was caused by the compression of pelvic out-flow of the kidney.
Male ; Humans ; Cysts

A total of 66 cases of thymoma(57 surgically resected cases and 9 incisional biopsy cases) were reviewed with an attempt to correlate pathomorphologic features and clinical presentations. Criteria of benign or invasive thymoma were primarily determined by operative clinical and pathologic findings. Of them, 21 cases were invasive thymomas. The mean age of patients at the time of surgery was 47 years and it occurred largely in the sixth decade. Myasthenia gravis was accompanied in 29 cases(43%). One patient died during folow-up period, and five of the remainder suffered from recurrence. Microscopically, mixed type was the most common one(33 cases), being followed by predominantly epithelial type(17 cases) and predominantly lymphocytic type(16 cases). Thirty four cases of thymomas were cortical type, 29 mixed type, and the remaining 3 medullary type. None of the histologic type were significantly correlated with tumor invasiveness, Myasthenia gravis was more frequently associated with mixed and cortical type, respectively.
Biopsy

A femoral bone tumor causing a valgus deformity by affecting the growth plate was found. Long intramedullary diaphyseal tumor was separated by septum at the metapysis. Low grade chondrosarcoma was confirmed diagnosed by pathologists. Progressive limb deformity can be a sign of bone tumor in growing period.
Chondrosarcoma* ; Congenital Abnormalities* ; Extremities* ; Growth Plate

We have reviewed ovarian mature cystic teratomas with features of chronic thyroiditis that were diagnosed at the department of pathology, Seoul National University Hospital during 7 years, 1984-1991. Twenty three case(8%) containing thyroid tissue among 285 ovarian mature teratomas were available for histopathologic examination. Among these, 4 cases(1.4%) showed lymphocytic infiltration with lymphoid follicle formation. These four cases were examined according to the strict histologic criteria of autoimmune thyroiditis and reactive non-autoimmune thyroiditis for the purpose of differentiation of pathogenesis. Two cases were similar to autoimmune in nature and the other two cases simply seemed to reflect reactive features to adjacent stimulating elements. In conclusion, thyroid tissue present in ovarian cystic teratoma may have histologic features of chronic thyroiditis of either autoimmune or non-autoimmune origin.

Major lymphocyte subsets were quantitated using immunofluorescence staining and flow cytometric analysis in Korea Air Force pilots undergoing continuous training and intensive situation both physically and psychologically. Total 197 subjects were included in this study. Young students assayed in parallel as group I (28 subjects) control group. The pilots were divided into two groups, group II 2nd and 1st lieutenants and group III(93) captain and major, according to the rank. The percentage of CD4 helper T lymphocyes was higher in group III (48.91+/-10.11%) Than group I (45.42+/-4.73%) or II(47.08+/-8.28). The percent of CD8 cytotoxic T lymphocytes of group III (23.53 5.64%) was lower than that of group I (28.91+/-3.37) or group II (25.95+/-6.36). Consequently, CD4/CD8 ratio was higher in group III (2.24+/-0.79) than in group I(1.59 +/-0.27) or group ~l.95+/-0.66). Total white blood count of group III (6969+/-1335 count/mm2) was lower In group III than that of groupI (7639+/-1788) or group II(7210+/-1653), but no statistical differences were noted in lymphocyte count and Percents of CD16 natural killer cells and CD19 B lymphocytes. In light of the functional significance of the lymphocyte subsets Investigated, It is suggested that the present stress-induced alterations may have practical implications.
B-Lymphocytes ; Flow Cytometry ; Fluorescent Antibody Technique ; Humans ; Killer Cells, Natural ; Korea ; Lymphocyte Count ; Lymphocyte Subsets* ; Lymphocytes* ; T-Lymphocytes, Cytotoxic

No abstract available.
Biopsy, Fine-Needle* ; Thymoma*

The occurrence of squamous metaplasia(morule) in colorectal mucosa and adenocarcinoma, althrough rare, has been well documented. In contrast, very little mention has been given to mature squamous cells seen in colorectal polyps or adenomas. A 42-year-old woman presented with a 2-month history of diarrhea and melena. Proctosigmoidoscopy revealed a 4 cm-sized polypoid tumor 20 cm above the anal verge. Colonoscopic biopsy showed tubular adenoma, and a segmental resection of sigmoid colon was done. Microscopically, the tumor was c classical tubular adenoma containing multiple solid nests of squamous cells scattered only in the neoplasm; the squamous nests were generally small, and some showed direct continuity with adenomatous glands. The squamous cells were keratinizing and had regular nuclei with no mitotic activity. The importance of this phenomenon lies in its pathologic recognition, and the findings suggest that awareness of this rare occurrence in colorectal polyps should avert such overdiagnosis, and consequently prevents unnecessary radical surgery.
Female ; Humans ; Adenoma ; Biopsy

A 39-year-old male patient presented with chronic abdominal pain and intermittent diarrhea for 8 months. Colon study showed an annular stricture at the ileocecal value. He underwent ileocecectomy with clinica impression of intestinal tuberculosis. The resected intestinal wall along the lieocecal junction demonstrated a localized, annular constriction and intramural nodular inflammatory growth in which were clusters of multiple microabscesses as well as acute and chronic inflammatory cell infiltration including eosinophils and fibrosis. Encountered were a few resolving phase of parasitic granulomatous tunnels in which fragments of degenerated sparganum with foreign body reaction were found in one focus. He had history of ingesting uncooked frogs 2 years ago. The above case suggests that differential diagnosis of inflammatory tumorous lesions in the intestine should include sparganosis in Korea.
Male ; Humans ; Diagnosis, Differential

To compare the efficacy of Stamey with that of Raz procedure in the correction of stress urinary incontinence, we studied retrospectively 43 patients who underwent either procedure at our institution between January, 1989 and June, 1994. Of 43 Patients were 23 underwent Stamey and 20 underwent Raz procedures. Patient's characteristics of the 2 groups were similar, but mean operative time was 107 minutes in Stamey and 76 minutes in Raz procedure(P<0.05), a care rate was obtained postoperatively in 65y. of the patient in Stamey and in 85% in Raz procedure(P<0.05). Postoperative complications were similar in 13.5% of the patients in Stamey and in 12.5% in Raz procedure. Although most predictive factors were not associated with cure or failure in our series, the postoperative cure rate was significantly higher in the group with urinary retention of more than a week. It is thought that Raz procedure is more safe and accurate than Stamey procedure by its shorter operation time and higher success rate(P<0.05). although patient's satisfaction with postoperative morbidity is similar between Stamey and Raz procedure.
Humans ; Operative Time ; Postoperative Complications ; Retrospective Studies ; Urinary Incontinence* ; Urinary Retention

A case of metastatic mucoepidermoid carcinoma of the lung, originating from the hard palate, was diagnosed by sputum and bronchial washing cytology. Although the cytologic features of mucoepidermoid carcinoma have been well described, it is easy to confuse mucoepidermoid carcinoma with the more common primary adenocarcinoma or squamous cell carcinoma of the lung. The features distinguishing mucoepidermoid carcinoma from other primary neoplasms includ 1) mucus-secreting cells individually and in clusters admixed with other cell components, 2) epidermoid cells identified by the presence of abundant spread-out cytoplasm and an oval dark nucleus and 3) intermediate cells resembiling normal ductal epithelial cells with moderate-toscanty cytoplasm, a central, round vesicular nucleus and a prominent nucleolus, The morphologic features of metastatic mucoepidermoid carcinoma in the case were similar to those of primary sallvary mucoepidermoid carcinoma.
Adenocarcinoma ; Carcinoma, Mucoepidermoid ; Carcinoma, Squamous Cell ; Cellular Structures ; Cytoplasm ; Epithelial Cells ; Lung* ; Palate, Hard ; Sputum