Cholesterol granuloma is thought to arise as the consequence of obstruction of the air cell system. Once the ventilation is blocked, negative pressure builds with mucosal hemorrhage and blood extravasation into the air cell system. And the catabolism of blood releases cholesterol, hemosiderin, lipids and fibrin. It is the foreign body reaction of these products that leads to cholesterol granuloma and cholesterol granuloma cyst formation. The cholesterol granuloma and cholesterol granuloma cyst may develop in any portion of the pneumatic system of the temporal bone and small lesions are commonly encountered in the middle ear and mastoid air cells. But, huge cholesterol granuloma cyst is a unusual lesion and cholesterol granuloma cyst with extensive temporal bone destruction and intracranial extension has been rarely reported. Recently we experienced a case of huge cholesterol granuloma cyst with intracranial extension in a 38-year-old female, and report this case with review of literatures.
Adult ; Cholesterol* ; Ear, Middle ; Female ; Fibrin ; Foreign-Body Reaction ; Granuloma* ; Hemorrhage ; Hemosiderin ; Humans ; Mastoid ; Metabolism ; Temporal Bone* ; Ventilation

BACKGROUND: Flatfoot deformity is a lever arm disease that incurs kinetic inefficiency during gait. The purpose of this study was to measure the degree of kinetic inefficiency by comparing the gait analysis data of a flatfoot group with a normal control group. METHODS: The patient group consisted of 26 children (21 males and 5 females) with symptomatic flatfoot. They were examined with gait analysis between May 2005 and February 2014. Exclusion criteria were patients with secondary flatfoot caused by neuromuscular disorders, tarsal coalition, vertical talus, or others. Patients' mean age was 9.5 years (range, 7 to 13 years). The gait analysis data of the study group and the normal control group were compared. RESULTS: The mean vertical ground reaction force (GRF) in the push-off phase was 0.99 for the patient group and 1.15 for the control group (p < 0.05). The mean ankle moment in the sagittal plane during the push-off phase was 0.89 for the patient group and 1.27 for the control group (p < 0.05). The mean ankle power in the sagittal plane during the push-off phase was 1.38 for the patient group and 2.52 for the control group (p < 0.05). The aforementioned results show that patients with pes planovalgus had a reduction of moment, power, and GRF in the push-off phase during gait. CONCLUSIONS: Symptomatic flatfeet had a moment inefficiency of 30% and power inefficiency of 45% during gait compared to feet with preserved medial longitudinal arches.
Ankle ; Arm ; Child* ; Congenital Abnormalities ; Flatfoot* ; Foot ; Gait* ; Humans ; Kinetics ; Male ; Observational Study* ; Talus

PURPOSE: The purpose of this study is to compare the two prosthesis that used for total ankle arthroplasty. MATERIALS AND METHODS: From Sept. 2003 to Jun 2006, 13 patients and 14 ankles that could be follow up more than 1 months. Semiconstrained type (Group I, 7 cases) and Unconstrained type (Group II, 7 cases) were used for total ankle arthroplasty. Mean age was 63.2 year-old, 12 ankles are men and 2 ankles were women. Mean follow up periods were 29 months. The criteria to compare the clinical result were postoperative range of motion, AOFAS score and residual bone stock of medial malleolus. RESULTS: Postoperative range of motion of group I was 43.6+/-9.4 degrees and of group II was 50.7+/-7.3 degrees (p=0.115). Postoperative AOFAS score of group I was 77.1+/-13.0 points and of group II was 86.0+/-5.7 points (p=0.094). Resected bone stock in medial malleolus of group I was 10.7+/-2.5 mm and of group II was 5.1+/-1.2 mm (p=0.003). Total number of complication in our study was 9 cases. 3 cases were a malleolar fracture, two occurred at intra-operation, the other at follow-up period. Re-operation was done in 6 cases, 3 cases were calcaneal corrective osteotomy, 2 cases were resection of a heterotopic bone and one case was pedicular flap operation for skin problem. CONCLUSION: In our hospital, mobile bearing type prosthesis shows good result than a semiconstrained type in respect of residual bone stock in medial malleolus. Postoperative range of motion and AOFAS score between two groups shows no significant difference. But small number of patients and short term follow up period is a defect in our study, afterward more population and long term follow up period are needed.
Ankle* ; Arthroplasty* ; Female ; Follow-Up Studies* ; Humans ; Male ; Mobile Health Units ; Osteotomy ; Prostheses and Implants ; Range of Motion, Articular ; Skin

As extra-mammary Paget's disease is rare and usually diagnosed at early stage when it is highly curable with surgical resection, it is much rarer to see patients with recurrent metastatic disease. Thrombotic thrombocytopenic purpura in patients with metastatic solid cancer is also a rare disease and may result from bone marrow metastasis or bone marrow necrosis. For the latter, the majority of cases are not eligible for systemic chemotherapy for rapid disease progression and poor performance status. Herein, authors report a patient with thrombotic thrombocytopenic purpura associated with bone marrow necrosis complicating extra-mammary Paget's disease who was successfully treated with docetaxel and carboplatin combination chemotherapy.
Bone Marrow* ; Carboplatin ; Disease Progression ; Drug Therapy ; Drug Therapy, Combination ; Humans ; Necrosis* ; Neoplasm Metastasis ; Paget Disease, Extramammary* ; Purpura, Thrombotic Thrombocytopenic* ; Rare Diseases

OBJECTIVE: Chronic subdural hematoma (CSDH) is known to have a significant recurrence rate. There are different criteria defining the recurrence of CSDH. We evaluated the postoperative course of CSDH and tried to propose the reasonable criteria of recurrence. METHODS: We retrospectively examined the medical records and pre- and postoperative CT scans of 149 consecutive patients who underwent surgery from January 2005 to December 2009. Diagnosis was confirmed by CT scanning or MRI. The postoperative courses were either resolved or recurrent. The resolved CSDH was one of the three types; early resolution, delayed resolution, or late resolution. The recurrent CSDH was one of the four types; recurrence without resolution, early recurrence after resolution, late recurrence after resolution, or recurrent-and-resolved type. RESULTS: The CSDH was resolved within 30 days after surgery in 58 (39%) patients, between 1 to 3 months in 62 (42%), and after 3 months in 11 (7%) patients. The CSDH was recurred in 18 (12%) patients. Late resolution or recurrence was more common in the aged. The recurrent hematoma was seen on the same side in 11 patients, on the different side in 7 patients. Recurrence was significantly more common in the thick hematomas. CONCLUSION: For a working criteria of the recurrence of CSDH, we propose the early recurrence as return of symptoms or reaccumulation of the hematoma after a surgery within 3 months regardless of the location, amount or repeated operations. The late recurrence can be defined as reappearance or enlargement of a liquefied hematoma within the cranial cavity surrounded by the membranes or persistent CSDH beyond 3 months after surgery.
Aged ; Craniocerebral Trauma ; Hematoma ; Hematoma, Subdural, Chronic ; Humans ; Medical Records ; Membranes ; Recurrence ; Retrospective Studies ; Risk Factors

PURPOSE: To evaluate the functional and cosmetic results of trichiasis treatment between the argon laser epilation(Group A) and tarsotomy(Group B). METHODS: Twenty-seven patients with diffuse lower lid trichiasis, whose post-treatment follow-up periods were longer than 3 months, were reviewed retrospectively. Functionally, 14 of 16 patients(89.6%) in group A were satisfied, whereas 9 of 11 patients(84.0%) were in group B. And cosmetically, 10 of 16 patients(62.9%) in group A were satisfied, whereas 8 of 11 patients(79.0%) were in group B. The functional results were similar between the two groups(p>0.05), but the cosmetic results were better in group B than in group A(p<0.05) CONCLUSIONS: The inferior tarsotomy appears to be an effective surgical procedure in patients with diffuse lower lid trichiasis.
Argon ; Follow-Up Studies ; Humans ; Retrospective Studies ; Trichiasis*

HHE syndrome is characterized by hemiconvulsive seizure, hemiplegia and epilepsy occurring in sequence. Recently, cytotoxic edematous swelling of one hemisphere was presented as the pathogenesis because high signal intensity was shown in the diffusion image but no remarkable findings were noticed in the FLAIR image and T2WI in two cases presented by Freeman etc. The clinical course and the radiologic findings in our patient was the same as the above description other than sparing paracentral lobule. This reinforces the assumption that the brain damage in HHE syndrome is not induced by vascular hypoxic damage but by selectively cytotoxic damage through immunologic pathogenesis. Therefore, diffusion image is needed for the diagnosis of HHE syndrome in a febrile convulsive child. Also, early adequate treatment is required such as immunosuppressive treatment with high dose steroid and intravenous immunoglobulin. Furthermore, a proper measure to reduce cerebral edema is essential for the prevention of neurologic sequalae and deterioration to epilepsy.
Brain ; Brain Edema ; Child ; Diffusion ; Epilepsy ; Follow-Up Studies ; Hemiplegia ; Humans ; Immunoglobulins ; Magnetic Resonance Imaging ; Magnetic Resonance Spectroscopy ; Magnetics ; Magnets ; Seizures

OBJECTIVES: The antimicrobial activity of silver nanoparticles has resulted in their widespread use in many consumer products. Yet, despite their many advantages, it is also important to determine whether silver nanoparticles may represent a hazard to the environment and human health. METHODS: Thus, to evaluate the genotoxic potential of silver nanoparticles, in vivo genotoxicity testing (OECD 474, in vivo micronuclei test) was conducted after exposing male and female Sprague-Dawley rats to silver nanoparticles by inhalation for 90 days according to OECD test guideline 413 (Subchronic Inhalation Toxicity: 90 Day Study) with a good laboratory practice system. The rats were exposed to silver nanoparticles (18 nm diameter) at concentrations of 0.7 x 10(6) particles/cm3 (low dose), 1.4 x 10(6) particles/cm3 (middle dose), and 2.9 x 10(6) particles/cm3 (high dose) for 6 hr/day in an inhalation chamber for 90 days. The rats were killed 24 hr after the last administration, then the femurs were removed and the bone marrow collected and evaluated for micronucleus induction. RESULTS: There were no statistically significant differences in the micronucleated polychromatic erythrocytes or in the ratio of polychromatic erythrocytes among the total erythrocytes after silver nanoparticle exposure when compared with the control. CONCLUSION: The present results suggest that exposure to silver nanoparticles by inhalation for 90 days does not induce genetic toxicity in male and female rat bone marrow in vivo.
Animals ; Bone Marrow ; Erythrocytes ; Female ; Femur ; Humans ; Inhalation ; Inhalation Exposure ; Male ; Mutagenicity Tests ; Nanoparticles ; Rats ; Rats, Sprague-Dawley ; Silver

Angioedema is a well-demarcated localized edema involving the deeper layers of the skin, including the subcutaneous tissue. Angioedema occurs with Cl esterase inhibitor (Cl INH) deficiency that may be inborn as an autosomal dominant characteristic or may be acquired. Acquired angioedema (AAE) is a rare disorder characterized by adult onset and lack of evidence of inheritance of the disease. Two types of AAE are known today: type I in which there are lowering of functional Cl INH, an underlying disease such as a B-cell disease, and no detectable autoantibodies to Cl INH, type II with anti Cl INH autoantibodies in the circulation without detectable underlying disease and with depressed functional Cl INH levels. We experienced a case of angioedema in a 29-year old man. He had no family history of angioedema and laboratory data showed depressed Cl-INH levels. We diagnosed the case as acquired type of angioedema. Even though we could not measure anti-Cl INH auto-antibodies, we identified the case as type II because there was no evidence of underlying disease.
Adult ; Angioedema* ; Angioedemas, Hereditary* ; Autoantibodies ; B-Lymphocytes ; Complement C1 Inhibitor Protein* ; Complement C1s* ; Edema ; Humans ; Skin ; Subcutaneous Tissue ; Wills