To ease the convinience of indentification of common dermatophytes in Korea and to check the possibility of diseovering new species not yet reported in Korea, several species of dermatophytes were cultured on potato dextrose agar(PDA) at the room temperature. They were 46 strains isolated from Korea and 6 domestic strains from a foreign country. Gross and microscopic findings of their colonies were examined. The colonial morphology and microscopic appearance were compared with those of the same strains on Sabouraud dextrose agar(SDA) and corn meal agar(CMA). The results were as follows Typical T. rubrum and its varisnts showed characteristic wine red pigmentation which was rapid, diffuse and uniform, typically arrsnged microconidia were better on PDA. T. mentagrophytes showed yellow-brown pigmentation which were more rapid and darker in the center with gradual fading to the periphery. The mscroconidia, grape-like clusters of microconidia and spiral hyphae were seen better on SDA. T. tonsurans showed characteristic mahogsny colored pigmentation, ballooned microconidia and macroconidia which were seen better on PDA, but diffusible pigmentation of agar were present on SDA only. The gross morphology of T. verracosum were similar on PDA and SDA, but macroconidia were seen better on PDA and CMA, and tortuous hyphae with antler-like branching were seen better on SDA. T. rnegninii showed green-brown pigmentation which appeared rapidty and prominently on PDA. T. rubrum-like microconidia were seen better on PDA and CMA, but in SDA only hyphae were seen. The gross morpholgy of M. canis was similar on PDA and SDA, but spindle shaped macroconidia were seen more typically on PDA. The gross morphology and microscopic appearance of M. gypseum were very similar in all three media. M. ferruginenm showed characteristic rust colored pigmentation and bamboo hyphae which were seen more typically on PDA. The gross morphalogy of E floceosum were similar on PDA and SDA, but cluster formation of club shaped macroconidia were seen more prominently on PDA and CMA. These findings suggest that PDA is a mare convincing media t6Cifferentiate among dermatophytes belonging to genus Trichopkyton.
Agar* ; Arthrodermataceae* ; Glucose ; Hyphae ; Korea ; Meals ; Pigmentation ; Solanum tuberosum* ; Wine ; Zea mays

No abstract available.
Injections, Intralesional* ; Tuberculosis*

No abstract available.
Tinea* ; Trichophyton*

A case of sporotrichosis misdiagnosed as lupus vulgaris was presented. A 56-year-old woman had been to pea sized, nontender pustules and a hypertrophic-scar-like nodule on the right thigh. She denied any trauma before the lesions developed. Histopathologic findings from the lesion showed tuberculosis-like granulomatous changes. And she was diagnosed as lupus vulgaris. She also had pulmonary tuberculosis and had been treated with antituberculous drugs for 1 year. But skin lesions was not cleared. We suspected the lesions as one of deep mycoses and could confirm sporotrichosis by mycologic studies. They showed characteristic gross colonies and microscopic findings of Sporothrix schenckii..
Female ; Humans ; Lupus Vulgaris* ; Middle Aged ; Mycoses ; Peas ; Skin ; Sporothrix ; Sporotrichosis* ; Thigh ; Tuberculosis, Pulmonary

Paget's disease of the breast occurs almost exclusively in women, and is characterized by a unilateral, sharply defined eczematous skin lesion caused by epidermal metastases from underlying ductal adenocarcinoma of the breast. Paget's disease of the male breast is extremely rare. A 61-year-old patient had a skin lesion on the right nipple for 1 year. The lesion was a well defined, brownish, crusted, and keratotic papule, and was associated with an underlying walnut sized, fixed, hard mass and a palpable ipsilateral axillary lymph node. Histologic findings were consistent with Paget's disease. Results of immunoperoxidase staining technigues for S-100 protein and carcinoembryonic antigen were negative. After a modified radical mastectomy and chemotherapy, the patient has been in remission for 12 months.
Adenocarcinoma ; Breast* ; Carcinoembryonic Antigen ; Drug Therapy ; Female ; Humans ; Juglans ; Lymph Nodes ; Male* ; Mastectomy, Modified Radical ; Middle Aged ; Neoplasm Metastasis ; Nipples ; Paget's Disease, Mammary ; S100 Proteins ; Skin

We report a case of piroxicam-induced photosensitive dermatitis in a 54-year-old female. She had taken oral piroxicam and was exposed to the sunlight on her way home for a few minutes. Several hours after the sun-exposure she developed well-defined, confluent, erythematous plaques and numerous vesicobullae with pruritus and prickling sensation on the sun-exposed areas. A phototest was done on her first visit. The minimal erythemogenic dose (2 J/cm²) of ultraviolet (UV) A was markedly decreased whereas that of UVB was within a normal limit. Visible light irradiation for 30 minutes did not cause skin lesions. Six months after the initial skin lesions, a photopatch test with 1% and 10% piroxicam solution followed by UVA (10 J/cm²) irradiation showed positive responses on both concentrations.
Dermatitis* ; Female ; Humans ; Light ; Middle Aged ; Piroxicam ; Pruritus ; Sensation ; Skin ; Sunlight

The pathophysiology of impingement syndrome and labral tear was variable and not clear. In general populations, lesions occur mainly in acute cases. But in athletes, lesions are caused by repetitive exposure to excessive force, resulting in different patterns. For diagnosis, thorough physical examinations and radiologic findings should be combined. In athletes, conservative treatment including posterior capsular stretching and periscapular muscle strengthening is recommended as the first choice of treatment considering chronic progression and adaptive change. When choosing surgical treatment because of failure of conservative treatment, careful attention should be paid to the choice of repair or debridement of the rotator cuff partial tear, and the choice of the labral repair or biceps tenodesis.
Athletes* ; Debridement ; Diagnosis* ; Humans ; Physical Examination ; Rotator Cuff ; Shoulder Impingement Syndrome ; Tears* ; Tenodesis

Skip lesion is not uncommon feature in osteosarcoma and considered to be importantly associated with poor prognosis factor, and thus, should be excised with the main mass. The accurate pre-operative evaluation of the intramedullary extent of osteosarcoma is essential, because it determines the level of bone resection. Among the reliable detection methods, bone scan has a drawback of high rate of false negative results and regional MRI has a difficulty to cover the whole involved lesions without clinical suspicion. The authors report a case of osteosarcoma of the distal femur with a proximal skip lesion that was not detected by either regional MR imaging or by bone scan, but which was visualized by FDG-PET/CT.
Complement System Proteins ; Femur ; Neoplasm Metastasis ; Osteosarcoma ; Prognosis

Fibrocartilaginous dysplasia (FCD) has occasionally led to a misdiagnosis and wrong decision which can significantly alter the outcome of the patients. A 9-yr-old boy presented with pain on his left distal thigh for 6 months without any trauma history. Initial radiographs showed moth eaten both osteolytic and osteosclerotic lesions and biopsy findings showed that the lesion revealed many irregular shaped and sclerotic mature and immature bony trabeculae. Initial diagnostic suggestions were varied from the conventional osteosarcoma to low grade central osteosarcoma or benign intramedullary bone forming lesion, but close observation was done. This study demonstrated a case of unusual fibrocartilaginous intramedullary bone forming tumor mimicking osteosarcoma, so that possible misdiagnosis might be made and unnecessary extensive surgical treatment could be performed. In conclusion, the role of orthopaedic oncologist as a decision maker is very important when the diagnosis is uncertain.
Bone and Bones/*radiography ; Child ; Diagnosis, Differential ; Femur/radiography ; Fibrocartilage/*radiography ; Humans ; Magnetic Resonance Imaging ; Male ; Osteosarcoma/diagnosis/radiography

OBJECTIVE: To evaluate the prevalence of dysphagia in neonates who showed abnormal findings on videofluoroscopic swallowing studies (VFSSs), and to compare the accuracy of the clinical evaluation with the VFSS results. METHOD: A clinical investigation of 142 neonates admitted to a neonatal intensive care unit was carried out to evaluate the presence of low O2 saturation (<80%), symptoms of cyanosis, coughing and/or vomiting, nasal regurgitation, drooling saliva, voice change and crying during feeding. VFSSs were performed on the neonates who had at least one of these clinical abnormalities. RESULTS: Of the 142 patients, 37 (26.1%) had at least one of the clinical symptoms of dysphagia. Twenty two of 37 (59.5%) showed abnormal findings on the VFSS. The patients exhibiting cyanosis and coughing during feeding had a higher incidence of aspiration (11 of 11, 100%) on the VFSSs than did the patients with other symptoms: cyanosis (3 of 13, 30.8%), cyanosis with vomiting (0 of 2, 0.0%), coughing without cyanosis (2 of 5, 40.0%), voice change (2 of 2, 100%) and nasal regurgitation (1 of 3, 33.3%). CONCLUSION: The prevalence of laryngeal penetration or subglottic aspiration among those neonates who were clinically suspected of dysphagia was 59.5%. Coughing with cyanosis during feeding was the best predictor of both these abnormalities.
Cough ; Crying ; Cyanosis ; Deglutition ; Deglutition Disorders ; Humans ; Incidence ; Infant, Newborn ; Intensive Care, Neonatal ; Prevalence ; Saliva ; Sialorrhea ; Voice ; Vomiting