Usefulness of transthoracic lung ultrasound for the diagnosis of mild pneumothorax

The aim of the present study was to investigate the diagnostic accuracy of ultrasonography in the detection of mild pneumothorax using computed tomography (CT) in dogs. Nine adult healthy beagles were included in the study. A thoracic tube was inserted into pleural space at the left thoracic wall, and each dog underwent the examinations in the order of CT, lung ultrasonography, and radiography before the infusion of room air into the pleural space. Two, 3, and 5 mL/kg infusions of room air were sequentially introduced into the pleural space and CT, lung ultrasound, and radiography examinations were performed. Sonographic signs included A-lines, stratosphere, lung sliding, lung point, lung pulse, and reverse sliding signs. Radiographs were evaluated for the absence or presence of a pneumothorax. Lung ultrasound results were more accurate than radiography results for the detection of mild pneumothorax. The overall sensitivity of the sonographic reverse sliding sign was higher than that of other sonographic signs, and its specificity was 100% for detection of mild pneumothorax. Thus, the reverse sliding sign is useful when using lung ultrasonography for diagnosis of mild pneumothorax.

Imaging diagnosis of extrahepatic biliary tract obstruction with acquired portosystemic shunt in a cat / 대한수의학회지

A 2-year-old, spayed female, Korean domestic short-hair cat was presented with depression and vomiting. The patient had history of weight loss lasting seven months. Physical examination revealed icterus in the pinna, oral mucosa, and sclera. Based on ultrasonography and computed tomography, tentative diagnosis was extrahepatic biliary tract obstruction with acquired portosystemic shunt (PSS). Tumor or inflammation of hepatobiliary system was suspected as the cause of obstruction of the common bile duct. But it could not be determined without biopsy. The severely dilated cystic duct was considered to cause portal hypertension and secondary multiple PSS. The patient expired without histopathologic examination.

Imaging diagnosis of hepatic lipidosis in a cat / 대한수의학회지

A 5-year-old intact female Persian cat was referred with anorexia and vomiting. Physical examination revealed icterus in the pinna, oral mucosa, and sclera. Ultrasonography revealed several findings including uniformly hyperechoic hepatic parenchyma compared to adjacent falciform fat, increased attenuation of the ultrasound beam, and poor visualization of intrahepatic vessel borders. Computed tomography revealed hypoattenuation of the hepatic parenchyma with a radiodensity value of

Imaging diagnosis of hepatic lipidosis in a cat

A 5-year-old intact female Persian cat was referred with anorexia and vomiting. Physical examination revealed icterus in the pinna, oral mucosa, and sclera. Ultrasonography revealed several findings including uniformly hyperechoic hepatic parenchyma compared to adjacent falciform fat, increased attenuation of the ultrasound beam, and poor visualization of intrahepatic vessel borders. Computed tomography revealed hypoattenuation of the hepatic parenchyma with a radiodensity value of -60 Hounsfield units. The adjacent intrahepatic vessels appeared hyperattenuated relative to the hepatic parenchyma as if the vessels were contrast-enhanced. Based on ultrasonography and computed tomography results, the cat was tentatively diagnosed as feline hepatic lipidosis.

Imaging diagnosis of extrahepatic biliary tract obstruction with acquired portosystemic shunt in a cat

A 2-year-old, spayed female, Korean domestic short-hair cat was presented with depression and vomiting. The patient had history of weight loss lasting seven months. Physical examination revealed icterus in the pinna, oral mucosa, and sclera. Based on ultrasonography and computed tomography, tentative diagnosis was extrahepatic biliary tract obstruction with acquired portosystemic shunt (PSS). Tumor or inflammation of hepatobiliary system was suspected as the cause of obstruction of the common bile duct. But it could not be determined without biopsy. The severely dilated cystic duct was considered to cause portal hypertension and secondary multiple PSS. The patient expired without histopathologic examination.

Colonic Mucormycosis Mimicking Ischemic Colitis in Kidney Transplant Recipient / 대한이식학회지

Mucormycosis is an extremely rare but potentially life-threatening fungal infection. Mucormycosis of the gastrointestinal tract manifests with features similar to ischemic colitis. A 48-year-old man with end-stage renal disease due to diabetic nephropathy underwent deceased donor kidney transplantation. He complained of abdominal pain and distension on postoperative day 17. A computed tomography (CT) scan revealed symmetrical wall thickening of the ascending colon, which was consistent with ischemic colitis. However, a follow-up CT scan showed a localized wall-off colon perforation in the hepatic flexure and segmental mural gas in the ascending colon. Microscopic examination obtained from a surgical specimen demonstrated numerous fungal hyphae and spores in the mucosa and submucosa. A total colectomy was performed, but the patient died 36 days later due to multiple organ failure, despite antifungal agents. Clinicians should be informed about fungal infection, such as colonic mucormycosis mimicking ischemic colitis, in kidney transplant patients with diabetes mellitus, and treatment should be initiated at the earliest.

Cyclophosphamide therapy for secondary amyloidosis in a patient with juvenile idiopathic arthritis unresponsive to tumor necrosis factor α inhibitor therapy

No abstract available.

Helicobacter apodemus sp. nov., a new Helicobacter species identified from the gastrointestinal tract of striped field mice in Korea

A novel Helicobacter species was identified from the gastrointestinal tract of the Korean striped field mouse (Apodemus agrarius). Biochemical testing, ultrastructure characterization, and 16S rRNA gene sequence analysis suggested that this bacterium represents a distinct taxon. The bacterium was positive for urease activity, susceptible to cephalothin and nalidixic acid, and weakly positive for oxidase and catalase activity. Electron microscopy revealed that the bacterium has spirally curved rod morphology with singular bipolar nonsheathed flagella. Genotypically, the isolated bacterial strains (YMRC 000215, YMRC 000216, and YMRC 000419) were most closely related to a reference strain of Helicobacter mesocricetorum (97.25%, 97.32%, and 97.03% 16S rRNA sequence similarities, respectively). The 16S rRNA sequences of these strains were deposited into GenBank under accession numbers AF284754, AY009129, and AY009130, respectively. We propose the name Helicobacter apodemus for this novel species.

Assessment of experimental saccular aneurysm using selective angiography in common carotid artery of rabbits / 대한해부학회지

In order to study the treatment of aneurysms, the technique of making experimental aneurysms in laboratory animals must be established. In our study, to examine the feasibility of making experimental aneurysm and selective angiography on the common carotid artery in rabbits and to determine the size of experimental aneurysm after surgery, saccular aneurysms were fashioned on the right common carotid artery in 17 rabbits using a vein pouch technique. Selective angiography of the common carotid artery was performed immediately after surgery, and at 1 week, 4 weeks, and 8 weeks after surgery. Also, histological changes in the aneurysms were observed. In 16 rabbits with established successful experimental aneurysm, no differences were found in diet intake and behavior before and after surgery. The patency of the carotid artery was confirmed by selective angiography. The average size of the aneurysm immediately after surgery was similar to that of 1 week postoperatively in selective angiography, however it increased with time at 4weeks and 8 weeks. Histologically, infiltration of inflammatory cells and hemorrhage were found at the junction of the carotid artery and the vein pouch at 1 week, which disappeared at 4 weeks and 8 weeks. This study suggests experimental saccular aneurysm using the vein pouch technique might form aneurysms similar to that of the human in its properties such as increment of size, and selective angiography might be suitable for assessment of experimental aneurysm. Therefore, this animal model may be suitable for investigating new treatment methodologies for human aneurysms.

Prediction of Residual Lesion based on Histopathology and Margin Status of Conization Specimens Related to Post-cone Hysterectomy / 대한산부인과학회잡지

OBJECTIVE: The objective of this study is to evaluate predictive factors for residual lesion after conization in patients with cervical neoplasia. METHODS: we performed retrospective study (between January 1996 and June 2002) and reviewed 146 patients who had undergone cervical conization followed by subsequent hysterectomy. The age and the parity of patients, the histopathology and the status of resection margins of cone specimens were analysed as predictive values of residual lesions. RESULTS: The prevalence rate of positive cone margins were 0%, 15%, 43.4%, and 85.7% respectively in patients with low-grade squamous intraepithelial lesion (LSIL) (n=3), high-grade squamous intraepithelial lesion (HSIL) (n=60), Cervical cancer stage I a1 (CC-I a1) (n=76) and Cervical cancer stage I a2 (CC- I a2) (n=7). The prevalence rates of positive residual lesions in post-cone hysterectomy specimens were 0%, 23.3%, 35.5%, and 100% respectively in those with LSIL, HSIL, CC- I a1, and CC- I a2. Residual lesions were significantly more frequently found in patients with positive cone margin (56.3%) than in those with negative margin (21.4%) (P value=0.000026). Positive predictive values of margin status for the presence of residual lesions were 0% (LSIL), 22.2% (HSIL), 57.6% (CC- I a1) and 100% (CC- I a2). Negative predictive values of margin status for the absence of residual lesions were 100% (LSIL), 76.5% (HSIL), 81.4% (CC- I a1) and 0% (CC- I a2). Only 8.3% (4/48) of patients with positive cone margin had more advanced residual lesions. 9.2% (9/98) of patients with negative margins had invasive residual lesion. CONCLUSION: The prevalence rate of positive cone margin and residual lesion increased with high severity of cervical neoplasia. Patients with positive cone margin had significantly higher chances of having residual lesion than those with negative margin. Free cone margin does not ensure the absence of residual lesion in the remaining cervix. Positive cone margin does not invariably indicate the presence and persistence of more severe residual lesion. Subsequent hysterectomy may be reserved for the patients with invasive cone pathology, concomitant morbid uterine condition, or not reliable for continuous follow-up.

A Case of Plasma Cell Cheilitis / 대한피부과학회지

Plasma cell cheilitis is an idiopathic, benign, inflammatory mucosal condition characterized histologically by a dense band-like infiltrate of plasma cells in the upper dermis of the mucosa. In addition to the lips, the disease can affect the penis, vulva, buccal mucosa, palate, gingiva, tongue, epiglottis, and larynx. Plasma cell cheilitis of the lip appears as a circumscribed, flat to slightly elevated, eroded area, usually on the lower lip of an elderly person. We report a 70-year-old man who had a well-demarcated, erythematous, erosive lesion on his lower lip for 1 year. A biopsy specimen showed an upper dermal infiltrate that consisted mainly of plasma cells. Oral griseofulvin, 500mg/day, was begun, and 8 weeks later the lesion showed marked improvement.

A Case of Nail Changes Secondary to Docetaxel / 대한피부과학회지

Docetaxel is a new taxoid antineoplastic drug widely used for advanced breast cancer , ovarian cancer . Skin and nail toxicity are one of the more frequent nonhematologic adverse reactions. Especially, nail changes include dark pigmentation, subungual hemorrahage, acute paronychia, onycholysis, Beau s line etc. We have observed a striking example of multiple Beau s lines from all fingernails and toenails in a man receiving a docetaxel infusion for treatment of metastatic cancer with unknown-origin.

Treatment of Advanced-Stage Sertoli-Leydig Cell Tumor (SLCT): A Clinicopathologic Study of 1 Case / 대한산부인과학회잡지

Sertoli-Leydig cell tumors belong to the group of sex-cord stromal tumors of the ovary. They account for less than 0.5% of all ovarian tumor. They occur predominantly at premenopausal women and rarely at postmenopausal and prepubertal. Most common symptom is menstrual disorder including vaginal bleeding. This symptom is the results of excessive testosterone production of Leydig cell. Masculinization is occasionally accompanied by this symptom. but approximately 50% of patients with SLCT have no endocrine manifestations. Prognosis prove generally favorable with 5-year survival rate of 70-90%. Recurrence is rare.The majority of these tumors are benign and are unilaterally (97-98%) localized. Surgery varies with patient age, tumor stage, and differentiation from unilateral salpingo-oophorectomy to bilateral salpingo-oophorectomy and total hysterectomy concomitant with pelvic lymph node dissection. Herewith, we experienced a case of treatment advanced-stage Sertoli-Leydig cell tumor with poorly differentiation in that is ascitic and metastatic in a 53 years old menopause woman who has no virilizing symptom. After all the tumor has resulted in fatal outcome despite of surgery and aggressive chemotherapy. Therefore we present it with review of literature.

Treatment of Advanced-Stage Sertoli-Leydig Cell Tumor (SLCT): A Clinicopathologic Study of 1 Case / 대한산부인과학회잡지

Sertoli-Leydig cell tumors belong to the group of sex-cord stromal tumors of the ovary. They account for less than 0.5% of all ovarian tumor. They occur predominantly at premenopausal women and rarely at postmenopausal and prepubertal. Most common symptom is menstrual disorder including vaginal bleeding. This symptom is the results of excessive testosterone production of Leydig cell. Masculinization is occasionally accompanied by this symptom. but approximately 50% of patients with SLCT have no endocrine manifestations. Prognosis prove generally favorable with 5-year survival rate of 70-90%. Recurrence is rare.The majority of these tumors are benign and are unilaterally (97-98%) localized. Surgery varies with patient age, tumor stage, and differentiation from unilateral salpingo-oophorectomy to bilateral salpingo-oophorectomy and total hysterectomy concomitant with pelvic lymph node dissection. Herewith, we experienced a case of treatment advanced-stage Sertoli-Leydig cell tumor with poorly differentiation in that is ascitic and metastatic in a 53 years old menopause woman who has no virilizing symptom. After all the tumor has resulted in fatal outcome despite of surgery and aggressive chemotherapy. Therefore we present it with review of literature.

A Case of Childhood Dermatofibrosarcoma Protuberans / 대한피부과학회지

Dermatofibrosarcoma protuberans(DFSP) is a rare cutaneous tumor, which occurs most commonly on the trunk or the proximal extremities, affects all races and often develops between the second and fifth decades of life. It is uncommon in childhood and is sometimes mistaken for a vascular lesion, as it often presents as a blue macule or small nodule. Histologically, it shows large uniformed spindle shaped cells arranged in a cartwheel or storiform pattern. Recently, the immunohistochemical staining with monoclonal antibody to CD34 is reported to give assistance in the differential diagnosis of DFSP from the fibrous or neural tumors. We report herein a case of childhood DFSP showing CD34 positivity in a 9-year-old girl

A Study of Serum Carnitine Levels in Epileptic Children with Antiepileptic Drugs

PURPOSE: Epileptic patients under prolonged treatment with anticonvulsants such as valproate tend to have low serum carnitine level. The object of this study is to observe the interrelationship between anticonvulsants and serum carnitine level and its related symptoms. METHODS: We measured the serum carnitine levels in 31 epileptic patients (18 males, 13 females) receiving diverse antiepileptic drugs and 32 healthy children (20 males, 12 females) using enzymatic cycling method. RESULTS: 1) Among the control group, total, free, and acyl-carnitine in serum were 50.04+/-11.44, 37.42+/-11.13, and 13.98+/-7.49micro mol/L (mean+/-S.D.), respectively, and no significant differences were observed between age and sex. 2) Among 31 patients with treatment, total serum carnitine level and free carnitine level below 2 standard deviation from the mean control value was not observed. 3) Among 31 patients with treatment, total serum carnitine level below 2 standard deviation from the age matched mean control value was not observed. 4) No significant relationship was observed between the serum carnitine level and the dosage, duration and the serum concentration of the antiepileptic drugs. 5) There were no abnormalities in serum AST, ALT levels among the patients treated. CONCLUSION: Although our study didn't reveal that serum carnitine level can be lowered in patients treated with anticonvulsants such as valproate, many others reported it. So periodic measurement of serum carnitine level before and after treatment with anticonvulsants should be considered.