Most insects including the honeybee cause erythema and edema at the site of a sting in non-allergic individuals. This reaction usually resolves within a few days. However, in certain cases, the persistence of inciting materials in the cutaneous tissue may promote a local inflammatory foreign body reaction. Localized nodular lesions were seen in our two patients and erythemstous patches were present in one patient due to rarely encountered complications induced by retained sting materials. In these cases histopathology showed multiple foci of foreign body granuloma containing yellow refraetile material in the center surrounded by histiocytes and foreign body giant cells. The granulomatous skin lesions in these patients were treated with intralesional injections of triamcinolone acetonide and partial excisions of the nodular masses were performed.
Bites and Stings ; Edema ; Erythema ; Foreign-Body Reaction ; Giant Cells, Foreign-Body ; Granuloma* ; Granuloma, Foreign-Body ; Histiocytes ; Humans ; Injections, Intralesional ; Insects ; Skin ; Triamcinolone Acetonide

BACKGROUND: The differentiation of syphilids from other skin decreases is frequently difficult due to considerable variations of clinical and histologic pattern. The most common histologic changes in secondary syphilis are swelling & proliferation of endothelial cells and the presence of a perivascular infiltrate containing plasmia cells. But often, these findings are absert or inconspicuous. OBJECTIVE: We examined the histopathologic findings of secondary syphilis in relation to the clinical types of the skin lesion. MEHTODS: 36 biopsy specimens from twenty-nine serologically and clinically confirmed cases of secondary syphilis (15 macules, 8 papules, 2 condylomata latas and 11 papulosquamous lesions) were examined. RESULTS: The histopath,ologic findings of secondary syphilis showed comparative differences according to the clinical types of the skin lesion. The plasms cell infltrates were absent or sparse in 14 csses(39%) and the plasma cell infiltration was significantly correhted with the age of skin lesions(p=0.02197). Vascular changes were seen in 32 cases (89%), but the incidence of endothelial proliferation was less(25%). CONCLUSION: This study demonstrates the histopathologic findirigs of secondary syphilis in accordance to the clinical morphology of the eruption and thus, help to differentiate syphilids from other skin diseases.
Biopsy ; Endothelial Cells ; Incidence ; Plasma Cells ; Skin ; Skin Diseases ; Syphilis ; Syphilis, Cutaneous*

OBJECTIVE: To determine the characteristic pattern of information processing in the children with specific language impairment (SLI) using the Kaufman-Assessment Battery (K-ABC) for children. METHOD: Thirty patients were responded to K-ABC. Twenty-three of them were diagnosed as SLI without any abnormalities in other developmental areas, visual or auditory system. Seven patients showed language delay with other developmental abnormalities. Mean chronological age of SLI patients was 61.0 months. Patterns of information processing was measured using K-ABC. Sequential processing, simultaneous processing, mental processing, and achievement scales were obtained and compared between two groups. RESULTS: In SLI patients, sequential processing, simultaneous processing, mental processing, and achievement scales were 32.9+/-34.2, 54.3+/-26.9, 42.5+/-31.1, and 33.8+/-28.7, respectively. The SLI patients showed significantly poor scales in sequential than in simultaneous processing (p<0.01). CONCLUSION: The patients with SLI exhibited significant deficits in sequential processing, whereas simultaneous processing was better than that of the other group in this study. This characteristics of SLI patients will be useful for understanding and establishing proper therapeutic strategies for these patients.
Automatic Data Processing* ; Child* ; Humans ; Language Development Disorders ; Weights and Measures

Pigmented lesions of palmar and plantar skin may cause diagnostic problems, because some features of benign lesions in these sites may raise the suspicion of melanoma if considered alone. Transepidermal elimlnation is a mechanism by which a substance is eliminated through the epidermis, and it is apt to be confused with a feature of melanoma that tumor cells are located at all layers of the epidermis. We report a case of transepidermal elimination of nevus cells in acral letiginous nevus which needs a differential dignosis of melanoma.
Epidermis ; Melanoma ; Nevus* ; Skin

Lichen aureus is a variant of pigmented purpuric lichenoid dermatitis. The skin lesions usually appear asymptomatic rusty, copper, or orange colored roundish lichenoid erythematous-purpuric papules and patches on the lower extremities. Histologically, the epidermis shows minimal changes, with a dense lymphohistiocytic infiltrate observed in the superficial derrnis, typically distributed in a band-like fashion. The typical lesion is a single patch localized on the lower extremity. We report a rare case of segmental lichen aureus localized on the right lower extremity.
Citrus sinensis ; Copper ; Dermatitis ; Epidermis ; Lichens* ; Lower Extremity ; Skin

We describe the case of a 45-year-old woman who had self-regressing livedo reticularis on the lower extremities. Examination of a biopsy specimen from the mottled area revealed myxomatous emboli in the deep dermal arterioles. Echocardiography showed a myxoma in the left atrium. After the tumor was surgically excised, the patient had no further evidence of the disorders during the 3-year period of follow-up. Livedo reticularis caused by an peripheral arterial embolism, which in turn was caused by the tumor fragments in our patient with left atrial myxoma, is considered to be unusual.
Arterioles ; Biopsy ; Echocardiography ; Embolism ; Female ; Follow-Up Studies ; Heart Atria ; Humans ; Livedo Reticularis* ; Lower Extremity ; Middle Aged ; Myxoma*

PURPOSE: In this study a system dynamics methodology was used to identify correlation and nonlinear feedback structure among factors affecting unplanned extubation (UE) of ICU patients and to construct and verify a simulation model. METHODS: Factors affecting UE were identified through a theoretical background established by reviewing literature and preceding studies and referencing various statistical data. Related variables were decided through verification of content validity by an expert group. A causal loop diagram (CLD) was made based on the variables. Stock & Flow modeling using Vensim PLE Plus Version 6.0b was performed to establish a model for UE. RESULTS: Based on the literature review and expert verification, 18 variables associated with UE were identified and CLD was prepared. From the prepared CLD, a model was developed by converting to the Stock & Flow Diagram. Results of the simulation showed that patient stress, patient in an agitated state, restraint application, patient movability, and individual intensive nursing were variables giving the greatest effect to UE probability. To verify agreement of the UE model with real situations, simulation with 5 cases was performed. Equation check and sensitivity analysis on TIME STEP were executed to validate model integrity. CONCLUSION: Results show that identification of a proper model enables prediction of UE probability. This prediction allows for adjustment of related factors, and provides basic data do develop nursing interventions to decrease UE.
Adult ; Airway Extubation/*psychology ; Female ; Humans ; Intensive Care Units ; Intubation, Intratracheal ; Male ; Middle Aged ; *Models, Theoretical ; Nonlinear Dynamics ; Risk Factors

Trichoadenoma is a rare cutaneous tumor that was first described by Nikolowski in 1958. It usually occurs as a single tumor on the face and its size varies from 3 to 50mm in diameter. It may arise any time during adult life. This tumor is less mature than trichofolliculoma and more differentiated than trichoepithelioma, and it is considered as a benign tumor with differentiation toward the infundibular portion of the pilosebaceous canal. In this report, we describe a 61-year-old women who developed trichoadenoma on the left shoulder of 3 years duration. The lesion was asymptomatic and had grown slowly. Histopathological findings showed numurous horn cysts with central keratinous material and solid tumor islands reaching to the deep dermis. Immunohistochemical studies showed negative findings for eccrine differentiation.
Adult ; Animals ; Dermis ; Female ; Horns ; Humans ; Islands ; Middle Aged ; Shoulder

PURPOSE: The purpose of this study was to develop a system dynamics model for adolescent obesity in Korea that could be used for obesity policy analysis. METHODS: On the basis of the casual loop diagram, a model was developed by converting to stock and flow diagram. The Vensim DSS 5.0 program was used in the model development. We simulated method of moments to the calibration of this model with data from The Korea Youth Risk Behavior Web-based Survey 2005 to 2013. We ran the scenario simulation. RESULTS: This model can be used to understand the current adolescent obesity rate, predict the future obesity rate, and be utilized as a tool for controlling the risk factors. The results of the model simulation match well with the data. It was identified that a proper model, able to predict obesity probability, was established. CONCLUSION: These results of stock and flow diagram modeling in adolescent obesity can be helpful in development of obesity by policy planners and other stakeholders to better anticipate the multiple effects of interventions in both the short and the long term. In the future we suggest the development of an expanded model based on this adolescent obesity model.
Adolescent ; Humans ; Internet ; *Nonlinear Dynamics ; Obesity/*pathology ; Republic of Korea ; Risk Factors ; *Risk-Taking ; Surveys and Questionnaires

We report a case of pulmonary infarction probably related with Henoch-Schönlein purpura, which presented with purpura on both lower extremities in a 27-year-old woman. The purpura had developed 4 days previously and it had no itching or tend'erness. She complained of mild fatigue, chest tightness, but no dyspnea or hemoptysis. On routine examination, chest radiography showed a poorly defined nodular opacity on the left lung field, and it was diagnosed by a follow up chest CT as a pulmonary infarction secondary to pulmonary vasculitis.
Adult ; Dyspnea ; Fatigue ; Female ; Follow-Up Studies ; Hemoptysis ; Humans ; Lower Extremity ; Lung ; Pruritus ; Pulmonary Infarction* ; Purpura* ; Radiography ; Thorax ; Tomography, X-Ray Computed ; Vasculitis