• Journal of Chest Surgery
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• v.19 no.4
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• pp.722-725
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• 1986

Rupture of the main bronchus following closed injury to the chest is a comparatively rare accident. The late recognition of this injury is attended by difficulties in management which may endanger life or expose the patient to distressing months and years of arduous therapy. This case was a 17 year old female who was a high school student. The patient had sustained a crushing injury to her right hemithorax and had been taken to an emergency hospital where right closed thoracostomy had been performed for a tension pneumothorax. She improved following this procedure but massive atelectasis of the right lung developed on the 13th day after trauma and transferred to our hospital. Bronchoscopy disclosed granulation tissue in the right main stem bronchus and end to end anastomosis of the bronchus was performed. Postoperative course was uneventful.

• Journal of Korean Society on Water Environment
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• v.33 no.3
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• pp.302-310
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• 2017

The morphological characteristics of granules developing in anaerobic-anoxic (An-Ax) and anaerobic-aerobic (An-Ox) sequencing batch reactors (SBRs) were examined. The granules developed in the both SBRs after 200 days of laboratory operation. The average diameters of the granules were $2.2{\pm}1.7mm$ in the An-Ax SBR and $0.4{\pm}0.3mm$ in the An-Ox SBR. To determine the possible factors affecting morphology of granules a comparative analysis of various operating conditions from reference data indicated that the availability and type of electron acceptors is a key factor determining the granulation process and granular morphology.

• Korean Journal of Veterinary Research
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• v.32 no.4
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• pp.585-595
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• 1992

We have investigated the characteristics of encephalomyocarditis(EMC) virus isolated in Korea. The CPE, buoyant density, polypeptide profile and the size of RNA of EMC virus were examined. The granulation, pyknosis and necrosis were observed from 30 to 48 hour's post inoculation of the virus into baby hamster kidney and lung cells. The buoyant density was 1.30 and $1.35g/m{\ell}$. Three different polypeptides, 26Kd, 32Kd, and 34Kd in size, were observed and the size of viral RNA was 7.7Kb.

• The Korean Journal of Cytopathology
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• v.2 no.2
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• pp.119-126
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• 1991

A 33-year-old woman who was diagnosed as medullary carcinoma by fine needle aspiration of thyroid mass is presented. The smear revealed dispersed pattern and small clusters of cells without follicular or papillary structures. The nuclei were round, oval or spindle shaped and eccentrically located. The cytoplasm was abundant and showed red-stained cytoplasmic granulation and tail-like projection with indistinct border. Clumps of amorphous, light-green material were intermingled with tumor cells.

• The Korean Journal of Cytopathology
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• v.2 no.2
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• pp.172-178
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• 1991

Actinomycosis involving the female genital tract has increased since the advent of the intra-uterine contraceptive devices (IUD) : the incidence of actinomyces in IUD users with pelvic inflammatory disease (PID) was reported to be between 17% and 30%. However a definte relationship between actinomyces and PID has not been demonstrated as yet. We present a case of pelvic actinomycotic infection that was initially diagnosed by means of fine needle aspiration. A 57-year-old female presented with urinary frequency and difficulty for 100 days. Computerized tomographic findings showed a mixed heterogenous soft tissue mass in the left superior aspect of urinary bladder. Fine needle aspiration was done under the impression of urinary bladder cancer. Microscopically, smears disclosed many sulfur granules in necrotic background with many neutrophils, histiocytes, multinucleated giant cells and granulation tissue. These findings were confirmed by surgical removal of the mass.

• Korean Journal of Bronchoesophagology
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• v.4 no.2
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• pp.177-181
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• 1998

Provox is now widely used for voice rehabilitation for total laryngectomized patient because of its low airway resistance and easiness for phonation. This study was designed to reveal the influence of radiation therapy on Proven complications. Forty-four patients who underwent total laryngectomy were grouped into group A (no radiation), group B(radiation and then Provox insertion), group C(Proven insertion and then radiation). Provox complications were leakage, granulation tissue formation, malfunction and infection. The average survival time of Provox was longer in group C (9.2 me) than group A(8.6 m) or group B (7.3 me), but no statistical significance was found. The first time of Provox change was 10.2, 8.6 and 9.7 months respectively. The incidence of complication was not significantly different among groups. The cases of Provox remeval due to shunt failure were 5, 4 and 2 respectively. Even though a significant statistically difference was not found partialy due to the small numbers of patients, a special caution should be exercised in inserting Provox to prevent a serious complication for the patients who had a history of previous radiation.

• Korean Journal of Bronchoesophagology
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• v.9 no.2
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• pp.74-77
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• 2003

Pyogenic granuloma is very uncommon disease. It is a benign, elevated, and capillary-rich lesion occupying on the skin and mucous membranes, and is a reactive lesion, an overgrowth of granulation tissue. And this lesion may grow rapidly and can recur frequently. Pyogenic granuloma usually occurs on the lip, tongue, oral mucosa, and nasal mucosa. But, pyogenic granuloma of vocal cords is very rare. Recently, we experienced a case of pyogenic granuloma of a 48-year-old man who had been presented with hoarseness for 3 months. He was diagnosed pyogenic granuloma after laryngeal microscopic surgery. So we report this rare case with review of literatures.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1979.05a
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• pp.9.4-9
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• 1979

Diffculty decannulation is one of serious and troublesome complication in management. The etiologic factors were deviation of tracheal wall, growing of granulation tissue, subglottic edema, cicatricial stenosis of trachea and functional factor. We observed 9 cases of diffculty decannlation after tracheostomy and we report with literature review on these cases.

• Korean Journal of Bronchoesophagology
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• v.1 no.1
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• pp.101-108
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• 1995

From 1988 to 1995, 59 patients with laryngotracheal stenosis were operated with resection of stenotic segment and end to end anastomosis in Seoul national university. Among these patients, 36 were tracheal stenosis, 17 were combined lesion of subglottis and trachea and 5 were subglottic stenosis. The success of procedure was determined by stoma closure or decannulation and an overall 89.8% success rate was achieved following 165 procedures. The success rate showed correlation with severity of stenosis and the number of procedures done was related to the site of stenosis. There was no mortality and granulation formation, unilateral vocal cord palsy were the common complication of end to end procedures.

• Journal of the Korean institute of surface engineering
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• v.37 no.4
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• pp.196-199
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• 2004

Seedlayers with low surface energy which increases the density of nucleation sites in the initial growth region of the recording layer deposited on them was studied to reduce grain size in recording layer. The seedlayer with low surface energy was so effective to attain finer grain in magnetic upper-layers. The Ni-Fe-O intermediate layer with low surface energy was found to be effective in reduction of grain size as well as magnetic cluster size of Co-Cr-Ta-Pt recording layer. Furthermore, the reduction of grain size in Co-Cr-Ta-Pt recording layer on Ni-Fe-O intermediate layer with low surface energy led to decrease the noise level in the high recording density region.