PURPOSE: Choroid Plexus papilloma is a rare intracranial neoplasm that is most commonly found in the trigone of the lateral ventricle in children or in the fourth ventricle in adult. Extraventricular extension of choroid plexus papilloma has been rarely reported within the cerebellopontine angle (CPA) cistern. Authors report two cases of choroid plexus papilloma in the posterior fossa seen on magnetic resonance imaging (MRI). MATERIALS AND METHODS: MRI findings of two cases of choroid plexus papilloma in posterior fossa were retrospectively reviewed. RESULTS: In the first case, the tumor was in the fourth ventricle and extended to the left CPA cistern via the foramen of Luschka. In the second case, the tumor presented as an expansile mass of the of fourth ventricle and right lateral recess. Multiple signal voids of low intensity due to prominent feeding vessels and calcifications within the tumors were noted. CONCLUSION: This report demonstrates MR findings of choroid plexus papilloma in the posterior fossa with the brief review of the literatures.
Adult ; Brain Neoplasms ; Cerebellopontine Angle ; Child ; Choroid Plexus* ; Choroid* ; Fourth Ventricle ; Humans ; Lateral Ventricles ; Magnetic Resonance Imaging ; Papilloma, Choroid Plexus* ; Retrospective Studies

No abstract available.
Enterocolitis, Neutropenic* ; Leukemia*

A finite element analysis has been utilized to analyze stress and strain fields and design a new configuration in orthopedics and implant dentistry. Load transfer and stress analysis at implant bone interface are important factors from treatment planning to long term success. Bone configuration and quality are different according to anatomy of expecting implantation site. The purpose of this study was to compare the stress distribution in maxilla and mandible according to implant length and bone engagement types. A three dimensional axi-symmetric implant model(Nobel Biocare, Gothenburg, Sweden) with surrounding cortical and cancellous bone were designed to analyzed the effects of bone engagement and implant length on stress distribution ANSYS 5.5 finite element program was utilized as an interpreting tool. Three cases of unicortical anchorage model with 7, 10, 13mm length and four cases of bicortical anchorage model with 5, 7, 10 and 13mm lenght were compared both maxillary and mandibular single implant situatiion. Within the limits of study, following conclusions were drawn. 1. There is difference in stress distribution according to cortical and cancellous bone thickness and shape. 2. Maximum stress was shown at the top of cortical bone area regardless of bone engagement types. 3. Bicortical engagement showed less stress accumulation when compared to unicortical case overall. 4. Longer the implant fixture length, less the stress on cortical bone area, however there is no difference in mandibular bicortical engagement case.
Dentistry ; Finite Element Analysis* ; Mandible ; Maxilla ; Orthopedics

No abstract available.

Duodenal diaphragm is a rare congenital anomaly among the congenital duodenal obstructions. Its symptom and sign usually appear since birth if obstruction is complete. The clinical manifestations of incompletely obstructive duodenal diaphragm are intermittent vomiting, abdominal pain and poor weight gain. Diagnosis may be delayed in this case. Authors experienced a case of incomplete duodenal diaphragm with a central hole. A 29 months old girl presented failure to thrive, intermittent episodes of bloating, abdominal discomfort and occasional vomiting. The patient vomited every 10-14 days, then the abdominal pain and distention were relieved. She overate for about 10 days until the next projectile vomiting. The vomitus frequently contained food ingested several days previously. Plain x-ray films of abdomen showed marked gastric distention. Upper gastrointestinal series revealed marked distention of the duodenum with windsock configuration and radiolucent line at the third portion of the duodenum. On gastroscopic examination, gastric bezoar impacting the pyloric canal and antrum was noted. At operation, we found mucosal membrane in the third portion of the duodenum and bezoar(Chinese cabbage) above the membrane. Side-to-side duodeno-jejunostomy was performed and bezoar was removed. She was discharged on the 13th postoperative day without any complication.
Abdomen ; Abdominal Pain ; Bezoars ; Bulimia* ; Child, Preschool ; Diagnosis ; Diaphragm* ; Duodenal Obstruction ; Duodenum ; Failure to Thrive ; Female ; Humans ; Membranes ; Parturition ; Vomiting ; Weight Gain ; X-Ray Film

Hepatocellular carcinoma represents approximately 90% of the primary liver cancers. Recently, its incidence tends to be increased. Thirsty seven cases from 1986 to 1991 diagnosed as hepatocellular carcinoma by resection were analyzed to know their histopathologic feature and related clinical findings. The average age at the time of resection was 53.1 years, with frequent occurrence in third and fourth decades. Microscopically, the trabecular type was the most frequent growth pattern (35.1%) and classic hepatocyte-like cell type was the most frequent cell type (75.7%). The tumors are mainly moderately differentiated and frequently associated with liver cirrhosis. In comparison of cytological differentiation with liver cirrhosis, there was a tendency for well-differentiated tumors to arise in cirrhotic livers more often than poorly differentiated tumors, and the tendency was statistically significant. But differentiation and tumor size did not show significant correlation. Also statistically significant correlations were not observed between the level of alpha-fetoprotein and tumor size, and between the level of alpha-fetoprotein and differentiation.
alpha-Fetoproteins ; Carcinoma, Hepatocellular* ; Incidence ; Liver ; Liver Cirrhosis ; Liver Neoplasms ; Pathology

Although acquired ichthyosis has been associated with a number of systemic illnesses, an association with sarcoidosis has rarely been reported. We report a patient with aquired ichthyosis of the lower and upper extrimities whose diagnosis of cutaneous sarcoidosis was confirmed by histologic examination. Systemic involvement in the patient revealed occular, pulmonary and nerve disease. A diagnosis of sarcoidosis must be considered when a patient presents with acquired ichthyosis.
Diagnosis ; Humans ; Ichthyosis ; Sarcoidosis*

No abstract available.
Beckwith-Wiedemann Syndrome*

We describe a case of eosinophilic pustular folliculitis in a 1-month-old Korean male infant. The patient was suffering from erythematous papules and pustules affecting the scalp, trunk, and extremities, detected at birth. The flare was accompanied by leukocytosis and eosinophila. Histopathology revealed folliculitis with a predominant eosinophilic infiltrate. Lesions showed partial response to topical steroid and disappeared in four weeks. Three months after the resolution of the lesions, he presented a similar clinical picture as the previous episode.
Eosinophils* ; Extremities ; Folliculitis* ; Humans ; Infant ; Infant, Newborn* ; Leukocytosis ; Male ; Parturition ; Scalp

A 28-year-old female devei,oped five rice-sized erythematous telaniectatic solid papules of her left side of cheek and numerous light brownish flat papules of her face two years before visiting our department of dermatology. Biopsy results of the erythematous papule vere dermal infiltration by well-differentiated, however, somewhat atypical and varying sized plasma cells involving epidermis, and the flat papule was that of verwca plana. Bone marrow aspirate was essentially normal. Primary cutaneous plasmacytoma is a rare disease. A significant proportion of patients with this ent on to develop systemic disease with a poor prognosis. Our patient was not treatead, bit only excised partially for biopsy. All skin lesions involuted two years later spontaneously and rema ns well until now six years later without recurring.
Adult ; Biopsy ; Bone Marrow ; Cheek ; Dermatology ; Epidermis ; Female ; Humans ; Plasma Cells ; Plasmacytoma* ; Prognosis ; Rare Diseases ; Skin