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Articles in E-pub version are posted online ahead of regular printed publication.

Case reports
Traumatic neuroma of the right posterior hepatic duct with an anatomic variation masquerading as malignancy: a case report
Jae Ryong Shim, Tae Beom Lee, Byung Hyun Choi, Je Ho Ryu, Jung Hee Lee, Kwangho Yang
Received October 17, 2022  Accepted December 2, 2022  Published online January 18, 2023  
DOI:    [Epub ahead of print]
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Abstract PDFPubReader   ePub   CrossRef-TDMCrossref - TDM
Traumatic neuroma (TN), also known as amputation neuroma, is a reactive hyperplasia of nerve fibers and connective tissue arising from Schwann cells after trauma or surgery. TN of the bile duct is usually asymptomatic, but rarely can lead to right upper quadrant pain, biliary obstruction, and acute cholangitis. It is very difficult to discriminate TN from malignancy before surgery, although doing so could avoid an unnecessary radical resection of the lesion. In the course of surgery, TN can be caused by unintentional injury of a nerve fiber near the common bile duct (CBD) and heat damage to an artery, complete ligation of an artery, and excessive manipulation of the CBD. Therefore, to prevent TN after cholecystectomy, surgery should be performed carefully with appropriate consideration of anatomic variations, and a cystic duct should not be resected too close to the CBD. The possibility of TN should be considered if a patient who has undergone CBD resection with hepaticojejunostomy or cholecystectomy long ago experiences symptoms of jaundice, cholangitis, or obliteration of the CBD. In this report, we present a case of TN mimicking cholangiocarcinoma that emerged from a cystic duct stump after cholecystectomy.
A case report of a carotid space abscess due to extraluminal migration of a fishbone into the deep cervical space
Tae-Hun Lee, Ki Ju Cho, Seong Jun Won, Jung Je Park
Received November 16, 2022  Accepted November 25, 2022  Published online December 19, 2022  
DOI:    [Epub ahead of print]
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Abstract PDFPubReader   ePub   CrossRef-TDMCrossref - TDM
Laryngopharyngeal foreign bodies are among the cases most frequently encountered by otolaryngologists. Most foreign bodies can be easily removed without any complications. However, surgical removal is required in some cases. Therefore, a delayed diagnosis or misdiagnosis could cause fatal complications for patients who need a surgical approach. We report a rare case of extraluminal migration of a foreign body to the deep cervical space. The foreign body (a fishbone) was removed by a surgical approach. With a literature review, we also propose an algorithm for the management of suspicious foreign bodies in the neck.
Targeted temperature management in a patient with suspected hypoxic-ischemic brain injury after successful resuscitation from cardiac arrest: a case report
Christine Kang, Won Yong Lim, Young-hoon Jung, Jiseok Baik
Received August 26, 2022  Accepted October 28, 2022  Published online December 19, 2022  
DOI:    [Epub ahead of print]
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Abstract PDFPubReader   ePub   CrossRef-TDMCrossref - TDM
Hypoxic-ischemic brain injury (HIBI) after cardiac arrest (CA) is a leading cause of mortality and long-term neurological disorders in survivors. Targeted temperature management (TTM) has been rigorously studied as a way to improve results compared to a normal body temperature for preventing secondary damage after HIBI. We report a case of successful TTM in a patient who was suspected to have HIBI after resuscitation from cardiovascular collapse due to respiratory failure during elective surgery under brachial plexus block with dexmedetomidine and remifentanil infusion. A 27-year-old male patient developed CA due to apnea during orthopedic surgery. TTM was performed in the surgical intensive care unit for 72 hours after resuscitation, and the patient recovered successfully. TTM application immediately after resuscitation from CA in patients with suspected HIBI may be an appropriate treatment.
Development of severe junctional bradycardia after dexmedetomidine infusion in a polypharmacy patient: a case report and literature review
Soeun Jeon, Eunsoo Kim, Sun Hack Lee, Sung In Paek, Hyun-Su Ri, Dowon Lee
Received June 5, 2022  Accepted August 23, 2022  Published online December 7, 2022  
DOI:    [Epub ahead of print]
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Abstract PDFPubReader   ePub   CrossRef-TDMCrossref - TDM
The authors report a case of newly manifested severe junctional bradycardia following dexmedetomidine administration during spinal anesthesia in a polypharmacy patient. A 77-year-old woman receiving multiple medications, including a beta-blocker and a calcium channel blocker, underwent right total knee arthroplasty. After spinal anesthesia, intravenous dexmedetomidine was initiated as a sedative; her heart rate decreased, followed by junctional bradycardia (heart rate, 37–41 beats/min). Dexmedetomidine was discontinued, and a dopamine infusion was initiated. Seven hours after surgery, junctional bradycardia persisted; a temporary transvenous pacemaker was inserted, and the beta-blocker and calcium channel blocker were discontinued. The patient was discharged on postoperative day 11 without any sequelae. Anesthesiologists should be aware of dexmedetomidine’s inhibitory effects on the cardiac conduction system, especially in geriatric patients taking medications with negative chronotropic effects and in combination with neuraxial anesthesia.
Sigmoid colon plexiform neurofibroma as a colonic subepithelial mass: a case report
Hee Won Baek, Eun Jeong Choi, Seung Jung Yu, Myeongpyo Kim, Sang Heon Lee, Sam Ryong Jee, Hyungjoo Baik, Hong Sub Lee
Received July 18, 2022  Accepted September 7, 2022  Published online November 9, 2022  
DOI:    [Epub ahead of print]
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Abstract PDFPubReader   ePub   CrossRef-TDMCrossref - TDM
Plexiform neurofibroma (PN) is an uncommon benign tumor, usually associated with neurofibromatosis type 1. As most PNs involve the craniomaxillofacial region, PN of the colon is very rare. Here we present a case of PN involving the sigmoid colon. A 43-year-old male patient presented to the outpatient clinic for the evaluation of an incidentally discovered sigmoid colon mass. A colonoscopic biopsy was performed for the mass, and the result revealed neuronal proliferation. The patient visited the outpatient clinic a year later with symptoms of abdominal pain and stool caliber change. Biopsy was repeated for the sigmoid colon mass, and the results showed mucosal Schwann cell proliferation and S-100 immunostaining positivity. Computed tomography and magnetic resonance imaging were performed for further evaluation, and neurofibroma or schwannoma was suspected based on the imaging studies. For an accurate diagnosis, the patient underwent surgery to remove the sigmoid colon mass. The final diagnosis of the mass was confirmed as PN. We hereby report a rare case of PN involving the sigmoid colon that could not be diagnosed before surgery.
Disseminated Staphylococcus aureus infection and acute bacterial pericarditis: a case report
Su Hyun Bae, Song-Hyun Lee, Joon-Young Choi, Bong-Joon Kim, Soo-Jin Kim, Sung-Il Im, Hyun-Su Kim, Jung-Ho Heo
Received June 15, 2022  Accepted June 27, 2022  Published online August 16, 2022  
DOI:    [Epub ahead of print]
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Abstract PDFPubReader   ePub   CrossRef-TDMCrossref - TDM
We experienced a case of disseminated Staphylococcus aureus infection with bacterial pericarditis that progressed to septic shock and multiorgan failure despite pericardiocentesis and surgical removal of the original abscess with intensive antibiotic therapy. We report this case because of the patient’s very rare and remarkable echocardiographic findings and highly turbid pericardial effusion.

KMJ : Kosin Medical Journal