1/337. Peripheral lamellar keratoplasty for corneoscleral cyst: three case reports.PURPOSE: To examine whether peripheral lamellar keratoplasty (LKP) using preserved cornea was effective for the treatment of corneoscleral cysts. methods: Three patients with corneoscleral cysts underwent peripheral lamellar keratoplasty. Two patients had no history of trauma or ocular surgery and were considered to have congenital cysts. The other patient had a history of strabismus surgery that had been performed 7 years previously. The anterior wall of the cysts was removed by trephination, and the epithelial membrane lining the posterior wall was peeled off. Lamellar corneal buttons obtained from preserved corneas then were put in place and secured with 8-10 interrupted sutures. In one case, because the cyst was large and extended to the pupillary axis, peripheral LKP was performed for removal of the scleral and peripheral corneal cyst, and the inner wall of the central corneal cyst was removed with vigorous irrigation and a spatula. RESULTS: Histologic examination showed that all of the cysts were lined with nonkeratinizing epithelial cells. In all three cases, cysts have not reformed after a 1-5-year follow-up. CONCLUSIONS: The cysts were lined in epithelial cells, and removal of these epithelial cells was considered to be important for the prevention of recurrence. Peripheral LKP is effective for the treatment of corneoscleral cysts, since this procedure removes displaced epithelial cells and reconstructs the thin part of the cornea and sclera.- - - - - - - - - - ranking = 1keywords = membrane (Clic here for more details about this article) |
2/337. Cutaneous ciliated cyst of the right lower leg.A 23-year-old Japanese woman with a cutaneous ciliated cyst on her right lower leg is reported. A subcutaneous cyst, measuring 2.5 cm in diameter with papillary projections into the lumen, was lined with ciliated cuboidal to columnar epithelia with partial stratification, histologically. These lining cells did not produce mucin. Immunohistochemically, the ciliated lining cells of the cyst were diffusely positive to epithelial membrane antigen and cytokeratin. In addition, positive immunoreaction with anti-desmin monoclonal antibody was observed in the body of the cilia. Less than 10% of the epithelial cells revealed positive immunoreaction to S-100 protein and estrogen receptor.- - - - - - - - - - ranking = 1keywords = membrane (Clic here for more details about this article) |
3/337. Papillary cystadenoma: a rare tumor of the minor salivary glands.Papillary cystadenoma of the minor salivary glands is a rare benign neoplasm that clinically resembles mucous cysts. Characteristic histological features are diagnostic. However, salivary gland histology is particularly difficult to interpret. Primarily, as further clinical and histological differential diagnoses have to take into account the well-differentiated cystic mucoepidermoid carcinoma and the papillary cystic type of acinic cell carcinoma, both malignant neoplasms of the salivary glands. We report on a 39 year old female with a bluish cystic lesion at the buccal mucosa, which occurred 14 years after the excision of a similar appearing, histologically proven mucous retention cyst at the same location. The histology of this tumor, however, revealed a papillary cystadenoma. Although rare, benign and malignant salivary gland neoplasms occur in minor salivary glands, and are clinically indistinguishable from mucous retention cysts. The dermatologist should be familiar with these differential diagnoses, since different therapeutic consequences result from an early diagnosis obtained by excision and histological examination of oral cystic tumors.- - - - - - - - - - ranking = 3.7366096918104keywords = mucosa (Clic here for more details about this article) |
4/337. Bilateral congenital oral mucous extravasation cysts.This report documents the bilateral presentation of oral mucous extravasation cysts on the left mucobuccal fold and right buccal mucosa of a neonate. The lesions were noted at birth and subsequently enlarged to the point that they interfered with eating. The left lesion ruptured but persisted as an exophytic fibrotic mass. Both lesions were surgically removed at eight months and the diagnosis was confirmed by histopathologic examination. Post-operative follow-up after nine months shows no recurrence. The presentation and diagnostic considerations are discussed.- - - - - - - - - - ranking = 3.7366096918104keywords = mucosa (Clic here for more details about this article) |
5/337. Demonstration of communication between alveolus and interstitium in persistent interstitial pulmonary emphysema: case report.Persistent interstitial pulmonary emphysema (PIPE) is an uncommon complication of premature infants suffering from hyaline membrane disease who have been treated with mechanical ventilation. The presumed mechanism for the development of the disease is via a break in the bronchioalveolar system that allows air to escape into the interstitium. We report a case of a 9-week-old child who developed the localized form of the disease and underwent a lobectomy. Immunohistochemical stains helped to demonstrate the communication between the airway system and interstitium. This report strengthens the theory that the disease develops from airway rupture at the alveolar level.- - - - - - - - - - ranking = 1keywords = membrane (Clic here for more details about this article) |
6/337. Regional proliferation of HMB-45-positive clear cells of the lung with lymphangioleiomyomatosislike distribution, replacing the lobes with multiple cysts and a nodule.The authors report a case of a localized lesion of the lung presenting as multiple cysts and as a tumor in the right upper and middle lobes, consisting of a diffuse proliferation of clear cells with intralysosomal glycogen granules and human melanin black (HMB)-45 immunoreactivity. A 33-year-old woman complained of dyspnea because of the enlargement of bullae in the right upper and middle lung fields without stigmata of tuberous sclerosis. Resection showed multiple, various-size air-filled cysts and a tumor. The cysts in the resected lungs were reminiscent of lymphangioleiomyomatosis (LAM), accompanied by the diffuse proliferation of clear cells in the interstitium. The tumor, 1.8 cm in diameter, resembled a clear cell tumor of the lung (CCTL) and showed proliferation of clear cells with sinusoidlike vascular spaces. Both forms of proliferation were continuous spatially, and both constituent cells showed diffuse HMB-45 immunoreactivity. The cells that comprised a nodule revealed ultrastructurally abundant cytoplasmic glycogen, which was in the form of free and membrane-bound glycogen granules. This case may represent a particular pulmonary lesion consisting of CCTL-LAM hybrid cells, which share the cytologic features with CCTL cells on one hand, and the proliferative pattern and potential with LAM cells on the other.- - - - - - - - - - ranking = 1keywords = membrane (Clic here for more details about this article) |
7/337. Endometrial carcinoma presenting as hematometra mimicking a large pelvic cyst.Large pelvic cysts are commonly seen in gynecologic practice; their heterogeneous origin is reflected in their pleomorphic clinical features. We report the case of a 64-year-old multiparous postmenopausal woman with an unusual manifestation of endometrial adenocarcinoma that presented as hematometra mimicking a large pelvic cyst. In this case, hematometra was well demonstrated by transabdominal sonography, but transvaginal sonography allowed better visualization of the endometrial lining and suggested the correct diagnosis of endometrial cancer. Abnormal vaginal bleeding or hematometra in postmenopausal women should lead to assessment of the endometrial mucosa. Transvaginal sonography can be used to visualize neoplastic lesions in the endometrium when hematometra is detected through transabdominal sonography.- - - - - - - - - - ranking = 3.7366096918104keywords = mucosa (Clic here for more details about this article) |
8/337. Pyelo-ureteritis cystica associated with a urinary tract infection due to a coagulase-negative staphylococcus.A young female presenting with a history suggestive of renal colic was found by intravenous pyelography to have Pyeloureteritis Cystica. In association with this condition she had a urinary tract infection due to a coagulase-negative staphylococcus. Following a two week course of appropriate antibiotic therapy, her urine became sterile and repeat pyelography revealed no abnormality.- - - - - - - - - - ranking = 3.9818936482873keywords = propria (Clic here for more details about this article) |
9/337. Epithelial splenic cysts in an intrapancreatic accessory spleen and spleen.A rare case of cysts simultaneously occurring in the intrapancreatic accessory spleen and spleen in a 49-year-old female is reported. The patient underwent distal pancreatomy for a cystic tumor of the pancreas, and a splenectomy. A multilocular cyst (4.3 x 2.6 cm) in an accessory spleen at the pancreas tail, and a solitary cyst (1.2 x 0.9 cm) of the spleen were found. The cyst in the intrapancreatic accessory spleen was lined by non-keratinizing stratified squamous epithelium, and the spleen cyst by a single layer of flat epithelium; these lining cells were positive for alcian blue stain and periodic acid-schiff reaction, and were immunohistochemically positive for cytokeratin, HBME-1 and Sialyl-Tn. Epithelial membrane antigen, carcinoembryonic antigen and CA19-9 were positive in the accessory spleen cyst but were negative in the spleen cyst. An electron microscopic examination of the flat epithelium of the spleen cyst revealed numerous microvilli on the surface, cytoplasmic microfilaments, and a number of tight junctions between adjacent cells. These features suggested that the two cysts differ in nature, and origin; the accessory spleen cyst may be an embryonic inclusion of the pancreas duct while the spleen cyst may be an inclusion cyst of the mesothelium.- - - - - - - - - - ranking = 1keywords = membrane (Clic here for more details about this article) |
10/337. Diffuse submucosal cysts of the stomach: report of two cases in association with development of multiple gastric cancers during endoscopic follow up.BACKGROUND: Diffuse submucosal cysts of the stomach have been suggested as a predisposing condition for the development of gastric cancer, especially multiple cancers. We report here two cases of diffuse submucosal cysts of the stomach associated with multiple gastric cancers which were detected during endoscopic follow-up. methods AND RESULTS: The first patient was a 75-year-old man and the second patient was a 72-year-old man. In the first case, we performed an endoscopic examination every year and detected an advanced cancer and two early cancers on the fifth year of the follow up. Because one of these cancers was advanced, we examined the second patient endoscopically every six months. In this patient, we detected two early cancers after 1.5 years follow up. CONCLUSIONS: We suggest that patients with this disorder should be examined regularly by endoscopy for the detection of gastric cancer, preferably every six months.- - - - - - - - - - ranking = 22.419658150863keywords = mucosa (Clic here for more details about this article) |
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