PURPOSE: We evaluated internal and marginal features of solitary pulmonary nodules on CT to differentiate between benign and malignant pulmonary nodules. Materials and Uethods:CT findings of 43 cases with solitary pulmonary nodule were reviewed, restrospectively. Independent T-test between benign and malignant nodules was used. RESULTS: Twenty-one cases were proved as benign nodules and 22 cases as malignant. CT air bronchogram was observed more frequently in the malignant lesions(36.4%) than in the benign ones (p=0.01). ,Air bubble shadow was observed in 5 cases of benign nodule, whereas none of the malignant lesions revealed it. Internal homogeneity or central low density was not different between the two groups. Cavitation was observed in 3 cases of tuberculoma and in 1 case of adenocarcinoma. Calcification was observed in 7 cases of benign and in 2 cases of malignant lesions. Differences in these two features were not statistically significant Mean size of malignant nodules was 3.23cm, and was larger than 2.16cm of benign nodules (p=0.002). Margin of benign nodules was more smooth (42.9%) than that of malignant nodules (p=0.01), and malignant nodules showed more Iobulated contour (90.9%) than benign nodules (42.9%) (p=0.00). The incidence of spiculation was not significantly different (benign 85.7% vs malignant 86.4%). Statistically, pleural tail and satellite lesions were not significantly different between two groups. CONCLUSION: Lobulated margin and CT air bronchogram are the most suggestive findings of malignant pulmonary noule on chest CT.
Adenocarcinoma ; Incidence ; Solitary Pulmonary Nodule* ; Tomography, X-Ray Computed ; Tuberculoma

No abstract available.
Pneumothorax*

PURPOSE: Osteoporosis is generally regarded as disease of women and there are extensive data about post-menopausal osteopotosis, but there is relatively little information concerning the osteoporosis in aging male. We aimed to determine the relationships between age ,androgen and bone mineral density (BMD) in elderly korean men. MATERIALS AND METHODS: We evaluated the sex hormones and BMD of 82 elderly men between May 1999 and April 2000. Serum free testosterone (FT), total testosterone (TT), DHT, LH, FSH and Prolactin were measured by RIA. BMD at anteroposterior L2-4, femoral neck, ward's triangle, femoral trochanter and femoral shaft were determined by dual-energy X-ray absorptiometry. We defined group I as free testosterone <10ng/dl and group II as 10ng/dl. RESULTS: Serum LH and FSH increased with age. There was a significant decrease in serum FT with age, but T concentrations remained unchanged. There were significant declines with age in BMD at femoral neck, Ward's triangle, femoral trochanter, femoral shaft. Serum FT were significantly correlated to BMD at anteroposterior L2-4, femoral neck, Ward's triangle, femoral trochanter, femoral shaft. After controlling for age, serum FT were significantly correlated to BMD at femoral trochanter, femoral shaft. Mean BMD was significantly lower in group I than group II at anteroposterior L2-4, femoral shaft. CONCLUSIONS: We suggest that FT is a male osteoporotic marker in man older than 50 years and bone mineral density should be considered for diagnosis of male osteoporosis associated with PADAM, especially when FT is lower than 10ng/dl.
Absorptiometry, Photon ; Aged ; Aging* ; Bone Density* ; Diagnosis ; Female ; Femur ; Femur Neck ; Gonadal Steroid Hormones ; Humans ; Male* ; Osteoporosis ; Prolactin ; Testosterone

The authors observed 2 cases of poikilcdermatomyositis who were 16 and l0 years old female. The former visited our dept. due to rashes on the anterior portion of right thigh with 3 months duration. The skin lesion revealed mottled skin pigmentation, telangiectasia, atrophy, and cigarrette paper like wrinklings. On the palpation, hardness and tenderness in the lesion were felt. The latter visited our dept. due to weakness of the right lower extremity for 3years. The skin lesion revealed the same feature as the former but more prominent. Histophthologically, P.V.A. patterns are seen in the both skin lesions. The epidermis shows moderate atrophy of St. malphigi and flattening of reteridges. The dermis is edematous, vascular dilatations, and cellular infiltrations, most of lymphocytes, around the blood vessels. The muscle biopsies for the Quardriceps Femoris sbow Dermatomyositis patterns which the muscle bundles are degenerative changes and many cellular infiltrations, chiefly of lymphocytes, are seen between the muscle bundles. Diagnosis was confirmed by the clinical and histological pictures. These patients were markedly improved by the prednisolone therapy.
Atrophy ; Biopsy ; Blood Vessels ; Dermatomyositis ; Dermis ; Diagnosis ; Dilatation ; Epidermis ; Exanthema ; Female ; Hardness ; Humans ; Lower Extremity ; Lymphocytes ; Palpation ; Prednisolone ; Skin ; Skin Pigmentation ; Telangiectasis ; Thigh

Erythema Annulare Centrifugum is characterized by migratory annular, arcuate or polycyclic erythemas with central clearing. Its etiology is not conclusive but there are many reports about the etiology, i.e." due to dermatophytid"," the drugs",' intemal diseases", or" unknown etiology" etc. A case of Erythema Annulare Centrifugum with "unkown etiology" was reported. The patient revealed slightly elevated, migratory annular erythemas with central clearing on the both posterior portions of thighs. Histopathologically, there was no abnormality in the epidermis. In the dermis, cellular infiltrates sbowing fairly well demarcated perivascular coat-sleeve like arrangement and endothelial prolifera01
Dermis ; Epidermis ; Erythema* ; Humans ; Thigh

According to literatures, the different types of fractures can occur as a result of arm wrestling ; Spiral fracture of the humeral shaft associating often with a bntterfly fragment, fracture of medial epicondyle of the humerus, and the marginal radial head fracture with anterior dislocation. The last type is very rarely reported. In addition to the fracture occurrence, other injuries such as muscular strain of the arm, and sprain or luxation of the shoulder, elbow and wrist joints can be taken place. However, it is thought that the most of those injuries by arm wrestling have been treated simply by general practioners unreported. The arouse the attention of the jury of the game, wrestlers and the surgenons, the cases of bony injuries sustained during the arm-wrestling are reported. Thirteen patients were treated by us since 1977. Among them, five cases had fractures of the humeral shaft, and eight cases had fractures of medial epicondyle of the humerus. Among the five shaft fractures, three were treated by conservatively, and two by operatively. Among 8 avulsion fractures of the medial epicondyle only two were treated conservatively, and 6 operatively. One patient sustained the medial epicondylar avulsion fracture twice for which K-wire fixation treatment was done. The results of treatment were all satisfactory. However, because of the possibility of wrestlers sustaining such injuries. Arm wrestling should not be considered a totally benign sport.
Arm ; Dislocations ; Elbow ; Head ; Humans ; Humerus ; Shoulder ; Sports ; Sprains and Strains ; Wrestling ; Wrist Joint

Proximal femoral focal deficiency (PFFD) in early infancy is characteristic by quite shortening of the tight segment, flexed, abducted and externally rotated position In assciation with a stable hip which Is freely mobile. Authors experienced a case with the congenital deficiency of the femoral head. The case showed the normal femoral segment and no any other bony anomalies which cannot be Included in Aitkens or Amstutz's classification.
Classification ; Head ; Hip

No abstract available.
Drug Therapy* ; Lung*

Treatment of infected nonunions of long bone is confronted with various difficult problem, e.g. eradication of infection and osseous union even in the presence of devastating infection. To solve this problem various method were proved including exerternal fixation, electrical stimulation and functional casting method with some success. Intreating these difficult infected nonunions, we adopted another program which includes through debridment of the infected and necrotic soft tissue and bone, autogenous bone graft, rigid internal fixation of fragments and ope.n drainage of the wound until union of the fracture. We treated 8 cases of infected nonunions with this method from march, 1980 to september 1983 and results are as follows: 1. Satisfactory union was obtained within average 5 months. 2. In some cases pus drainage continued even after osseous union but it was easily controlled after removal of fixation devices. 3. After bone union and removal of internal fixation devices, some kind of protective measures, e.g. crutches and braces were used for about 6 montes to prevent refracture. 4. In conclusion our method is considered to be an effctive means is treating infected nonunion of fractures.
Braces ; Crutches ; Drainage ; Electric Stimulation ; Internal Fixators ; Methods ; Suppuration ; Transplants ; Wounds and Injuries

Since the introduction of Holdsworth's new classification on fracture-dislocations of spine with particular emphasis on the role of posterior ligmaent complex, operative reduction and spinal fusion is considered to be an established procedure in treating unstable injuries of the thoracolumbar spine.By stabilizing unstable fractures,nursing, and rehabilitation become much easier. Among the various methods and devices, Harrington instrumentation and posterior spinal fusion have been used and found to be acceptable in our series. Twenty five consecutive patients with unstable fractures and fracture-dislocations' of thoracolumbar spine were treated by open reduction and spinal fusion with Harrington rod fixation at the Department of Orthopedic Surgery, Kang Nam General Hospital Public Corporation from the period of 1982 to 1985. The following results were obtained from analysis of the cases. l. Among 25 cases, 15 (60%) were due to flexion-rotation violence, 5 pure flexion,3 vertical compression, 1 shear fracture respectively. 2. Among 16 cases with neurologic deficit, 15 cases showed considerabel improvement after surgery. 3. Most of the cases showed satisfactory bony fusion, and average postoperative kyphotic angle was 14.4 after 3 months. 4. Although no particular external fixation was adopted, permitting mobility in bed, postoperative correction was relatively well maintained.
Classification ; Hospitals, General ; Humans ; Neurologic Manifestations ; Orthopedics ; Rehabilitation ; Spinal Fusion ; Spine ; Violence