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Results 351 - 400 of 631
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Guiter G E - - 1999
BACKGROUND: Extraskeletal Ewing sarcoma (EES) shares histologic, immunohistochemical, and molecular findings with ES of bone. The authors' goal in conducting this study was to examine the cytomorphologic features of EES. In addition, immunocytostaining for CD99/O13 was performed in all cases, and cytogenetic and molecular data were available in about half ...
Johnson J E - - 1999
OBJECTIVE: To document the cytologic features of endocervical adenocarcinoma in situ (AIS) and invasive endocervical adenocarcinoma as observed in ThinPrep slides and to compare these features with those that have been described for conventional smears. STUDY DESIGN: Six cases of endocervical AIS and three cases of invasive adenocarcinoma were evaluated ...
Reeder C B - - 1999
Persistent polyclonal B-cell lymphocytosis with binucleate lymphocytes is a rare lymphoproliferative syndrome of uncertain cause that is strongly associated with HLA-DR7 positivity, cigarette smoking, and female sex. As yet, there is no explanation for the strong sex predilection. We report the third case of persistent polyclonal B-cell lymphocytosis in a ...
Smith M E - - 1999
The simultaneous involvement of the mucous membranes of the oral cavity and upper aerodigestive tract by lesions characterised clinically by an intensely erythematous, lobulated surface and histologically by a dense connective tissue infiltrate composed of non-neoplastic plasma cells may be called plasma cell mucositis. We present a review of the ...
Hinton D R - - 1999
OBJECTIVE: To describe the cytologic features of secretory meningioma on crush preparations. STUDY DESIGN: In five cases, the diagnosis of secretory meningioma was made and crush preparations were available. In each case, crush preparations were made at the time of intraoperative consultation from an open biopsy specimen or stereotactic biopsy. ...
Bader R S - - 1999
Multinucleate-cell angiohistiocytoma (MCAH) is a benign vascular proliferation of unknown etiology. Clinically, MCAH presents as grouped, erythematous, or violaceous papules on the extremities in older women. These lesions often resemble Kaposi's sarcoma. Histologic examination reveals characteristic bizarre-shaped, multinucleate giant cells, some of which contain three to six nuclei arranged in ...
McGregor D H - - 1999
The diagnosis of adenocarcinoid (mucinous/goblet cell carcinoid) is usually unexpected by both clinicians and pathologists. We report here the case of a 74-year-old man with gastric lymphoma (B-cell MALToma) diagnosed by endoscopy, who was found on exploratory laparotomy also to have extensive intraabdominal involvement by adenocarcinoid, arising from the ileum ...
Coman N - - 1999
The paper presents the ultrastructural modifications occurring in uterine cervix epithelium in 10 patients with clinical susceptibility of HPV infections. The presence of viral HPV particles was identified in 5 cases and in 1 case the concomitant presence of both HPV and HSV2 particles was detected. The maximum amount of ...
Kruithof E - - 1999
We report a case of polyarteritis nodosa with a clinical presentation mimicking polymyalgia rheumatica, as well as pathological findings of non-giant-cell arteritis on temporal artery biopsy with symptoms of jaw claudication. Although certain clinical syndromes have been attributed to specific types of systemic vasculitis, considerable overlap occurs. Obtaining tissue biopsy ...
Whitaker E G - - 1999
Multifocal Langerhans' cell histocytosis is a rare condition in adults. We present the case of a 31-year-old female who initially presented with a clinical appearance of acute mastoiditis. The patient ultimately had involvement of bilateral temporal bones, lungs, and hypothalamus. Treatment with methotrexate, steroids, and desmopressin acetate (DDAVP) resulted in ...
Brustmann H - - 1999
This study evaluated the expression of nm23 in curettage specimens from 63 cases of normal, hyperplastic and neoplastic endometrial tissues by immunohistochemistry. The histological diagnoses were as follows: normal proliferative (N = 5) or secretory (N = 5), simple hyperplasia (N = 11), complex hyperplasia (N = 9), atypical hyperplasia ...
Mai K T - - 1999
The purpose of the present study was to investigate the possible histogenetic relationship of renal cell carcinoma (RCC) and angiomyolipoma (AMYL) occurring in the same renal nodule by examining two cases of composite RCC and AMYL in patients without stigmata of tuberous sclerosis and by reviewing the medical literature of ...
Thompson K S - - 1999
Purpose. Epithelioid leiomyoblastomas comprise the majority of gastric sarcomas and are uncommon in other parts of the gastrointestinal tract. Diagnosis of this lesion by fine-needle aspiration cytology has been occasionally described in the literature. Two additional cases are herein reported.Subjects . A 66-year old male with an omental mass and ...
Foschini M P - - 1998
Two cases of hepatoid adenocarcinomas were studied with an in situ hybridization technique (ISH) using a RNA probe for human albumin mRNA. In case 1 the urinary bladder of a 67-year-old woman was affected; in case 2 the tumour was located in the gastric antrum of an 80-year-old woman. In ...
Nanduri V R - - 1998
BACKGROUND: Langerhans' cell histiocytosis, a rare condition caused by the proliferation of abnormal Langerhans' cells ('LCH cells') and an accompanying granulomatous infiltrate, can affect several organs including the ear. External and middle ear involvement are common with a reported incidence as high as 61%. The bony labyrinth is resistant to ...
Ioffe O B - - 1998
BACKGROUND: The various morphological groupings of endometrial pathology are often difficult to distinguish from each other. The endometrium is an actively proliferating tissue and there is an overlap in cell proliferation fraction (CPF) between benign proliferative endometrium (BPE) and endometrial carcinoma (EC). Apoptosis in benign cycling endometrium is related to ...
Shen D H - - 1998
OBJECTIVE: To evaluate the origin of pseudomyxoma peritonei (PMP) in Chinese women. METHODS: The clinicopathologic features of 15 cases of PMP were reviewed. Immunostaining using antibodies for CK7 and CK20 was performed in the ovarian, appendiceal and peritoneal lesions of these cases. RESULTS: Appendiceal pathology was documented in five cases, ...
Brilakis HS - - 1998
Diplopia may be a sign of giant cell arteritis (GCA). Polymyalgia rheumatica (PMR) is a systemic rheumatic inflammatory disease characterized by shoulder and hip girdle pain, and PMR can be associated in some patients with GCA. The authors report diplopia in two patients with treated PMR and biopsy-proven GCA, and ...
Kobayashi T K - - 1998
BACKGROUND: Granulomatous mastitis, a rare condition of unknown etiology, affects women of childbearing age and clinically simulates breast carcinoma. CASE: Granulomatous mastitis of the breast in a 32-year-old female was studied by fine needle aspiration cytology. Aspirated material was quite cellular and consisted of epithelioid histiocytes, lymphocytes, plasma cells, neutrophils ...
Imlay S P - - 1998
Parachordomas are rare cutaneous tumors that show virtually identical histologic findings to chordomas. Therefore, the major differential diagnosis in a case of parchordoma is metastatic chordoma. Parachordomas are benign neoplasms and most often develop on the extremities adjacent to tendons, synovium or osseous structures, as opposed to chordomas, which are ...
Milanezi M F - - 1998
AIMS: To evaluate the prevalence of pseudoangiomatous hyperplasia of mammary stroma in gynaecomastia and its immunohistochemical profile in this setting. METHODS: Eighty eight cases of gynaecomastia recovered from the files of the department of pathology, Botucatu School of Medicine from 1976 to 1996 were studied. In the cases associated with ...
Aranda F I - - 1998
Nodular fasciitis (NF) is a tumor-like condition composed of fibroblasts and myofibroblasts, usually located in the subcutaneous tissue of the extremities. Histologically, it can mimic a myogenic sarcoma because of its hypercellularity, brisk mitotic rate and the presence of actin. NF of the vulva is rare with only eleven cases ...
Sharma M C - - 1998
A 9-year-old male child had a IV ventricular medulloepithelioma of classical histology, showing tubulopapillary and undifferentiated areas. The unusual feature, however, was the presence of melanin pigmentation in the cells, which was further confirmed by electron microscopy. So far 28 cases of medulloepithelioma have been reported in the English literature. ...
Michal M - - 1997
Reported here are five cases of rare and hitherto unreported adenomatoid epithelial structures which occurred under the peritoneal surface of appendix vermiformis. These epithelial structures consisted of mature, small non-branching, cystically dilated adenomatoid spaces lined by one or two layers of flat cells without atypia or mitoses. In two cases ...
Mejia R - - 1997
Three cases of Langerhans' cell histiocytosis with unusual clinical and histopathologic features are described. The first two cases illustrate diagnostic pitfalls that underscore the importance of considering Langerhans' cell histiocytosis in the differential diagnosis of purpuric papular eruptions of the scalp and intertriginous areas, particularly in association with hypothalamic, pituitary, ...
Bocklage T - - 1997
The cytologic features of the tall cell variant (TCV) of papillary thyroid carcinoma may be confused with those of other thyroid neoplasms with different prognoses and treatment modalities. Elucidation of the cytomorphology of this variant would be useful in planning treatment for this fairly aggressive variant of papillary carcinoma. The ...
Currey J - - 1997
A patient with giant cell arteritis (GCA) who developed scalp necrosis (SN) is described and 23 other cases in the English language literature are reviewed. SN is rare and occurs in older patients of mean age 77 yr. Thirteen patients presented to dermatologists. Nineteen (79%) had other serious complications of ...
Datta C K - - 1997
This article presents a rare case of well-differentiated papillary villoglandular adenocarcima of the uterine cervix. This patient had vaginal bleeding and her disease was limited to the cervix. Since 1989, a total of 41 cases have been reported in the literature as a distinct entity. In the past, this tumor ...
Spraggs P D - - 1997
Giant cell reparative granuloma (GCRG) is a rare nonneoplastic proliferative lesion of unknown etiology. It most commonly occurs in the mandible, but also occurs in other bones of the facial skeleton and cranial vault. Two cases of GCRG arising from the maxilla are presented. Histological and radiological features, and the ...
Berney D M - - 1997
Angiolymphoid hyperplasia with eosinophilia (epithelioid haemangioma) is an uncommon but distinctive lesion seen principally in the skin. A case of severe gastrointestinal haemorrhage in a 63 year old male is reported, which necessitated a right hemicolectomy. A lobulated nodule was seen macroscopically that had the histological appearance of angiolymphoid hyperplasia ...
Oppenheimer J R - - 1997
OBJECTIVE: To assess pathologic findings of granulomatous prostatitis (GP) on needle biopsy. DESIGN: Ninety-four cases of granulomatous prostatitis were culled from 25,852 (incidence 0.36%) consecutive men who underwent needle biopsy; clinical correlations were obtained for 75. Cases were categorized as nonspecific (NSGP, 77.7%), infectious (IGP, 18.1%), or indeterminate (4.3%) granulomatous ...
Das D K - - 1997
OBJECTIVE: To evaluate the role of cytomorphologic features in the diagnosis and differential diagnosis of small round cell tumor (SRCT) of the abdomen and thorax. STUDY DESIGN: During a period of six years (1985-1990), ultrasound/ computed tomography-guided fine needle aspiration cytology was performed on thoracic and abdominal/ pelvic masses in ...
Gorisek B - - 1997
BACKGROUND: In the world literature, uterine carcinoma associated with paraneoplastic malignant acanthosis nigricans and tripe palms has been mentioned in two review articles. Endometrial adenocarcinoma associated with malignant acanthosis nigricans without tripe palms has been cited in three case reports, and endometrial adenocarcinoma associated with tripe palms without malignant acanthosis ...
Davies S C - - 1997
Blood transfusion can be life-saving in sickle cell disease. There is an increasing body of literature available to help define its place in this patient population. In this review, we have brought together the reported trials, case reports and our experience to discuss the role of transfusion now and in ...
Tuli S - - 1997
BACKGROUND: Lhermitte-Duclos disease (LDD) is a rare pathologic entity involving the cerebellum. The fundamental nature of the entity and its pathogenesis remain unknown, and considerable debate has centered on whether it represents a neoplastic, malformative or hamartomatous lesion. The cell or cells of origin remain incompletely defined. Previous reports of ...
Domanski H A - - 1997
OBJECTIVE: To characterize the cytomorphologic features of pilomatrixoma. STUDY DESIGN: Aspirate findings in nine cases of PMX were correlated with clinical data and subsequent histology. This relatively large volume of case material afforded an opportunity to test the cytologic criteria that have been proposed as diagnostic of pilomatrixoma in the ...
Andiran F - - 1997
Adenocarcinoma of ampulla of Vater causing obstructive jaundice in an 11-year-old boy is reported. He first underwent pylorus-preserving duodenectomy, which later necessitated classical Whipple operation because of the microscopical evidence of the disease beyond surgical margins. This child is the youngest case of adenocarcinoma of ampulla of Vater in the ...
Werner J A - - 1997
BACKGROUND: Primary manifestation of a giant cell tumor (GCT) in the larynx is exceedingly rare. Until now, only 17 cases have been reported in the literature. Characterization of a GCT can be difficult partly because of similarities with the giant cell subtype of malignant fibrous histiocytoma (MFH). METHODS: The case ...
Parashos P - - 1997
Apexification is a process/procedure well recognized and accepted by clinicians and researchers alike. Calcium hydroxide is most commonly used to induce an apical hard tissue barrier which may be composed of different tissues but its mechanism of action is still unknown. The epithelial cell rests of Malassez have been implicated ...
Ellis F H FH - - 1997
Two cases of a rare combination of conditions, achalasia and adenocarcinoma in Barrett's esophagus are reported. Cancer developed 26 years after the onset of gastroesophageal reflux in one and 30 years after esophagomyotomy in the other. Twenty-one cases of Barrett's esophagus and achalasia have now been reported; adenocarcinoma developed in ...
Karim M M - - 1997
Eccrine adenocarcinoma of the lacrimal sac region is described in a 48-year-old man. The case was first diagnosed as an adenocarcinoma and removed by dacryocystectomy, but unfortunately the neoplasm recurred after a period of 1 year. Examinations with periodic acid-Schiff (PAS) and several antibodies indicate that this is a hitherto ...
Daoud M S - - 1997
We report the case of a 54-year-old man with a ten-year history of a generalized papular eruption consistent with the diagnosis of indeterminate cell histiocytosis. The patient responded favorably to a course of treatment with 2-chlorodeoxyadenosine.
Dey P - - 1996
In this article, we have described the fine-needle aspiration biopsy (FNAB) of five cases of angioimmunoblastic lymphadenopathy (AILD). FNAB of these cases showed large number of capillary fragments, along with polymorphous population of cells consisting of plenty of immunoblasts, plasma cells, eosinophils, and mast cells. Two cases showed clusters of ...
Young R H - - 1996
Six florid examples of cystitis glandularis of intestinal type associated with focal mucin extravasation into the stroma are reported. Several of the cases caused major diagnostic difficulty with regard to their distinction from adenocarcinoma. Five patients had masses that simulated a bladder neoplasm. Patients ranged from 27 to 65 (average ...
Goldblum J R - - 1996
PROBLEM CONSIDERED: Giant cell fibroblastoma (GCF) is a rare mesenchymal neoplasm, which is classified as a fibrohistiocytic tumor of intermediate malignancy owing to its propensity for local recurrence, although metastasis has not been documented. Prior reports have linked GCF to dermatofibrosarcoma protuberans (DFSP), given overlapping clinical and histologic features. METHODS: ...
Hirohata M - - 1996
A 57-year-old woman presented with right-sided ptosis and diplopia. CT scans showed a tumor in the right cerebellopontine angle attached to the tentorium. Subtotal resection was conducted prior to local irradiation (20 Gy). Histological examination of the resected specimen indicated a diagnosis of plasma-cell granuloma. Diffuse thickening of the tentorium ...
Cleveland D B - - 1996
Three cases of Langerhans' cell histiocytosis (histiocytosis X) are reported in which the clinical presentations were (1) soft-tissue enlargements, (2) oral ulcerations, and (3) leukoplakia. Each case was without bone involvement at the time of diagnosis, and two patients were older than 60 years of age. Definitive diagnoses were aided ...
Lee J S - - 1996
BACKGROUND: Multinucleated giant cells of osteoclastlike appearance are seen in some anaplastic carcinomas, but only three cases in which the diagnosis was made by aspiration cytology are reported in the international medical literature. CASE: A 66-year-old female presented with a history of a palpable neck mass. The diagnosis of fine ...
Drew P A - - 1996
The nested variant of transitional cell carcinoma (TCC-NV) is a rare neoplasm; only eight cases have been described. This report reviews the clinicopathologic features of 16 additional examples. The cases were collected from consultations received during a 13-year period. In most instances, a consultation was sought because the histologic features ...
Sato S - - 1996
OBJECTIVE: To compare two endometrial cytologic sampling devices, the Uterobrush and Endocyte, for their clinical applicability. STUDY DESIGN: Specimen collection and comparison in 60 women. RESULTS: Collection of specimens with both devices succeeded in 100% of cases and was practically painless. The cells' appearance with the Endocyte tended to be ...
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