PURPOSE: To obtain the useful information about tumor behavior of hepatocellular carcinoma by analyzing the recurrence pattern after curative resection. MATERIALS AND METHODS: Forty-two patients who underwent curative resection of hepatocellular carcinoma were analyzed. Based on the firstly detected radiologic recurrence, we classified recurrence patterns into three types, type I;marginal recurrence, type II;intrahepatic nodular(multiple, single) and type III;extrahepatic. We also analyzed its duration of recurrence after curative resection. RESULTS: Eighteen patients showed no radiologic recurrence during follow-up period(mean 19.2 months). Twenty-four patients showed radiologic recurrence at 29 sites and its mean duration was 11.0 months. Recurrence patterns were seven cases in type I, 14 cases in type II(multiple 11, single three), eight cases in type III including two omental, two extrahepatic lymph node, two brain, one spine, and one intracranial metastasis. Among the extrahepatic recurrences, five cases showed only distant metastasis without hepatic recurrence. Mean duration of recurrence according to the site was 16.0 months in type I, 12.6 months in type II, 12.3 months in type III. Among 20 patients with single site recurrence, type 11(9.0 months) was earlier than type 1(10.3 months). CONCLUSION: lntrahepatic recurrence is more common than extrahepatic recurrence. Intrahepatic nodular, especially multinodular recurrence, is more common than marginal recurrence. Intrahepatic recurrence has tendency to develope earlier metastain earlier than marginal recurrence.
Brain ; Carcinoma, Hepatocellular* ; Follow-Up Studies ; Humans ; Lymph Nodes ; Neoplasm Metastasis ; Recurrence* ; Spine

PURPOSE: To make the guideline for diagnosis and treatment policy of various hepatocytic nodular lesions detected during the imaging diagnosis of cirrhotic liver and to get our own data about hepatocellular carcinoma based on Korean patients. MATERIALS AND METHODS: We retrospectively reviewed 40 confirmed hepatocellular carcinomas foilwed up with CT more than once without any treatment. Total numbers of follow-up were 50. First, we input the data of initial and follow-up diameter visible on CT images and follow-up interval of each mass to the computer, and got the mean growth rate curve and growth curve of hepatocelluiar carcinoma using a program of Quattro-pro, one of the spreadsheet. And then the doubling time was also calculated using Schwarz's formula. RESULTS: According to the growth rate curve, the tumor under 3 cm in diameter showed relatively show growing pattern but the one above 3 cm in diameter showed rapid growing pattern. Mean growth curve also showed rapid turning point around 3 cm. Overall mean doubling time was 82 days(mean +/- SD = 82.3 +/- 56.2): 119 days in the tumors smaller than 30 mm in diameter, 69 days larger than 30 mm in diameter. CONCLUSION: Hepatocellular carcinoma'is relatively slowly growing tumor and shows rapid increase of its growth rate when it is larger than 30 mm in diameter as a turning point. We think that this fact could make an important role to determine the treatment policy of various hepatocytic nodular lesions suspecting hepatocellular carcinoma.
Carcinoma, Hepatocellular* ; Diagnosis ; Follow-Up Studies* ; Humans ; Liver ; Retrospective Studies

This paper describes to design and to examine the mechanical characteristics of high frequency jet ventilator. The device consists of Phase lock loop (PLL) system, solenoid valve driving control part and Air regulating system. This study is carried out by changing several factors such as endotracheal tube (E.T. tube) diameter, injector cannula diameter, 1%, and frequency (breaths/min.) having direct effects on the gas exchange as well as parameters of the entrained gas by venturi effect, so as to measure the tidal volume and minute volume. This system characteristics were as follows: 1) Frequency: 6-594 bpm 2) Inspiration time: 1-99% 3) Variance of input air pressure: 1-30 PSI
Air Pressure ; Catheters ; Tidal Volume ; Ventilators, Mechanical*

Gall bladder wall varices are unusual manifestations of protal hypertention. Authors report 4 cases of gall bladder wall varices which were easily detected in IV bolus CT. All of our cases showed main portal vein obstruction but preserved intrahepatic portal flows with development of cavernous transformation. We could easily identify tortous and tubular structures with strong contrast enhancement in the gall bladder wall, compatible with gall bladder wall varices, at the early phase of IV bolus CT. Comparing with Doppler sonography, IV bolus CT is an easy and useful method for detection of gall bladder wall varices even in case of no prior information for portal vein abnormality.
Diagnosis* ; Methods ; Portal Vein ; Urinary Bladder* ; Varicose Veins

PURPOSE: To identify the longterm hemodynamics of various hepatic masses and to determine any differential findings by using postangiographic CT performed with increased amount of contrast media and time than conventional contrast CT. MATERIALS AND METHODS: 50 confirmed masses consisted of 22 hepatocellular carcinoma, 10 cholangiocarcinoma, 9 metastasis, and 9 cavernous hemangioma were included. The changes of the density of internal viable tumor portion relative to surrounding normal liver parenchyma in postangiographic CT from that in conventional CT were classified as 3 patterns; no specific changes, increase, or decrease. RESULTS: in 22 cases of hepatoceilular carcinoma, six cases showed no relative density change, four cases increase, and twelve cases decrease. In ten cases of cholangiocarcinoma, one case showed no change, nine cases increase. In nine cases of metastasis, four cases showed no change, five cases increase. In nine cases of hemangioma, all cases showed increase. CONCLUSION: In postangiographic CT which emphasize the significance of postequilibrium and delayed phase, other hemodynamic changes undetected in angiography could more easily be comprehended. Considering the differing amount of consumed contrast media and time duration, and with reference of other imaging modalities, differential diagnosis of hepatic masses based on longterm hemodynamics could easily be made.
Angiography ; Carcinoma, Hepatocellular ; Cholangiocarcinoma ; Contrast Media ; Diagnosis, Differential ; Hemangioma ; Hemangioma, Cavernous ; Hemodynamics ; Liver ; Neoplasm Metastasis ; Specific Gravity

A forty-seven-year-old male miner complained of paresthesia over right hypothenar area and ring and little fiugers for 3 months. On physical examination and electromyography, ulnar nerve dysfunction below elbow was noted. Intraoperatively, an anomalous muscle, the epitrochleoanconeus muscle, was found between the triceps muscle and flexor carpi ulnaris muscle, but it was clearly distinguished from them. Resection of the muscle and medial epicondylectomy were performed. The epitrochleoanconeus muscle is an anomalous muscle which arises from the medial epicondyle of the humerus and inserts into the medial border of the olecranon. The reports on ulnar nerve entrapment syndrome by this muscle were rare. On 14 months follow up, the symptoms and signs were improved.
Elbow ; Electromyography ; Follow-Up Studies ; Humans ; Humerus ; Male ; Miners ; Olecranon Process ; Paresthesia ; Physical Examination ; Ulnar Nerve Compression Syndromes ; Ulnar Nerve

No abstract available.
Collagen* ; Heparin* ; Mesangial Cells*

No abstract available.
Collagen* ; Glucose* ; Insulin* ; Mesangial Cells* ; Somatostatin*

Castleman disease is a benign disorder, usually occurring within mediastinum, characterized by proliferation of lymphold tissue. The authors report a rare case of Castleman disease originating from mesenteric root. The tumor was highly vascular, proved by dynamic CT examination and splanchnic angiography.
Angiography ; Giant Lymph Node Hyperplasia* ; Mediastinum

We studied skin thickness of the twelve body sites in 25 post-mortem subjects. The most thinnest and thickest sites of the skin layers are as follows(unit: um) l. In the horny layer, eyelid(13.16+/-5.44) and sole(420.83+182. 25), respectively 2. In the granular, eyelid, posterior ear, abdomen, back, thigh, forearrn(1 layer)and sole(3.4+/-0.59 layers), respectively 3. In the prickle cell layer(to rete ridge), forearm(50. 21+/-15. 36) and sole (174.72+/-84.41), respectively 4. In the prickle cell layer(to papillary dermis), abdomen (33. 05+/-10. 28) and sole (106.13+/-73.62), respectively 5. In the epidermis, eyelid (61.60+/-16.53) and sole (972.00+/-228. 16), rpspectively 6. In the dermis, eyelid(878.08+283. 56) and back(3596.05+/-1306.80), respectively.
Abdomen ; Dermis ; Ear ; Epidermis ; Eyelids ; Skin* ; Thigh