Journal of Nippon Medical School最新文献

Large first branchial cyst extending into the parapharyngeal space: A case report.

IF 1.2 4区医学

Journal of Nippon Medical School Pub Date : 2025-03-22 DOI: 10.1272/jnms.JNMS.2025_92-601

Takeshi Matsunobu, Takaomi Kurioka, Kimihiro Okubo

引用次数: 0

Aggravation of Pre-existing Cervical Spondylotic Myelopathy with Limb Paralysis Following Lumbar Puncture: A Case Report.

IF 1.2 4区医学

Journal of Nippon Medical School Pub Date : 2025-03-22 DOI: 10.1272/jnms.JNMS.2025_92-602

Akiko Yamazaki, Masahiro Mishina, Masanori Sakamaki, Takehiko Nagao, Kazumi Kimura

引用次数: 0

Immune checkpoint inhibitor-related immunoglobulin A nephropathy in a patient with advanced head and neck cancer.

IF 1.2 4区医学

Journal of Nippon Medical School Pub Date : 2025-03-22 DOI: 10.1272/jnms.JNMS.2025_92-505

Sae Aratani, Takeshi Matsunobu, Masashi Nakaishi, Akira Shimizu, Tetsuya Kashiwagi, Yukinao Sakai, Kimihiro Okubo, Masato Iwabu

{"title":"Immune checkpoint inhibitor-related immunoglobulin A nephropathy in a patient with advanced head and neck cancer.","authors":"Sae Aratani, Takeshi Matsunobu, Masashi Nakaishi, Akira Shimizu, Tetsuya Kashiwagi, Yukinao Sakai, Kimihiro Okubo, Masato Iwabu","doi":"10.1272/jnms.JNMS.2025_92-505","DOIUrl":"https://doi.org/10.1272/jnms.JNMS.2025_92-505","url":null,"abstract":"Immune checkpoint inhibitors (ICIs) have revolutionized the treatment of many cancers, including cancers of the head and neck. Despite the promising therapeutic efficacy of ICIs, immune-related adverse events (irAEs) are a major concern. Acute tubular injury and interstitial nephritis are the most common irAEs involving the kidneys. The present patient was diagnosed as having advanced papillary squamous cell carcinoma of the head and neck. After failure of the initial treatments, including chemotherapy, nivolumab (programmed death-1 inhibitor) was introduced. Shortly after initial administration of nivolumab, the patient developed acute kidney injury with hematuria and proteinuria. A renal biopsy and his clinical course indicated a diagnosis of ICI-related IgA nephropathy. Although glomerular involvement in irAEs is rare and challenging to treatment, the present patient was successfully treated with steroids, which improved kidney function and led to complete remission, as confirmed by urinalysis.","PeriodicalId":56076,"journal":{"name":"Journal of Nippon Medical School","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143702225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Familial Congenital Ossicular Anomaly: A Case Report.

IF 1.2 4区医学

Journal of Nippon Medical School Pub Date : 2025-03-22 DOI: 10.1272/jnms.JNMS.2025_92-606

Takeshi Matsunobu, Hirotaka Suzuki, Kimihiro Okubo

引用次数: 0

Microtia with coexistent large external auditory canal cholesteatoma: a case report.

IF 1.2 4区医学

Journal of Nippon Medical School Pub Date : 2025-03-22 DOI: 10.1272/jnms.JNMS.2025_92-608

Takeshi Matsunobu, Hirotaka Suzuki, Naoko Sakuma, Ryuji Ohashi, Kimihiro Okuobo

{"title":"Microtia with coexistent large external auditory canal cholesteatoma: a case report.","authors":"Takeshi Matsunobu, Hirotaka Suzuki, Naoko Sakuma, Ryuji Ohashi, Kimihiro Okuobo","doi":"10.1272/jnms.JNMS.2025_92-608","DOIUrl":"https://doi.org/10.1272/jnms.JNMS.2025_92-608","url":null,"abstract":"Microtia is a congenital disorder characterized by an anomaly in the auricle. It is often associated with atresia, stenosis, or obstruction of the external auditory canal. In cases of microtia, the incidence of a normal external auditory canal, congenital external auditory canal stenosis, and congenital complete closure of the external auditory canal (aural atresia) is reported to be 8%, 8%, and 84%, respectively. Congenital stenosis of the external auditory canal can sometimes be accompanied by intractable otorrhea and otalgia, raising the possibility of complications of external auditory canal cholesteatoma. Here, we report a case of an adult with microtia and external auditory canal stenosis who presented to our clinic with complaints of otalgia. A large external auditory canal cholesteatoma was found in the patient's left ear. Although cholesteatoma is common in cases of canal stenosis, its extensive spread within the temporal bone is quite rare. A temporal bone-targeted computed tomography scan revealed a soft tissue shadow in the left external auditory canal with distensible expansion and bony destruction in the upper, anterior, and posterior walls of the external auditory canal. In patients with microtia who experience severe aural pain, the possibility of latent extended cholesteatoma should be considered.","PeriodicalId":56076,"journal":{"name":"Journal of Nippon Medical School","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143702255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Video-Assisted Thoracoscopic Surgery for Catamenial Pneumothorax : A Report of Five Cases Treated by Diaphragm Reefing with and without Chemical Pleurodesis.

IF 1.2 4区医学

Journal of Nippon Medical School Pub Date : 2025-03-22 DOI: 10.1272/jnms.JNMS.2025_92-607

Hirotoshi Kubokura, Yuuya Tomioka, Junichi Okamoto, Naoyuki Yoshino, Jitsuo Usuda

{"title":"Video-Assisted Thoracoscopic Surgery for Catamenial Pneumothorax : A Report of Five Cases Treated by Diaphragm Reefing with and without Chemical Pleurodesis.","authors":"Hirotoshi Kubokura, Yuuya Tomioka, Junichi Okamoto, Naoyuki Yoshino, Jitsuo Usuda","doi":"10.1272/jnms.JNMS.2025_92-607","DOIUrl":"https://doi.org/10.1272/jnms.JNMS.2025_92-607","url":null,"abstract":"Objectives: Catamenial pneumothorax (CP), the most common manifestation of thoracic endometriosis syndrome, is a rare form of primary spontaneous pneumothorax that occurs in women of reproductive age. Although CP is usually treated surgically or with hormonal therapy, there is no standard treatment and recurrence is common. We performed video-assisted thoracoscopic surgery (VATS) for five patients with CP from 2014 to 2023.Methods: Our surgical basic procedure (BP) was as follows. VATS was performed by using one port site for the camera and a 5-cm mini-thoracotomy. Perforated holes or blueberry spots were detected on the diaphragm, and lesions were ligated with an endoscopic loop. After reefing by ligation, the diaphragm was covered with a polyglycolic acid sheet. Three methods were used: (A) BP only (one case); (B) BP with tetracycline plus OK432 (two cases); (C) BP with tetracycline (two cases); because the use of OK432 (an anti-cancer agent) was disallowed in 2019 in our Institutional Review Board rules for patients with benign disease.Results: Age ranged from 33 to 45 years (mean. 38.6±5.1 years), and CP occurred on the right side in all cases. Recurrence occurred in only two of the five cases (one case each for procedures B and C).Conclusion: Our procedure (diaphragm reefing by ligation and covering with a polyglycolic acid sheet) was a more convenient and more effective treatment for CP.","PeriodicalId":56076,"journal":{"name":"Journal of Nippon Medical School","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143702284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Use of Sialendoscopy to Diagnose Sialodochitis Fibrinosa: A Case Report.

IF 1.2 4区医学

Journal of Nippon Medical School Pub Date : 2025-03-22 DOI: 10.1272/jnms.JNMS.2025_92-603

Takeshi Matsunobu, Hirotaka Suzuki, Akira Shimizu, Koji Sakamoto, Kimihiro Okubo

{"title":"Use of Sialendoscopy to Diagnose Sialodochitis Fibrinosa: A Case Report.","authors":"Takeshi Matsunobu, Hirotaka Suzuki, Akira Shimizu, Koji Sakamoto, Kimihiro Okubo","doi":"10.1272/jnms.JNMS.2025_92-603","DOIUrl":"https://doi.org/10.1272/jnms.JNMS.2025_92-603","url":null,"abstract":"First reported by Kussmaul in 1879, sialodochitis fibrinosa is a disease of the parotid and/or submandibular glands that is characterized by pain and diffuse swelling. It is believed to be caused by obstruction of the salivary duct by mucofibrinous plugs and is often misdiagnosed as other types of sialadenitis, such as Sjögren' s syndrome, or sialadenitis caused by bacterial or viral infection. Although specific diagnostic criteria have not been defined, the typical pathological finding of sialodochitis fibrinosa is infiltration of lymphocytes and eosinophils into the interstitium around the salivary ducts. Sialendoscopy, a minimally invasive endoscopic technique, has recently been used to diagnose and treat diseases of the salivary glands. This new technique can be used to irrigate and dilate the salivary gland ducts under direct vision. We successfully used sialendoscopy to diagnose and treat sialodochitis fibrinosa, making this the first reported use of this technique for salivary gland biopsies. Sialendoscopy is a modern approach to salivary gland disorders that was helpful for understanding, diagnosing, and managing sialodochitis fibrinosa.","PeriodicalId":56076,"journal":{"name":"Journal of Nippon Medical School","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143702257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vagal Reflex-Induced Asystole During Suspension Laryngoscopy: A Rare Complication.

IF 1.2 4区医学

Journal of Nippon Medical School Pub Date : 2025-03-22 DOI: 10.1272/jnms.JNMS.2025_92-604

Takeshi Matsunobu, Kimihiro Okubo, Koichiro Saito

{"title":"Vagal Reflex-Induced Asystole During Suspension Laryngoscopy: A Rare Complication.","authors":"Takeshi Matsunobu, Kimihiro Okubo, Koichiro Saito","doi":"10.1272/jnms.JNMS.2025_92-604","DOIUrl":"https://doi.org/10.1272/jnms.JNMS.2025_92-604","url":null,"abstract":"Suspension laryngoscopy is commonly used in diagnostic and operative procedures involving the larynx. This study presents a rare case of asystole during suspension laryngoscopy. A 58-year-old woman with an unremarkable medical history underwent suspension laryngoscopy for a left polypoid vocal cord under general anesthesia. Anesthesia induction and tracheal intubation were performed without complications. However, upon inserting a direct laryngoscope and exposing the larynx, her heart rate gradually decreased and asystole occurred. The direct laryngoscope was immediately removed, and atropine sulfate was injected. Spontaneous circulation was restored after 20 s of asystole. The direct laryngoscope was then re-inserted, and the operation was successfully completed without complications. Asystole was attributed to stimulation of the pharyngolaryngeal mucosa through direct laryngoscope-induced vagal reflex. This case highlights the need for surgeons and anesthesiologists to be aware of this rare but potentially life-threatening complication and emphasizes the importance of vigilant electrocardiography monitoring during direct laryngoscope adjustment.","PeriodicalId":56076,"journal":{"name":"Journal of Nippon Medical School","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143702277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diagnostic Performance of Advanced Tomosynthesis in Patients with Metal Devices in the Affected Knee: A Case Report. 先进断层扫描对患膝关节金属装置患者的诊断效果：病例报告。

IF 1.2 4区医学

Journal of Nippon Medical School Pub Date : 2025-03-07 Epub Date: 2024-06-18 DOI: 10.1272/jnms.JNMS.2025_92-101

Yasushi Oshima, Tokifumi Majima

{"title":"Diagnostic Performance of Advanced Tomosynthesis in Patients with Metal Devices in the Affected Knee: A Case Report.","authors":"Yasushi Oshima, Tokifumi Majima","doi":"10.1272/jnms.JNMS.2025_92-101","DOIUrl":"10.1272/jnms.JNMS.2025_92-101","url":null,"abstract":"Simple radiography is the most frequently and widely available technology to examine bone pathologies. Computed tomography (CT) can evaluate pathologies more accurately in multiple planes and three dimensions; however, radiation exposure is much higher than with simple radiography. In addition, diagnostic ability is decreased for both technologies when metal devices are present. Tomosynthesis is a radiographic technology used to evaluate tissues quasi-three-dimensionally with less radiation exposure. Tomosynthesis technology was recently upgraded to reduce the effects of metal artifacts. This case report compares examination time, medical expense, image resolution, and radiation exposure for upgraded tomosynthesis, simple radiography, CT, and standard tomosynthesis in three patients with metal devices in the affected knees. Examination times were similar for the imaging technologies. Diagnostic performance was better for upgraded tomosynthesis than for simple radiography and standard tomosynthesis, and similar to that for CT. Moreover, radiation exposure and expense were higher for tomosynthesis than for simple radiography but lower than for CT. These findings suggest that upgraded tomosynthesis is the best method for evaluating bone pathology when metal devices are present and radiation exposure must be limited.","PeriodicalId":56076,"journal":{"name":"Journal of Nippon Medical School","volume":" ","pages":"104-110"},"PeriodicalIF":1.2,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141428334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Migraine-Like Headache with Aura Induced by a Small Infarct in the Parieto-Occipital Cortex: A Case Report. 顶枕叶皮层小梗塞诱发的偏头痛样先兆头痛：病例报告。

IF 1.2 4区医学

Journal of Nippon Medical School Pub Date : 2025-03-07 Epub Date: 2024-06-18 DOI: 10.1272/jnms.JNMS.2025_92-103

Hiroyuki Hokama, Yuki Sakamoto, Serika Yamamoto, Mizuho Takahashi, Hiroto Kodera, Akihito Kutsuna, Yosuke Fujisawa, Chikako Nito, Kazumi Kimura

引用次数: 0