1.Successful treatment of adjunctive teriparatide therapy for medicationrelated osteonecrosis of the jaw: a report of two cases
Ra-yeon KIM ; Sung ok HONG ; Jae-woong JUNG ; Mu-hang LEE ; Young-kee LEE ; Yu-jin JEE
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2024;50(5):285-291
Medication-related osteonecrosis of the jaw (MRONJ) is a refractory disease that can lead to severe destruction of the jaw. As there is no standard protocol for treating MRONJ, various treatments have been studied. Teriparatide has been used as an adjunct therapy for MRONJ. However, its effectiveness has not been sufficiently demonstrated for use as a standard treatment for MRONJ. This study aimed to demonstrate the efficacy of teriparatide in treating MRONJ by presenting two successfully treated cases. Each patient received teriparatide therapy with surgical intervention. The appropriateness of teriparatide use was evaluated based on the patient’s systemic condition, and the administration of teriparatide was supervised by a physician.Complete resolution of the lesion was observed clinically and radiographically in both patients. The first patient underwent implant placement at the lesion site. Due to its anabolic properties and ability to stimulate bone remodeling, teriparatide is an effective adjunctive pharmacological treatment for bone healing before and after surgery with associated beneficial effects on bone and mucosal healing.
2.A nephroblastoma at renal papilla in a SpragueDawley rat
Tae-Woo KIM ; Yong-Hoon LEE ; Tae-Kyung KIM ; Hye-Joon PARK ; Mu-Jin LEE ; Sung-Jin PARK ; Laehong JO ; Yong-Seok KIM ; Byeongwoo AHN
Journal of Biomedical and Translational Research 2024;25(4):233-238
A protruding mass was identified in the papilla of the right kidney of a 10-week-old male Sprague-Dawley rat. Microscopically, the neoplastic tissues were consisted of epithelial elements, where basophilic neoplastic cells displayed a high nucleus-to-cytoplasm ratio and formed tubular growth patterns characterized by small, elongated, or convoluted tubules.Blastemal elements were often arranged in aggregates or nests, composed of tightly packed basophilic polygonal to spindloid primitive cells. The surrounding interstitial tissue appeared loose and myxomatous. Based on these histological features, the diagnosis was nephroblastoma. Nephroblastoma is considered as an embryonic tumor originated from metanephric blastemal elements in the renal cortex and typically displays characteristic triphasic patterns.Also, this tumor seldom arises from or remains localized to the renal pelvis. To our literaturereview, this is the first nephroblastoma occurred at renal papilla in a rat.
3.A nephroblastoma at renal papilla in a SpragueDawley rat
Tae-Woo KIM ; Yong-Hoon LEE ; Tae-Kyung KIM ; Hye-Joon PARK ; Mu-Jin LEE ; Sung-Jin PARK ; Laehong JO ; Yong-Seok KIM ; Byeongwoo AHN
Journal of Biomedical and Translational Research 2024;25(4):233-238
A protruding mass was identified in the papilla of the right kidney of a 10-week-old male Sprague-Dawley rat. Microscopically, the neoplastic tissues were consisted of epithelial elements, where basophilic neoplastic cells displayed a high nucleus-to-cytoplasm ratio and formed tubular growth patterns characterized by small, elongated, or convoluted tubules.Blastemal elements were often arranged in aggregates or nests, composed of tightly packed basophilic polygonal to spindloid primitive cells. The surrounding interstitial tissue appeared loose and myxomatous. Based on these histological features, the diagnosis was nephroblastoma. Nephroblastoma is considered as an embryonic tumor originated from metanephric blastemal elements in the renal cortex and typically displays characteristic triphasic patterns.Also, this tumor seldom arises from or remains localized to the renal pelvis. To our literaturereview, this is the first nephroblastoma occurred at renal papilla in a rat.
4.Successful treatment of adjunctive teriparatide therapy for medicationrelated osteonecrosis of the jaw: a report of two cases
Ra-yeon KIM ; Sung ok HONG ; Jae-woong JUNG ; Mu-hang LEE ; Young-kee LEE ; Yu-jin JEE
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2024;50(5):285-291
Medication-related osteonecrosis of the jaw (MRONJ) is a refractory disease that can lead to severe destruction of the jaw. As there is no standard protocol for treating MRONJ, various treatments have been studied. Teriparatide has been used as an adjunct therapy for MRONJ. However, its effectiveness has not been sufficiently demonstrated for use as a standard treatment for MRONJ. This study aimed to demonstrate the efficacy of teriparatide in treating MRONJ by presenting two successfully treated cases. Each patient received teriparatide therapy with surgical intervention. The appropriateness of teriparatide use was evaluated based on the patient’s systemic condition, and the administration of teriparatide was supervised by a physician.Complete resolution of the lesion was observed clinically and radiographically in both patients. The first patient underwent implant placement at the lesion site. Due to its anabolic properties and ability to stimulate bone remodeling, teriparatide is an effective adjunctive pharmacological treatment for bone healing before and after surgery with associated beneficial effects on bone and mucosal healing.
5.A nephroblastoma at renal papilla in a SpragueDawley rat
Tae-Woo KIM ; Yong-Hoon LEE ; Tae-Kyung KIM ; Hye-Joon PARK ; Mu-Jin LEE ; Sung-Jin PARK ; Laehong JO ; Yong-Seok KIM ; Byeongwoo AHN
Journal of Biomedical and Translational Research 2024;25(4):233-238
A protruding mass was identified in the papilla of the right kidney of a 10-week-old male Sprague-Dawley rat. Microscopically, the neoplastic tissues were consisted of epithelial elements, where basophilic neoplastic cells displayed a high nucleus-to-cytoplasm ratio and formed tubular growth patterns characterized by small, elongated, or convoluted tubules.Blastemal elements were often arranged in aggregates or nests, composed of tightly packed basophilic polygonal to spindloid primitive cells. The surrounding interstitial tissue appeared loose and myxomatous. Based on these histological features, the diagnosis was nephroblastoma. Nephroblastoma is considered as an embryonic tumor originated from metanephric blastemal elements in the renal cortex and typically displays characteristic triphasic patterns.Also, this tumor seldom arises from or remains localized to the renal pelvis. To our literaturereview, this is the first nephroblastoma occurred at renal papilla in a rat.
6.Successful treatment of adjunctive teriparatide therapy for medicationrelated osteonecrosis of the jaw: a report of two cases
Ra-yeon KIM ; Sung ok HONG ; Jae-woong JUNG ; Mu-hang LEE ; Young-kee LEE ; Yu-jin JEE
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2024;50(5):285-291
Medication-related osteonecrosis of the jaw (MRONJ) is a refractory disease that can lead to severe destruction of the jaw. As there is no standard protocol for treating MRONJ, various treatments have been studied. Teriparatide has been used as an adjunct therapy for MRONJ. However, its effectiveness has not been sufficiently demonstrated for use as a standard treatment for MRONJ. This study aimed to demonstrate the efficacy of teriparatide in treating MRONJ by presenting two successfully treated cases. Each patient received teriparatide therapy with surgical intervention. The appropriateness of teriparatide use was evaluated based on the patient’s systemic condition, and the administration of teriparatide was supervised by a physician.Complete resolution of the lesion was observed clinically and radiographically in both patients. The first patient underwent implant placement at the lesion site. Due to its anabolic properties and ability to stimulate bone remodeling, teriparatide is an effective adjunctive pharmacological treatment for bone healing before and after surgery with associated beneficial effects on bone and mucosal healing.
7.Extraction of mandibular third molars: relationship of preoperative anxiety with body mass index, serum high-sensitivity C-reactive protein levels, and visual analog scale scores and predictors of postoperative complications
Eunjee LEE ; Yu-Jin JEE ; Jaewoong JUNG ; Mu Hang LEE ; Sung ok HONG
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2023;49(5):252-261
Objectives:
Patients undergoing oral surgery exhibit high anxiety, which may elevate their cortisol levels and affect postoperative recovery. Overweight patients are often encountered in the dental clinic due to the increasing prevalence of overweight. We aimed to investigate the relationships between preoperatively assessed body mass index (BMI), serum cortisol and high-sensitivity C-reactive protein (hs-CRP) levels, and visual analog scale (VAS) scores and preoperative anxiety in patients undergoing mandibular third molar (MM3) extraction and to identify predictors of postoperative complications.
Patients and Methods:
We analyzed 43 patients (age, 20-42 years) undergoing MM3 extraction. At the first visit, patients completed the Modified Dental Anxiety Scale (MDAS) and Amsterdam Preoperative Anxiety and Information Scale (APAIS) questionnaires. Their BMI and VAS scores were also calculated. The participants underwent blood tests 1 hour before MM3 extraction. On the first postoperative day, the participants’ VAS scores and serum hs-CRP levels were reevaluated.
Results:
We found that BMI was significantly correlated with preoperative VAS scores. Further, BMI and preoperative hs-CRP levels were significantly correlated among women and patients undergoing extractions of fully impacted MM3s. No correlations were found between serum cortisol and other variables. The preoperative MDAS and VAS scores were significantly positively correlated, especially among patients undergoing extractions of fully impacted MM3s. Multiple linear regression showed that BMI and the eruption status of the MM3 were significant predictors of postoperative hsCRP levels and VAS scores, respectively.
Conclusion
In MM3 removals, patients with higher BMI showed elevated hs-CRP and higher VAS scores before surgery. Patients with higher anxiety among those undergoing extractions of fully impacted MM3s showed higher preoperative VAS scores. The two main predictors of postoperative complications were BMI and MM3 eruption status.
8.Characteristics of COVID-19 Patients Who Progress to Pneumonia on Follow-Up Chest Radiograph: 236 Patients from a Single Isolated Cohort in Daegu, South Korea
Ha Kyung JUNG ; Jin Young KIM ; Mu Sook LEE ; Ji Yeon LEE ; Jae Seok PARK ; Miri HYUN ; Hyun Ah KIM ; Yong Shik KWON ; Sang-Woong CHOI ; Sung Min MOON ; Young Joo SUH
Korean Journal of Radiology 2020;21(11):1265-1272
Objective:
We investigated the prevalence of pneumonia in novel coronavirus disease 2019 (COVID-19) patients using chest radiographs to identify the characteristics of those with initially negative chest radiographs, who were positive for pneumonia on follow-up.
Materials and Methods:
Retrospective cohort data of 236 COVID-19 patients were reviewed. Chest radiography was performed on admission, with serial radiographs obtained until discharge. The ‘positive conversion group’ was defined as patients whose initial chest radiographs were negative but were positive for pneumonia during follow-up. Patients with initially positive chest radiographs were defined as the ‘initial pneumonia group.’ Patients with negative initial and follow-up chest radiographs were defined as the ‘non-pneumonia group.’ Clinical and laboratory findings were compared between groups, and predictors of positive conversion were investigated.
Results:
Among 236 patients, 108 (45.8%) were in the non-pneumonia group, 69 (29.2%) were in the initial pneumonia group, and 59 (25%) were in the positive conversion group. The patients in the ‘initial pneumonia group’ and ‘positive conversion group’ were older, had higher C-reactive protein (CRP) and lactate dehydrogenase levels, and lower absolute lymphocyte counts than those in the ‘non-pneumonia group’ (all p < 0.001). Among patients with negative initial chest radiographs, age ≥ 45 years (odds ratio [OR]: 3.93, 95% confidence interval [CI]: 1.76–8.75, p = 0.001), absolute lymphocyte count < 1500 cells/µL (OR: 2.25, 95% CI: 1.03–4.89,p = 0.041), and CRP > 0.5 mg/dL (OR: 3.91, 95% CI: 1.54–9.91, p = 0.004) were independent predictors for future development of pneumonia.
Conclusion
More than a half of COVID-19 patients initially had normal chest radiographs; however, elderly patients (≥ 45 years of age) with abnormal laboratory findings (elevated CRP and low absolute lymphocyte counts) developed pneumonia on follow-up radiographs.
9.Basal Cell Carcinoma Arising within Seborrheic Keratosis
Chan Yang LEE ; Ji Youn SUNG ; Ki Heon JEONG ; Mu Hyoung LEE
Annals of Dermatology 2019;31(Suppl):S29-S31
No abstract available.
Carcinoma, Basal Cell
;
Keratosis, Seborrheic
10.Basal Cell Carcinoma Arising within Seborrheic Keratosis
Chan Yang LEE ; Ji Youn SUNG ; Ki Heon JEONG ; Mu Hyoung LEE
Annals of Dermatology 2019;31(Suppl 1):S29-S31

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