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1.
World J Hepatol ; 16(2): 286-293, 2024 Feb 27.
Article in English | MEDLINE | ID: mdl-38495284

ABSTRACT

BACKGROUND: Chronic hepatitis C virus (HCV) infection is a major global health concern that leads to liver fibrosis, cirrhosis, and cancer. Regimens containing direct-acting antivirals (DAAs) have become the mainstay of HCV treatment, achieving a high sustained virological response (SVR) with minimal adverse events. CASE SUMMARY: A 74-year-old woman with chronic HCV infection was treated with the DAAs ledipasvir, and sofosbuvir for 12 wk and achieved SVR. Twenty-four weeks after treatment completion, the liver enzyme and serum IgG levels increased, and antinuclear antibody became positive without HCV viremia, suggesting the development of autoimmune hepatitis (AIH). After liver biopsy indicated AIH, a definite AIH diagnosis was made and prednisolone was initiated. The treatment was effective, and the liver enzyme and serum IgG levels normalized. However, multiple strictures of the intrahepatic and extrahepatic bile ducts with dilatation of the peripheral bile ducts appeared on magnetic resonance cholangiopancreatography after 3 years of achieving SVR, which were consistent with primary sclerosing cholangitis. CONCLUSION: The potential risk of developing autoimmune liver diseases after DAA treatment should be considered.

2.
Intern Med ; 2023 Nov 27.
Article in English | MEDLINE | ID: mdl-38008447

ABSTRACT

A 52-year-old man who had been using a proton pump inhibitor (PPI) and a potassium-competitive acid blocker (P-CAB) for 14 years underwent esophagogastroduodenoscopy and was found to have three neuroendocrine tumors (NETs) in the gastric body. Following detailed examinations, parietal cell dysfunction was excluded, and the NETs did not meet the criteria for the Rindi classification types I-III. The lesions were ultimately considered to be associated with the long-term use of the PPI and P-CAB. We performed endoscopic submucosal dissection of the lesions, with no recurrence or new lesions noted after discontinuation of the PPI and P-CAB.

3.
Intern Med ; 62(24): 3619-3624, 2023 Dec 15.
Article in English | MEDLINE | ID: mdl-37164674

ABSTRACT

We herein report a rare case of primary retroperitoneal mucinous cystadenocarcinoma (PRMC) in a 60-year-old man. The patient, who had been treated with infliximab for Crohn's disease of the colon for 13 years, was referred to our hospital for lower back pain. Contrast-enhanced computed tomography (CT) and magnetic resonance imaging revealed multiple cystic lesions in the right retroperitoneum, the calcification of the cyst, and bone lesions. Bone and CT-assisted biopsies of the retroperitoneal lesions revealed poorly differentiated adenocarcinoma. The patient was diagnosed with PRMC with bone metastases using immunohistochemical staining and positron emission tomography/CT.


Subject(s)
Crohn Disease , Cystadenocarcinoma, Mucinous , Retroperitoneal Neoplasms , Male , Humans , Middle Aged , Cystadenocarcinoma, Mucinous/diagnostic imaging , Cystadenocarcinoma, Mucinous/drug therapy , Cystadenocarcinoma, Mucinous/pathology , Infliximab/adverse effects , Crohn Disease/complications , Crohn Disease/drug therapy , Retroperitoneal Neoplasms/diagnostic imaging , Retroperitoneal Neoplasms/drug therapy , Tomography, X-Ray Computed
5.
DEN Open ; 3(1): e211, 2023 Apr.
Article in English | MEDLINE | ID: mdl-36742281

ABSTRACT

Herein, we report two rare basaloid squamous cell carcinoma (BSCC) cases. Esophagogastroduodenoscopy revealed a submucosal tumor-like lesion and a biopsied specimen showed a finding suspected of BSCC in both cases. Both lesions underwent endoscopic submucosal dissection with en bloc resection, and long-term survival was achieved using additional chemoradiotherapy. The standard treatment for BSCC has not been determined, and there are few reports of esophageal BSCC treated using endoscopic resection. Endoscopic submucosal dissection and additional chemoradiotherapy for superficial BSCC may be effective treatment options.

6.
Brain Nerve ; 73(6): 737-740, 2021 Jun.
Article in Japanese | MEDLINE | ID: mdl-34127570

ABSTRACT

A 73-year-old woman with untreated diabetes mellitus visited our emergency department with a 4-day history of progressive headache, fever, and chills. She received trigger point injections (TPI) into the right sternocleidomastoid for exercise-induced ipsilateral shoulder pain, 13 days before admission and into the right trapezius, 6 days before admission. Cerebrospinal fluid (CSF) evaluation revealed pleocytosis with a predominance of neutrophils, as well as elevated protein and reduced glucose levels. Magnetic resonance imaging of the cervical spine revealed inflammatory changes of the right-sided posterior cervical muscles and the right vertebral arch of the C5-C6 vertebrae without contrast enhancement of the right posterior cervical veins. She was diagnosed with bacterial meningitis and suppurative thrombophlebitis, and empiric broad-spectrum antibiotic therapy was administered intravenously. The initial blood culture yielded Streptococcus intermedius; however, CSF culture showed no growth. She recovered completely after a 4-week course of intravenously administered ampicillin and was discharged with oral clindamycin to complete a total 6-week antibiotic course. TPI are widely used as a safe therapeutic strategy associated with few complications, and serious infections are rare. However, clinicians must remain mindful of the possibility of these complications in immunocompromised patients, such as those with diabetes mellitus who undergo TPI. (Received September 18, 2020; Accepted December 21, 2020; Published June 1, 2021).


Subject(s)
Meningitis, Bacterial , Thrombophlebitis , Aged , Female , Fever , Humans , Magnetic Resonance Imaging , Meningitis, Bacterial/drug therapy , Thrombophlebitis/diagnostic imaging , Thrombophlebitis/drug therapy , Trigger Points
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