Drainage of pancreatic abscesses is required for effective control of sepsis. Endoscopic ultrasound (EUS)-guided endoscopic drainage is less invasive than surgery and prevents local complications related to percutaneous drainage. Endoscopic drainage with stent placement in the uncinate process of the pancreas is a technically difficult procedure. We report a case of pancreatic abscess treated by repeated EUS-guided aspiration and intravenous antibiotics without an indwelling drainage catheter or surgical intervention.
Abscess* ; Anti-Bacterial Agents ; Catheters ; Drainage ; Endoscopic Ultrasound-Guided Fine Needle Aspiration ; Pancreas ; Sepsis ; Stents ; Ultrasonography

We report the case of a rectal teratoma. A 62-year-old woman was referred to our department for evaluation of a rectal mass. She had a 3-month history of rectal bleeding and constipation. No palpable mass was detected using digital rectal examination. Colonoscopic examination demonstrated a protruding mass with a broad stalk in the posterior wall about 12 cm from the anal verge. A computed tomography scan showed a mass, which contained calcifications and fatty components, protruding into the rectal lumen. On operation, the mass was located in the upper rectum, and the right lateral portion of the upper rectum was adhesed to the right ovary. Thus, she had undergone a low anterior resection and right oophorectomy. The pathologic results confirmed a teratoma arising in the muscularis mucosa and the submucosa of the rectal wall.
Constipation ; Digital Rectal Examination ; Female ; Hemorrhage ; Humans ; Middle Aged ; Mucous Membrane ; Ovariectomy ; Ovary ; Rectum ; Teratoma*

PURPOSE: Microsatellite instability-high (MSI-H) colorectal cancer (CRC) displays a well-described distinct phenotype, but the true biological significance of MSI-low (L) is still uncertain. To clarify the significance of this MSI-L, we studied the differences between patients with CRC with MSI-H, MSI-L, and microsatellite stability (MSS). METHODS: A total of 723 consecutive patients (429 males and 294 females) who had undergone resections between September 2002 and August 2007 were studied. We analyzed the clinicopathological features, the MSI statuses, and the prognoses of the 723 CRC patients. RESULTS: MSI-H was observed in 54 (7.5%), MSI-L in 27 (3.7%), and MSS in 642 (88.8%) of the 723 colorectal cancer patients. MSI-L and MSS CRC share similar clinicopathological features. A univariate analysis showed no significant differences in overall survival between MSI-L, MSS, and MSI-H. In the multivariate Cox regression analysis, MSI-L was significantly (P=0.036) associated with poorer prognosis compared with MSS tumors, after adjustment for factors previous shown to be associated with the survival based on potentially relevant variables. CONCLUSION: In conclusion, the current study showed no difference in the clinicopathological features of MSI-L versus MSS CRCs. However, in the multivariate analysis, patients with MSI-L CRCs had significantly poorer overall survival. Finally, these findings support the existence of MSI-L CRCs as a distinct category. Thus, further studies are required to explore possible reasons for the adverse prognosis associated with MSI-L cancers.
Calcium Hydroxide ; Colorectal Neoplasms ; Humans ; Male ; Microsatellite Instability ; Microsatellite Repeats ; Multivariate Analysis ; Phenotype ; Prognosis ; Succinimides ; Zinc Oxide

PURPOSE: This study was conducted in order to evaluate effect and efficiency of selective spinal nerve root block for neuropathic pain patients with lower leg radiating pain. MATERIALS AND METHODS: A total of 113 patients were evaluated and follow-up periods were a minimum of 12 months. They were divided into two groups: group A included 41 patients with neuropathic pain and group B included 72 patients with simple lower leg radiating pain. RESULTS: Fourteen (34.1%) patients in group A and 45 (62.5%) patients in group B had favorable results for selective spinal nerve block (p<0.05). Visual analog scale (VAS) was improved from 7.57 to 5.23 at 12 months in group A and from 7.11 to 3.49 at 12 months in group B. CONCLUSION: The initial treatment period for group A was significantly later than in group B. For patients with neuropathic pain and radiculopathy, early assessment was recommended and early selective spinal nerve block could be a good treatment option for neuropathic pain patients.
Follow-Up Studies ; Humans ; Leg ; Neuralgia* ; Radiculopathy* ; Spinal Nerve Roots* ; Spinal Nerves ; Visual Analog Scale

PURPOSE: We wanted to determine the usefullness of ultrasonography for exploring cervical anatomical structures and to compare its results with those of magnetic resonance imaging. MATERIALS AND METHODS: Between May, 2008 and January, 2009, 16 patient (8 male patients and 8 female patients, average age: 55.5 years old) with neck pain following in out patient clinic and who had cervical MRI performed were selected. By using ultrasonography, we measured the shortest distance of the internal carotid artery, internal jugular vein, sternocleidomastoid muscle and longus colli muscle based on the vertebral body of cricoid cartilage. We also measured the thickness of the longus colli muscle. We measured the average length of the shortest distance and thickness of C6 on MRI axial view. RESULTS: The length using ultrasonography showed that the average length was 2.12 cm for the internal carotid artery, 3.04 cm for the internal jugular vein, 4.34 cm for the sternocleidomastoid muscle and 0.68 cm for the longus colli muscle. Cervical MRI was used to measure the same structures. Its results were 2.23 cm for the internal carotid artery, 3.14 cm for the internal jugular vein, 4.39 cm for the sternocleidomastoid muscle and 0.70 cm for the longus colli muscle. We also measured the thickness of the longus colli muscle with ultrasonography and cervical MRI, and the results were 0.77 cm and 0.76 cm, respectively. There was no statistically significant difference between ultrasonography and MRI for the measurement of length, but there was a statistically significant difference for the measurement of thickness. CONCLUSION: There was a significant difference for the measurement of cervical anatomical stuctures using ultrasonography, and especially the longus coli thickness, as compared with that of MRI. Therefore, we suggest that ultrasonography can give more useful information for the diagnosis and treatment of problems in the cervical spinal field.
Carotid Artery, Internal ; Cricoid Cartilage ; Female ; Humans ; Jugular Veins ; Magnetic Resonance Spectroscopy ; Male ; Muscles ; Neck Pain

Background: The P1 method in prosthetic breast reconstruction has the advantage of preventing rippling and ensuring a smooth upper pole contour. This study presents our experience with using an ultrasonic dissection device instead of a monopolar electrocautery device for the P1 method. Methods: Patients who underwent prepectoral breast reconstruction at our institution between June and September 2021 were retrospectively reviewed. Among the 39 breasts analyzed, 17 underwent the P1 procedure using an ultrasonic dissection device for the superior slip of the pectoralis major muscle, while 22 underwent P0 prepectoral breast reconstruction. We compared surgical outcomes, including operative time, presence of rippling, capsular contracture, and animation deformities, and complications such as seroma, hematoma, and mastectomy skin flap necrosis. Results: Patient demographics were comparable between the groups, except for chemotherapy exposure. Rippling occurred more frequently in the P0 group (36.4% vs. 23.5%); however, capsular contracture was absent in the P1 group. Despite these observations, the differences lacked statistical significance. The average operative time was longer in the P1 group than in the P0 group (104.35 minutes vs. 90.05 minutes), although this difference was not statistically significant (P=0.095). There were no instances of postoperative hematoma, infection, implant exchange, animation deformity, or implant explantation in either group. Conclusions Using an ultrasonic energy device for additional dissection in the P1 method was non-inferior in terms of complications such as bleeding, infection, or animation deformity. The ultrasonic device can facilitate safe and effective dissection when elevating the superior pectoralis muscle slip, despite requiring additional operative time.

Background: The P1 method in prosthetic breast reconstruction has the advantage of preventing rippling and ensuring a smooth upper pole contour. This study presents our experience with using an ultrasonic dissection device instead of a monopolar electrocautery device for the P1 method. Methods: Patients who underwent prepectoral breast reconstruction at our institution between June and September 2021 were retrospectively reviewed. Among the 39 breasts analyzed, 17 underwent the P1 procedure using an ultrasonic dissection device for the superior slip of the pectoralis major muscle, while 22 underwent P0 prepectoral breast reconstruction. We compared surgical outcomes, including operative time, presence of rippling, capsular contracture, and animation deformities, and complications such as seroma, hematoma, and mastectomy skin flap necrosis. Results: Patient demographics were comparable between the groups, except for chemotherapy exposure. Rippling occurred more frequently in the P0 group (36.4% vs. 23.5%); however, capsular contracture was absent in the P1 group. Despite these observations, the differences lacked statistical significance. The average operative time was longer in the P1 group than in the P0 group (104.35 minutes vs. 90.05 minutes), although this difference was not statistically significant (P=0.095). There were no instances of postoperative hematoma, infection, implant exchange, animation deformity, or implant explantation in either group. Conclusions Using an ultrasonic energy device for additional dissection in the P1 method was non-inferior in terms of complications such as bleeding, infection, or animation deformity. The ultrasonic device can facilitate safe and effective dissection when elevating the superior pectoralis muscle slip, despite requiring additional operative time.

Background: The P1 method in prosthetic breast reconstruction has the advantage of preventing rippling and ensuring a smooth upper pole contour. This study presents our experience with using an ultrasonic dissection device instead of a monopolar electrocautery device for the P1 method. Methods: Patients who underwent prepectoral breast reconstruction at our institution between June and September 2021 were retrospectively reviewed. Among the 39 breasts analyzed, 17 underwent the P1 procedure using an ultrasonic dissection device for the superior slip of the pectoralis major muscle, while 22 underwent P0 prepectoral breast reconstruction. We compared surgical outcomes, including operative time, presence of rippling, capsular contracture, and animation deformities, and complications such as seroma, hematoma, and mastectomy skin flap necrosis. Results: Patient demographics were comparable between the groups, except for chemotherapy exposure. Rippling occurred more frequently in the P0 group (36.4% vs. 23.5%); however, capsular contracture was absent in the P1 group. Despite these observations, the differences lacked statistical significance. The average operative time was longer in the P1 group than in the P0 group (104.35 minutes vs. 90.05 minutes), although this difference was not statistically significant (P=0.095). There were no instances of postoperative hematoma, infection, implant exchange, animation deformity, or implant explantation in either group. Conclusions Using an ultrasonic energy device for additional dissection in the P1 method was non-inferior in terms of complications such as bleeding, infection, or animation deformity. The ultrasonic device can facilitate safe and effective dissection when elevating the superior pectoralis muscle slip, despite requiring additional operative time.

Background: The P1 method in prosthetic breast reconstruction has the advantage of preventing rippling and ensuring a smooth upper pole contour. This study presents our experience with using an ultrasonic dissection device instead of a monopolar electrocautery device for the P1 method. Methods: Patients who underwent prepectoral breast reconstruction at our institution between June and September 2021 were retrospectively reviewed. Among the 39 breasts analyzed, 17 underwent the P1 procedure using an ultrasonic dissection device for the superior slip of the pectoralis major muscle, while 22 underwent P0 prepectoral breast reconstruction. We compared surgical outcomes, including operative time, presence of rippling, capsular contracture, and animation deformities, and complications such as seroma, hematoma, and mastectomy skin flap necrosis. Results: Patient demographics were comparable between the groups, except for chemotherapy exposure. Rippling occurred more frequently in the P0 group (36.4% vs. 23.5%); however, capsular contracture was absent in the P1 group. Despite these observations, the differences lacked statistical significance. The average operative time was longer in the P1 group than in the P0 group (104.35 minutes vs. 90.05 minutes), although this difference was not statistically significant (P=0.095). There were no instances of postoperative hematoma, infection, implant exchange, animation deformity, or implant explantation in either group. Conclusions Using an ultrasonic energy device for additional dissection in the P1 method was non-inferior in terms of complications such as bleeding, infection, or animation deformity. The ultrasonic device can facilitate safe and effective dissection when elevating the superior pectoralis muscle slip, despite requiring additional operative time.

PURPOSE: Pancreatic neuroendocrine tumors (PNET) are a rare subgroup of tumors. For PNETs, the predictive factors for survival and prognosis are not well known. The purpose of our study was to evaluate the predictive factors for survival and disease progression in PNETs. MATERIALS AND METHODS: We retrospectively analyzed 37 patients who were diagnosed with PNET at Severance Hospital between November 2005 and March 2010. Prognostic factors for survival and disease progression were evaluated using the Kaplan-Meier method. RESULTS: The mean age of the patients was 50.0+/-15.0 years. Eight cases (21.6%) were described as functioning tumors and 29 cases (78.4%) as non-functioning tumors. In univariate analysis of clinical factors, patients with liver metastasis (p=0.002), without resection of primary tumors (p=0.002), or American Joint Committee on Cancer/Union for International Cancer Control (AJCC/UICC) stage III/IV (p=0.002) were more likely to demonstrate shorter overall survival (OS). Patients with bile duct or pancreatic duct invasion (p=0.031), sized-lesions larger than 20 mm (p=0.036), liver metastasis (p=0.020), distant metastasis (p=0.005), lymph node metastasis (p=0.009) or without resection of primary tumors (p=0.020) were more likely to demonstrate shorter progression-free survival (PFS). In multivariate analysis of clinical factors, bile duct or pancreatic duct invasion [p=0.010, hazard ratio (HR)=95.046] and tumor location (non-head of pancreas) (p=0.036, HR=7.381) were confirmed as independent factors for predicting shorter PFS. CONCLUSION: Patients with liver metastasis or without resection of primary tumors were more likely to demonstrate shorter OS. Patients with bile duct or pancreatic duct invasion or tumors located at body or tail of pancreas were more likely to demonstrate shorter PFS.
Bile Ducts ; Disease Progression ; Disease-Free Survival ; Humans ; Joints ; Liver ; Lymph Nodes ; Methods ; Multivariate Analysis ; Neoplasm Metastasis ; Neuroectodermal Tumors, Primitive ; Neuroendocrine Tumors* ; Pancreas ; Pancreatic Ducts ; Prognosis ; Retrospective Studies ; Tail