Restoration of implant-supported fixed dental prosthesis using the automatic abutment superimposition function of the intraoral scanner in partially edentulous patients / 대한치과보철학회지

The digital workflow of optical impressions by the intraoral scanner and CADCAM manufacture of dental prostheses is actively developing. The complex process of traditional impression taking, definite cast fabrication, wax pattern making, and casting has been shortened, and the number of patient’s visits can also be reduced. Advances in intraoral scanner technology have increased the precision and accuracy of optical impression, and its indication is progressively widened toward the long span fixed dental prosthesis. This case report describes the long span implant case, and the operator fully utilized digital workflow such as computer-guided implant surgical template and CAD-CAM produced restoration after the digital impression. The provisional restoration and customized abutments were prepared with the optical impression taken on the same day of implant surgery. Moreover, the final prosthesis was fabricated with the digital scan while utilizing the same customized abutment from the provisional restoration. During the data acquisition step, stl data of customized abutments, previously scanned at the time of provisional restoration delivery, were imported and automatically aligned with digital impression data using an ‘A.I. abutment matching algorithm’ the intraoral scanner software. By using this algorithm, it was possible to obtain the subgingival margin without the gingival retraction or abutment removal. Using the digital intraoral scanner’s advanced functions, the operator could shorten the total treatment time. So that both the patient and the clinician could experience convenient and effective treatment, and it was possible to manufacture a prosthesis with predictability.

A case of hepatoblastoma misdiagnosed as combined hepatocellular carcinoma and cholangiocarcinoma in an adult

Hepatoblastoma usually occurs in children under the age of 2 years, with very few cases reported in adults. We experienced a case of adult hepatoblastoma in a 36-year-old female with chronic hepatitis B . She had experienced sudden onset abdominal pain. Her serum alpha-fetoprotein level was markedly elevated, and abdominal CT showed a 9-cm mass with internal hemorrhage in the right hepatic lobe with hemoperitoneum, so an emergency hepatic central bisectionectomy was performed. The initial histologic examination revealed that the mass mimicked combined hepatocellular carcinoma and cholangiocarcinoma with spindle-cell metaplasia of the cholangiocarcinoma element. Follow-up abdominal CT performed 3 months later showed a 5.5-cm metastatic mass in the left subphrenic area. Laparoscopic splenectomy with mass excision was performed, and hepatoblastoma was confirmed histologically. A histologic re-examination of previously obtained surgical specimens also confirmed the presence of hepatoblastoma. Metastatic hepatoblastoma was found at multiple sites of the abdomen during follow-up, and so chemotherapy with cisplatin, 5-fluorouracil (5-FU), and vincristine was applied, followed by carboplatin and doxorubicin . Despite surgery and postoperative chemotherapy, she died 12 months after symptom onset.

Is Endoscopic Retrograde Cholangiopancreatography Safe in Patients 90 Years of Age and Older?

BACKGROUND/AIMS: This case-control study evaluated the safety and efficacy of endoscopic retrograde cholangiopancreatography (ERCP) in patients 90 years of age and older. METHODS: From January 2005 to August 2011, 5,070 cases of ERCP were performed at our institution. Of these, 43 cases involved patients 90 years of age and older (mean age, 91.7+/-1.9 years). A control group of 129 cases (mean age, 65.7+/-14.8 years) was matched by the patient sex, sphincterotomy, and presence of choledocholithiasis using a propensity score. The patients' medical records were retrospectively reviewed for comorbidity, periampullary diverticulum, urgent procedure, conscious sedation, technical success, procedure duration, ERCP-related complication, and death. RESULTS: Between the case and control groups, there was no significant difference with regard to comorbidity, periampullary diverticulum, and urgent procedure. Conscious sedation was performed significantly less in the patient group versus the control group (28 [65%] vs 119 [92%], respectively; p=0.000). There was no significant difference in the technical success, procedure duration, or ERCP-related complications. In both groups, there was no major bleeding or perforation related to ERCP. Post-ERCP pancreatitis occurred significantly less in the patient group compared to the control group (0 vs 13 [10%], respectively; p=0.004). One death occurred from respiratory arrest in the case group. CONCLUSIONS: ERCP can be performed safely and successfully in patients aged 90 years and older without any significant increase in complications.

A case of Sweet syndrome involving the central nervous system / 대한내과학회지

Sweet syndrome is an unusual disease characterized by the sudden onset of fever, leukocytosis, and painful erythematous plaques, and the dermal infiltration of neutrophils at the site of skin lesions. Although Sweet syndrome can also present with extra-cutaneous manifestations, involvement of the central nervous system (CNS) is rarely reported. We describe a case of Sweet syndrome involving the CNS in a 46-year-old male with a disturbance of consciousness following fever and erythematous skin plaques in the extremities. Cerebrospinal fluid examination disclosed neutrophilic pleocytosis without decreased glucose and protein levels. HLA typing showed B54, which is frequently seen in Sweet syndrome. Brain magnetic resonance imaging showed abnormal signal intensity lesions in the left temporal lobe. Skin biopsy revealed a dense dermal infiltration of neutrophils, which is compatible with Sweet syndrome. The confused mentality, fever, and erythematous skin plaques resolved after the administration of systemic corticosteroids.

Interleukin-10 endogenously expressed in microglia prevents lipopolysaccharide-induced neurodegeneration in the rat cerebral cortex in vivo

A degree of brain inflammation is required for repair of damaged tissue, but excessive inflammation causes neuronal cell death. Here, we observe that IL-10 is expressed in LPS-injected rat cerebral cortex, contributing to neuronal survival. Cells immunopositive for IL-10 were detected as early as 8 h post-injection and persisted for up to 3 d, in parallel with the expression of IL-1beta, TNF-alpha, and iNOS. Double immunofluorescence staining showed that IL-10 expression was localized mainly in activated microglia. Next, we examined the neuroprotective effects of IL-10 using IL-10 neutralizing antibody (IL-10NA). Blockade of IL-10 action caused a significant loss of neurons both 3 d and 7 d after LPS injection. Further, the induction of mRNA species encoding IL-1beta, TNF-alpha, and iNOS, reactive oxygen species (ROS) production, and NADPH oxidase activation, increased after co-injection of LPS and IL-10NA, compared to the levels seen after injection of LPS alone. Taken together, these results clearly suggest that LPS-induced endogenous expression of IL-10 in microglia contributes to neuronal survival by inhibiting brain inflammation.

Remission of Refractory Intestinal Behcet's Disease with Infliximab / 대한류마티스학회지

Behcet's disease is a chronic, relapsing vasculitis of unknown origin that affects nearly all organs. The most frequent extra-oral sites of gastrointestinal involvement are the ileocecal lesion and the colon. The lesions are typically resistant to medical treatment and frequently recur with surgical treatment. We describe a patient who had intestinal Behcet's disease complicated perforation and enterocutanous fistula with a good response to infliximab.

A Case of Tenosynovitis Due to Mycobacterium intracellulare in a Patient with Rheumatoid Arthritis / 감염과화학요법

Nontuberculous mycobacteria are ubiquitous organisms that are frequently present in the water, soil and animal reservoirs. Nontuberculous mycobacterial infections of the musculoskeletal system are rare and usually associated with predisposing factors, such as prior joint disease, trauma, use of intraarticular or oral corticosteroids, or an immunocompromised state. A sixty five-year-old patient with rheumatoid arthritis was hospitalized due to swelling on the left wrist. M. intracellulare was cultured from the aspirated joint fluid. The patient was successfully treated with clarithromycin, ethambutol, and rifampin. We report this case with review, emphasizing high suspicion for nontuberculous mycobacterial infection in patients with predisposing risk factors.

A Case of Tenosynovitis Due to Mycobacterium intracellulare in a Patient with Rheumatoid Arthritis / 감염과화학요법

Nontuberculous mycobacteria are ubiquitous organisms that are frequently present in the water, soil and animal reservoirs. Nontuberculous mycobacterial infections of the musculoskeletal system are rare and usually associated with predisposing factors, such as prior joint disease, trauma, use of intraarticular or oral corticosteroids, or an immunocompromised state. A sixty five-year-old patient with rheumatoid arthritis was hospitalized due to swelling on the left wrist. M. intracellulare was cultured from the aspirated joint fluid. The patient was successfully treated with clarithromycin, ethambutol, and rifampin. We report this case with review, emphasizing high suspicion for nontuberculous mycobacterial infection in patients with predisposing risk factors.

Two Cases of Adult Onset Still's Disease with Concomitant Hemophagocytic Syndrome / 대한류마티스학회지

Adult onset Still's disease is an rare inflammatory disease with the characteristic of fever, skin rash, arthralgia or arthritis, lymphadenopathy, leukocytosis and multiple systemic organ involvement. Its accurate pathogenesis has not been elucidated yet. Its clinical manifestation is also very diverse, from relatively mild symptoms to severe complications such as concomitant infection, liver failure, disseminated intravascular coagulation, myocarditis, adult respiratory distress syndrome, which may lead to death in some cases. Particularly, concomitant hemophagocytic syndrome is rare complication that could induce a fatal outcome. Thus it is important to diagnose early and start treatments. Until now, it has been reported in only one case of adult onset Still's disease in Korea. Here, we report two female cases of adult onset Still's disease with concomitant hemophagocytic syndrome.

A Case of Overlap Syndrome of Dermatomyositis and Sjogren's Syndrome associated with IgA Nephropathy / 대한류마티스학회지

An "overlap syndrome" is used to describe patients who have two or more well-defined connective tissue diseases such as rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), systemic sclerosis (SSc), and polymyositis. Their coexistence is defined clinically and often by specific serologic tests. We report a case of dermatomyositis associated with IgA nephropathy that had overlapping features of Sjogren's syndrome. This dermatomyositis and Sjogren's overlap is a rarely reported overlap syndrome worldwide.

Esophageal Squamous Cell Carcinoma Recurring as a Solitary Renal Mass / Journal of the Korean Cancer Association, 대한암학회지

Herein, a case of solitary, unilateral renal metastasis in a patient with curatively resected thoracic esophageal carcinoma, who achieved a pathological complete remission after neoadjuvant concurrent chemoradiotherapy, is reported. The kidney is the 4th or 5th most common visceral metastasis site of a primary esophageal carcinoma. More than 50% of renal metastases typically show bilateral involvement. Solitary, unilateral renal metastasis is extremely rare. Renal metastases from a primary esophageal carcinoma are usually latent and its diagnosis is very unusual in a live patient. The solitary renal metastasis in this case was not accompanied by metastases to other sites. The value of a nephrectomy in solitary renal metastasis of esophageal cancer is not known due to the rarity of such cases. A nephrectomy could be justified in limited situations, such as with uncertainty of histological diagnosis, severe life-threatening hematuria, which cannot be controlled by embolization, or solitary renal metastasis with a long disease-free interval.

Three Cases of Synchronous Solid Tumor and Multiple Myeloma / Journal of the Korean Cancer Association, 대한암학회지

The association between a multiple myeloma and a secondary solid tumor is not well established. Some reports showed an increased risk of secondary solid neoplasms in multiple myeloma patients, but others have not. Three cases of the synchronous occurrence of multiple myelomas and solid tumors, namely, a small cell carcinoma of the lung, an adenocarcinoma of the colon and a squamous carcinoma of the pyriform sinus were experienced at our hospital. Therefore, herein is reported the clinical courses and treatment results. The stage of multiple myeloma was Durie-Salmon stage I in all of three cases; therefore, the solid tumors were treated as a primary target because the prognosis of early stage multiple myeloma is generally better than that of advanced solid tumor, while a smoldering or stage I myeloma do not need primary therapy until progression of the multiple myeloma. Two patients died of their solid tumors, but one patient is alive.