No abstract available.
Killer Cells, Natural* ; Lymphocytes* ; Lymphocytes, Null* ; Schizophrenia*

On the bases of the authors analysed 64 cases of pituitary adenoma, endocrinologic manifestations and immunohistochemical staining by both conventional means and the antigen retrieval system. The incidence of each type and there interrelationship was thus demonstrated. The endocrinologic results of 64 cases were as follows: Should the total number of each type of adenoma be included here. Prolactin-secreting adenoma(39.0%), nonfunctioning adenoma(26.6%), and GH-secreting adenoma(17.2%). Conventional immunohistochemical staining revealed the presence of null cell adenoma(48.4%), prolactinoma(21.9%), and GH-secreting adenoma(12.5%). All adenomas shown by conventional immunohistochemical staining to be null cell type were thus reclassified by the antigen retrieval system. On the basis of these results, the authors concluded that for the classification of pituitary adenomas, immunohistochemical staining by the antigen retrieval system is more sensitive than conventional immunohistochemical staining. In addition to avoid false-positive results, EM confirmation is required.
Adenoma ; Classification ; Incidence ; Lymphocytes, Null ; Pituitary Neoplasms*

The current classification of pituitary adenomas is based on cell type, largely ascertained by immunohistochemistry and electron microscopy. In an application of immunohistochemistry, pathologists have some problems in judging the results. An immunostaining result does not always correspond with a serum hormone level. It is also difficult to determine the nature of a tumor when a few cells are positive. We performed the immunohistochemical stains on 34 pituitary adenomas using polyclonal antibodies to six pituitary hormones [PRL (prolactin), GH (growth hormone), ACTH (adrenocorticotropic hormone), FSH (follicle-stimulating hormone), LH (luteinizing hormone), TSH (thyroid-stimulating hormone)] and compared with serum hormone level. The serum hormone level was increased in 14 cases (41.2%) of PRL, 7 cases (20.6%) of PRL & GH, 6 pleurihormonal cases (17.6%), 4 nonfunctioning cases (11.8%), 2 cases (5.9%) of FSH, and 1 case (2.9%) of GH. The most common immunohistochemical type of pituitary adenoma was 10 prolactinoma cases (38.5%), followed by 7 pleurihormonal cases (26.9%), 4 null cell cases (15.4%), 3 cases of mixed PRL & GH (11.5%), 1 case of ACTH (3.8%) and 1 FSH & LH case (3.8%). The corresponding rates of the serum hormone level and immunostaining results were 94.1% in GH, 88.9% in TSH, 85.7% in LH, 82.4% in ACTH, 66.7% FSH, and 61.8% in PRL. In the immunostaining for FSH, 12 cases showed less than 5% positivity and most of them exhibited the normal serum hormone level. In conclusion, the most common elevated serum hormone and immunohistochemical type of pituitary adenoma was prolactinoma. The corresponding rate of the serum hormone level and immunostaining result was the highest in GH cell adenoma and was the lowest in prolactinoma. The cells showing less than 5% positivity seem to be entrapped normal cells.
Adenoma ; Adrenocorticotropic Hormone ; Antibodies ; Classification ; Coloring Agents* ; Immunohistochemistry ; Luteinizing Hormone ; Lymphocytes, Null ; Microscopy, Electron ; Pituitary Hormones ; Pituitary Neoplasms* ; Prolactinoma

Forth-nine patients with clinically nonfunctioning pituitary adenomas were evaluated clinically, endocrinologically and morphologically in this study.The results obtained were as follows.1) The mean age was 47.1 years(range 23 to 76 years), and 22 were male(44.9%) and 27(55.1%) female.2) The major clinical manifestations of male patients were visual disturbance(72.7%), headache(54.5%), loss of libido(45.5%), but those of female visual disturbance(59.6%), headache(48.1%), amenorrhea(48.1%), loss of body hair(25.9%), and galactorrhea(22.2%).3) All were macroadenomas evaluated by CT scan, and in the male patients 16(72.7%) were grade III and 6(27.3%) grade IV by Hardy classification, and in the female patients 6(22.2%) were grade II, 12(44.4%) grade III, and 9(33.3%) grade IV.4) The elevation of serum prolactin were observed 7(31.8%) out of male, and 24(88.9%) of female.5) Combined stimulation test revealed that GH insufficiency was 89.6%, ACTH 58.9%, LH 58.7%, FSH 51.1 %, and TSH 50.0% and hormone insufficiency more than 4 pituitary hormone was 54.2%.6) Prolactin response to TRH decreased in 12(70.6%) of 17 patients with normal basal prolactin, and 19(76.0%) of 25 with elevated prolactin.7) Immunohistochemistry revealed that null cell adenoma was 57.1%, gonadotrope adenoma 26.5%, plurihormonal adenoma 8.0%, silent corticotrope adenoma 4.0%, thyrotrope adenoma(2.0%), and lactotrope adenoma(2.0%).8) The ultrastructural characteristics examined by electron-microscopy were similar despite of immunohistochemical differences.In summary, the prevalance of clinically nonfunctioning pituitary adenoma was middle aged men and women, and their main symptoms were visual disturbance and headache. Hyperprolactinemia and pituitary hormone insufficiency more than 4 hormone were observed commonly. Most of them were null cell adenoma and gonadotrope adenoma examined by immunohistochemistry. Further study using modern techniques: cell culture, subunit-immunostaining. And Northern blot analysis of mRNA for pituitary hormone or subunit, will be needed to clarify null cell adenomas.
Adenoma ; Adrenocorticotropic Hormone ; Blotting, Northern ; Cell Culture Techniques ; Classification ; Female ; Headache ; Humans ; Hyperprolactinemia ; Immunohistochemistry ; Lymphocytes, Null ; Male ; Middle Aged ; Pituitary Neoplasms ; Prolactin ; RNA, Messenger ; Tomography, X-Ray Computed

The authors present a statistical survey of the general incidence, age distribution, and preferential site of 631 tumors of the brain which have been surgically treated at Korea university medical center, department of neurosurgery over the last period of 10 years from 1985 to 1994. Among them 269 cases were males and 362 were females. Of the 631 intracranial neoplasms verified histologically, tumors of neuroepithelial tissue comprised 34%(212 cases), tumors of meninges 23%(148 cases), pituitary adenoma 18%(114 cases), metastatic tumors 8%(50 cases), neurilemmomas 8%(49 cases), germ cell tumors 3%(13 cases), cyst and tumor like lesions 3%(16 cases), and lymphomas 1%(5 cases). Of the 178 gliomas, astrocytic tumors comprised 83%(148 cases), oligodendroglial tumors 11%(20 cases), ependymal tumors 3%(6 cases) and mixed gliomas 1.7%(3 cases). Brain tumors occurred most frequently in the age group of 45-50 years, as seen by an incidence of 63 cases(10%). The male to female ratio was 0.74: 1. Tumors that showed a definitive preponderance of females over males were meningiomas, neurilemmomas, and pituitary adenomas. Supratentoral and infratenorial cases were 73%(461 cases) and 26%(162 cases), respectively and the remaining cases involved both sites. Of the 114 cases of childhood and adolescent tumors, 60 were male and 54 were female. Supratentorial tumors were 56% and infratentorial were 44%. The tumors in order of frequency were astrocytomas(28%), primitive neuroectodermal tumors(21%), craniopharyngioma(10%) and so on. Meningiomas occurred most frequently in parasagittal/falx area(25%), followed by cerebral convexity 23%, sphenoid 14%, posterior fossa 13%. Among pituitary adenomas, prolactinomas(32%) were the most common and followed by null cell adenomas 31%, growth hormone cell adenomas 15%, mixed GH-PRL cell adenomas 11%.
Academic Medical Centers ; Adenoma ; Adolescent ; Age Distribution ; Astrocytoma ; Brain Neoplasms* ; Brain* ; Female ; Glioma ; Growth Hormone ; Humans ; Incidence ; Korea* ; Lymphocytes, Null ; Lymphoma ; Male ; Meninges ; Meningioma ; Neoplasms, Germ Cell and Embryonal ; Neural Plate ; Neurilemmoma ; Neurosurgery ; Pituitary Neoplasms ; Supratentorial Neoplasms

BACKGROUND AND OBJECTIVES: Extranodal non-Hodgkin's lymphoma (NHL) of the head and neck (H & N) accounts for 10-20% of all cases of NHL. Despite their frequency, the cause of these lymphomas is still poorly understood. Recently, the role of viral origin in NHLs, including Epstein-Barr virus (EBV), as the main cause of sinonasal lymphomas of T/NK cell phenotype and HTLV-1 as a cause of acute T-cell lymphoma/leukemia has been well documented. We investigated the clinicopathologic findings, immunophenotypic profile, and status of EBV and HTLV-1 DNA of patients with H & N lymphoma. MATERIALS AND METHODS: Twenty-seven patients with NHL of H & N region were studied. There were 15 males and 12 females with the median age of 50 years. All patients were reclassified according to the Working formulation (WF) and REAL classificaton. EBV genome DNA and HTLV-1 RNA were surveyed by PCR assay using formalin-fixed and paraffin-embedded tissue blocks. RESULTS: The tonsil was the most commonly involved site (44.4%), followed by nasal cavity (18.5%), nasopharynx (18.5%) and orbit (7.4%). Immunophenotyping revealed 19 cases of B cell lineage, 7 cases of T cell lineage and one case of null cell type. Most of B-cell lymphomas were diffuse large cell lymphomas (58%). Tonsillar lymphomas were all B-cell origin. Four of the five nasal cavity lymphomas and one nasopharyngeal lymphoma showed an angiocentric T/NK cell phenotype with strong association with EBV. EBV genome was detected in 15 of 26 H & N NHLs (57.7%). Seven of 19 B-cell lymphomas (36.8%) and all T/NK or null cell type lymphomas were positive for FBV DNA. However, there was no HTLV-1 positive cases found. CONCLUSIONS: It could be concluded that the high incidence of EBV of angiocentric T/NK-cell lymphomas of the nasal cavity may indicate a probable role of EBV in the development of these lymphomas.
B-Lymphocytes ; Cell Lineage ; DNA ; Female ; Genome ; Head* ; Herpesvirus 4, Human* ; Human T-lymphotropic virus 1* ; Humans ; Immunophenotyping ; Incidence ; Lymphocytes, Null ; Lymphoma* ; Lymphoma, B-Cell ; Lymphoma, Large B-Cell, Diffuse ; Lymphoma, Non-Hodgkin ; Male ; Nasal Cavity ; Nasopharynx ; Neck* ; Orbit ; Palatine Tonsil ; Phenotype ; Polymerase Chain Reaction ; RNA ; T-Lymphocytes

The development of glomerular injury in patients with malignancy is considered as paraneoplastic syndrome. The most frequently observed renal lesions associated with malignancies are the membraneous glomerulonephritis on carcinomas and minimal change nephrotic syndrome on Hodgkin's disease. However, glomerular diseases on non-Hodgkin's lymphoma were only occasionally reported. Here we report a case of IgA nephropathy associated with non-Hodgkin's lymphoma. A 53-year-old woman who had complained of gross hematuria and fever was admitted to Wonju Christian Hospital. A urinalysis revealed 2+ proteinuria and red blood cells >30/HPF. A 24-hour urinary protein excretion was 379mg. She was diagnosed as IgA nephropathy on renal biopsy. Subsequently, biopsy of her enlarged neck node was performed for evaluation of fever of unknown origin and it revealed non-Hodgkin's lymphoma (Ki-1 positive anaplastic lymphoma null cell type). Combination chemotherapy was instituted with cyclophosphamide, adriamycin, vincristine and prednisone. After 3 cycles of chemotherapy, she showed no evidence of proteinuria and hematuria with clinical and radiological improvement of malignant lymphoma. Therefore we suggest of certain association between IgA nephropathy and non-Hodgkin's lymphoma by the observation of corresponding disease activity.
Biopsy ; Cyclophosphamide ; Doxorubicin ; Drug Therapy ; Drug Therapy, Combination ; Erythrocytes ; Female ; Fever ; Fever of Unknown Origin ; Gangwon-do ; Glomerulonephritis ; Glomerulonephritis, IGA* ; Hematuria ; Hodgkin Disease ; Humans ; Immunoglobulin A* ; Lymphocytes, Null ; Lymphoma ; Lymphoma, Non-Hodgkin* ; Middle Aged ; Neck ; Nephrosis, Lipoid ; Paraneoplastic Syndromes ; Prednisone ; Proteinuria ; Urinalysis ; Vincristine