Bronchogenic cysts can arise either in the mediastinum or in the lung parenchyma. On both CT and T1 -weighted MR images, the cyst contents can show a variable signal characteristics. However, on T2-weighted MR images, the cyst show high signal intensity. Although unusual, the cyst may communicate with the tracheobronchial tree and demonstrate partial or complete air content. With hemorrhage, fluid-fluid levels can also be seen within the cyst. Pathologically, the diagnosis of bronchogenic cyst rests on demonstration of tissues normally found in the tracheobronchial tree within the cyst wall.
Adult* ; Bronchogenic Cyst* ; Diagnosis ; Hemorrhage ; Humans ; Lung ; Mediastinum

PURPOSE: To describe the radiological differences between tuberculous(TBB) and non-tuberculous bronchiectasis(NTBB). MATERIALS AND METHODS: Chest radiographs(n=62), bronchograms(n=18), and CT scans(n=52) of 37 patients with TBB and 25 patients with NTBB were reviewed retrospectively. Diagnostic basis for TBB were positive sputum AFB with or without history of anti-tuberculous chemotherapy(n=35), and radiological findings of pulmonary tuberculosis (n=2). Four of NTBB had a history of severe respiratory tract infection in childhood. RESULTS: Air-fluid levels on chest radiographs were seen in 2% of TBB, and 20% of NTBB. On bronchograms, all patients with TBB had combined focal bronchostenosis, whereas patients with NTBB had tubular(50%), cystic(17%), or mixed(33%) pattern of dilatation without stenosis. On CT scans, focal emphysema was seen in 86% of the patients with TBB, and 38% of the patients with NTBB. Peribronchiolar infiltration were seen in 78% and 44% of patients with TBB and NTBB, retrospectively. CONCLUSION: Basic radiological difference between TBB and NTBB was that the former had coexistent sten.
Bronchiectasis* ; Constriction, Pathologic ; Dilatation ; Humans ; Pulmonary Emphysema ; Radiography, Thoracic ; Respiratory Tract Infections ; Retrospective Studies ; Sputum ; Thorax ; Tomography, X-Ray Computed ; Tuberculosis, Pulmonary

Cutaneous horn is a clinical term for a circumscribed concial hyperkeratotic mass amounts to at least half of its largest diameter. The number of lesion may be single or multiple. We report herein a cases of penile cutaneous horn in a 22-year-old male. He had dark brownish colored conical shaped protruded mass on the penile shaft for about 2 months. We performed excisional biopsy and curettage. Histopathologic findings showed verruca vulgaris.
Animals ; Biopsy ; Curettage ; Horns* ; Humans ; Male ; Warts ; Young Adult

PURPOSE: The incidence of lung cancer in patients with idiopathic pulmonary fibrosis(IPF) is higher than that of general population. To evaluate the frequency and CT findings of lung cancer associated with idiopathic pulmonary fibrosis, we analyzed 19 patients with lung cancer associated with idiopathic pulmonary fibrosis. MATERIALS AND METHODS: We analyzed retrospectively 19 patients with histologically confirmed lung cancer out of 208 patients diagnosed as IPF either by CT and clinical findings(n=188) or histologically(n=20). All 19 patients were male, aged 40--85 years (mean 66 years). Scanning techniques were conventional CT in 12 patients, HRCT in 1 patient and both conventional CT and HRCT in 6 patients. We analyzed the CT patterns of lung cancer and IPF, locations of the tumor and histologic types of lung cancer. RESULTS: The incidence of lung cancer in patients with idiopathic pulmonary fibrosis was 9.1%(19/208). In 11 of 19 patients, CT findings of lung cancer were ill-defined consolidation-like mass. Lung cancer was located mainly in lower lobes(right lower Iobe;10/19, left lower Iobe;5/19) and at the periphery(12/19). Histologically, squamous cell carcinoma was the most common cell type (11/19). CONCLUSION: The incidence of lung cancer in patients with idiopathic pulmonary fibrosis was much higher than that of general population. Typical CT findings of lung cancer were predominantly ill-defined consolidation like mass at the peripheral lung portion which is the [ocatiaon where the most advanced fibrosis occur.
Carcinoma, Squamous Cell ; Fibrosis ; Humans ; Idiopathic Pulmonary Fibrosis* ; Incidence ; Lung Neoplasms* ; Lung* ; Male ; Retrospective Studies

No abstract available.
Angiofibroma* ; Carbon Dioxide* ; Carbon* ; Lasers, Gas* ; Sirolimus* ; Tuberous Sclerosis*

The characteristic radiographic and CT findings of Iobar atelectasis are well known. However, Iobar atelectasis is a dynamic process, and atypical presentations may occur due to a number of different causes. Familiarity with the various typical and atypical radiographic findings of Iobar atelectasis is important for correct diagnosis. The aim of this manuscript is to illustrate the spectrum of radiographic findings of Iobar atelectasis and to correlate the radiographic findings with the CT findings. The review will illustrate examples of typical and atypical Iobar atelectasis, including combined Iobar atelectasis, peripheral Iobar atelectasis, migrating Iobar atelectasis, rounded atelectasis involving the entire lobe and Iobar atelectasis mimicking paravertebral and mediastinal masses.
Diagnosis ; Pulmonary Atelectasis* ; Recognition (Psychology)

The characteristic radiographic and CT findings of Iobar atelectasis are well known. However, Iobar atelectasis is a dynamic process, and atypical presentations may occur due to a number of different causes. Familiarity with the various typical and atypical radiographic findings of Iobar atelectasis is important for correct diagnosis. The aim of this manuscript is to illustrate the spectrum of radiographic findings of Iobar atelectasis and to correlate the radiographic findings with the CT findings. The review will illustrate examples of typical and atypical Iobar atelectasis, including combined Iobar atelectasis, peripheral Iobar atelectasis, migrating Iobar atelectasis, rounded atelectasis involving the entire lobe and Iobar atelectasis mimicking paravertebral and mediastinal masses.
Diagnosis ; Pulmonary Atelectasis* ; Recognition (Psychology)

Neonatal Malassezia pustulosis can be defined as pustules on face and neck, age at onset, younger than 1 month, isolation of Malassezia by direct microscopy in pustular material, elimination of other causes of neonatal pustuloses, and response to topical ketoconazole therapy. We report a case of neonatal Malassezia pustulosis in a 20-day-old male. Direct microscopic examination on smears for pustules showed forms of Malassezia yeasts and culture yielded Malassezia sympodialis. The lesions were remarkably improved by topical ketoconazole cream for 14 days.
Humans ; Ketoconazole ; Malassezia* ; Male ; Microscopy ; Neck ; Yeasts

Mitochondrial myopathy is characterized by variable clinical manifestations from mild limb weakness to fatal respiratory failure and central nervous system sequela. But it is a rare event that sleep disordered breathing become a clue of diagnosis for mitochondrial myopathy. We report a case of a 21 year-old man who was diagnosed as mitochondrial myopathy during the investigation for the possible cause of chronic hypoventilation syndrome. Before being admitted to our hospital, he was suspected as having sleep apnea syndrome in another hospital. We re-evaluated the history, physical examination, laboratoy findings and polysomnography in detail. Severe hypoxemia was noted during REM sleep on nocturnal polysomnography and the diagnosis of mitochondrial myopathy was made by muscle biopsy in rectus abdominis muscle. We treated him with bilevel positive airway pressure therapy during sleep and it could reverse the hypoxemia during REM sleep. He could be discharged with improved condition and is being well with the use of this ventilatory assistance.
Anoxia* ; Biopsy ; Central Nervous System ; Diagnosis ; Extremities ; Humans ; Hypoventilation ; Mitochondrial Myopathies* ; Physical Examination ; Polysomnography ; Rectus Abdominis ; Respiratory Insufficiency ; Sleep Apnea Syndromes ; Sleep, REM* ; Young Adult

Malassezia folliculitis is characterized by pruritic follicular papules and pustules by Malassezia which are inhabitants of normal skin. We report a case of Malassezia folliculitis in a 12-month-old female, with a history of liver cirrhosis due to congenital biliary atresia. She presented with erythematous papules and pustules on the face 4 months ago. The diagnosis of Malassezia folliculitis was established by Parker ink-KOH direct microscopy. The lesions were successfully treated with topical ketoconazole cream for 2 weeks.
Biliary Atresia ; Diagnosis ; Female ; Folliculitis* ; Humans ; Infant* ; Ketoconazole ; Liver Cirrhosis* ; Liver* ; Malassezia* ; Microscopy ; Skin