Unusual or unexpected effect of treatment

18 May 2026 : Case report
Total Knee Arthroplasty for Secondary Osteoarthritis in Patients With Multiple Hereditary Exostoses: A Case Series
Mitsuyuki Kenai, Naoki Nakano, Masanori Tsubosaka, Tomoyuki Kamenaga, Yuichi Kuroda
, Shinya Hayashi, Ryosuke Kuroda, Tomoyuki Matsumoto
DOI: 10.12659/AJCR.952617
Am J Case Rep 2026; 27:e952617
515 673 0

18 May 2026 : Case report
Total Knee Arthroplasty for Secondary Osteoarthritis in Patients With Multiple Hereditary Exostoses: A Case Series
Mitsuyuki Kenai, Naoki Nakano, Masanori Tsubosaka, Tomoyuki Kamenaga, Yuichi Kuroda
, Shinya Hayashi, Ryosuke Kuroda, Tomoyuki Matsumoto
DOI: 10.12659/AJCR.952617
Am J Case Rep 2026; 27:e952617
515 673 0

17 May 2026 : Case report
A Young Woman With Ulcerative Colitis Presenting With Facial Diplegia, a Variant of Guillain-Barré Syndrome
Rong Wei
, Zhiyan Zhang, Xiaohua Mu, Li Zhou
DOI: 10.12659/AJCR.950263
Am J Case Rep 2026; 27:e950263
429 602 0

17 May 2026 : Case report
A Young Woman With Ulcerative Colitis Presenting With Facial Diplegia, a Variant of Guillain-Barré Syndrome
Rong Wei
, Zhiyan Zhang, Xiaohua Mu, Li Zhou
DOI: 10.12659/AJCR.950263
Am J Case Rep 2026; 27:e950263
429 602 0

16 May 2026 : Case report
Long-Term Response to Pembrolizumab in Metastatic Metaplastic Breast Carcinoma: A Case Report
Yuki Oshima, Takamasa Suzuki, Yumi Fukaya, Keiko Hosoya, Yuko Tanaka, Makoto Wakahara, Yoshihisa Umekita, Yugo Tanaka
DOI: 10.12659/AJCR.952330
Am J Case Rep 2026; 27:e952330
587 821 0

16 May 2026 : Case report
Long-Term Response to Pembrolizumab in Metastatic Metaplastic Breast Carcinoma: A Case Report
Yuki Oshima, Takamasa Suzuki, Yumi Fukaya, Keiko Hosoya, Yuko Tanaka, Makoto Wakahara, Yoshihisa Umekita, Yugo Tanaka
DOI: 10.12659/AJCR.952330
Am J Case Rep 2026; 27:e952330
587 821 0

16 May 2026 : Case report
Successful Management of Colonic Angiodysplasia With Endoscopic Mucosal Resection and Argon Plasma Coagulation
Yuta Yoshino, Ayaka Mitsui
DOI: 10.12659/AJCR.951748
Am J Case Rep 2026; 27:e951748
567 780 0

16 May 2026 : Case report
Successful Management of Colonic Angiodysplasia With Endoscopic Mucosal Resection and Argon Plasma Coagulation
Yuta Yoshino, Ayaka Mitsui
DOI: 10.12659/AJCR.951748
Am J Case Rep 2026; 27:e951748
567 780 0

15 May 2026 : Case report
A 56-Year-Old Woman With Systemic Lupus Erythematosus on Trimethoprim-Sulfamethoxazole Prophylaxis Presenting With Breakthrough Nocardiosis
Ming Lu, Jingwen Zhang, Ying Liu, Feng Nie, Tianyu Zou, Haijun Li, Ping Li, Tianxin Xiang
DOI: 10.12659/AJCR.952006
Am J Case Rep 2026; 27:e952006
474 641 0

15 May 2026 : Case report
A 56-Year-Old Woman With Systemic Lupus Erythematosus on Trimethoprim-Sulfamethoxazole Prophylaxis Presenting With Breakthrough Nocardiosis
Ming Lu, Jingwen Zhang, Ying Liu, Feng Nie, Tianyu Zou, Haijun Li, Ping Li, Tianxin Xiang
DOI: 10.12659/AJCR.952006
Am J Case Rep 2026; 27:e952006
474 641 0

12 May 2026 : Case report
Sleeve Resection of the Right Upper Lobe for Tracheobronchial Metastasis of Hepatocellular Carcinoma With Superior Vena Cava Involvement: A Case Report and Literature Review
Peng Cao, Yulin Wang, Qing Wang, Wei Cai, Rui Zhang
, Zhigang Li, Junfeng Geng
DOI: 10.12659/AJCR.952125
Am J Case Rep 2026; 27:e952125
529 619 0

12 May 2026 : Case report
Sleeve Resection of the Right Upper Lobe for Tracheobronchial Metastasis of Hepatocellular Carcinoma With Superior Vena Cava Involvement: A Case Report and Literature Review
Peng Cao, Yulin Wang, Qing Wang, Wei Cai, Rui Zhang
, Zhigang Li, Junfeng Geng
DOI: 10.12659/AJCR.952125
Am J Case Rep 2026; 27:e952125
529 619 0

11 May 2026 : Case report
Subcarinal Mass: An Unusual Presentation of Granulomatosis With Polyangiitis
Giancarlo Licitra, Alejandro Joglar, William M. Britt, David Krakow, Babar Junaidi
DOI: 10.12659/AJCR.952160
Am J Case Rep 2026; 27:e952160
555 844 0

11 May 2026 : Case report
Subcarinal Mass: An Unusual Presentation of Granulomatosis With Polyangiitis
Giancarlo Licitra, Alejandro Joglar, William M. Britt, David Krakow, Babar Junaidi
DOI: 10.12659/AJCR.952160
Am J Case Rep 2026; 27:e952160
555 844 0

09 May 2026 : Case report
An Uncommon Presentation of Heyde Syndrome: Absence of Visible Endoscopic Angiodysplasia With Resolution After Transcatheter Aortic Valve Replacement
Ronnie A. Napoles, Cristina Benites
, Gabriella Morey, Anthony H. Xu, Luis Santiago Zayas, Kristen Santana
, Livasky Concepcion Perez
DOI: 10.12659/AJCR.951614
Am J Case Rep 2026; 27:e951614
438 657 0

09 May 2026 : Case report
An Uncommon Presentation of Heyde Syndrome: Absence of Visible Endoscopic Angiodysplasia With Resolution After Transcatheter Aortic Valve Replacement
Ronnie A. Napoles, Cristina Benites
, Gabriella Morey, Anthony H. Xu, Luis Santiago Zayas, Kristen Santana
, Livasky Concepcion Perez
DOI: 10.12659/AJCR.951614
Am J Case Rep 2026; 27:e951614
438 657 0

08 May 2026 : Case report
Cutaneous Allodynia Associated With GLP-1RA Tirzepatide for Weight Management: A Case Series
Madhu Parna Chakrabarti
, Steven Han
, Natasha M. Campbell
DOI: 10.12659/AJCR.952158
Am J Case Rep 2026; 27:e952158
1,410 6,281 0

08 May 2026 : Case report
Cutaneous Allodynia Associated With GLP-1RA Tirzepatide for Weight Management: A Case Series
Madhu Parna Chakrabarti
, Steven Han
, Natasha M. Campbell
DOI: 10.12659/AJCR.952158
Am J Case Rep 2026; 27:e952158
1410 6281 0

08 May 2026 : Case report
Reversible Rituximab-Induced Bronchiectasis: A Pediatric Case Report and Literature Review
Nasser AlHarbi, Ahmed AlEidan
, Masheal A. AlZanbagi
DOI: 10.12659/AJCR.952043
Am J Case Rep 2026; 27:e952043
626 852 0

08 May 2026 : Case report
Reversible Rituximab-Induced Bronchiectasis: A Pediatric Case Report and Literature Review
Nasser AlHarbi, Ahmed AlEidan
, Masheal A. AlZanbagi
DOI: 10.12659/AJCR.952043
Am J Case Rep 2026; 27:e952043
626 852 0

04 May 2026 : Case report
Extensive Temporal Bone Necrosis in Petrous Bone Cholesteatoma Complicated by Actinomycosis: A Case Report
Saverio Nicoletti, Giannicola Iannella, Giuseppe Magliulo, Daniela Messineo
, Alessandro Corsi
, Annalisa Pace
DOI: 10.12659/AJCR.950701
Am J Case Rep 2026; 27:e950701
405 587 0

04 May 2026 : Case report
Extensive Temporal Bone Necrosis in Petrous Bone Cholesteatoma Complicated by Actinomycosis: A Case Report
Saverio Nicoletti, Giannicola Iannella, Giuseppe Magliulo, Daniela Messineo
, Alessandro Corsi
, Annalisa Pace
DOI: 10.12659/AJCR.950701
Am J Case Rep 2026; 27:e950701
405 587 0

01 May 2026 : Case report
Retinal Granuloma Progression After Scleral Buckling in Ocular Toxocariasis: A Case Report
Xiaolan Liu, Luyun Liang
, Liyan Ye, Yiqin Duan
DOI: 10.12659/AJCR.950844
Am J Case Rep 2026; 27:e950844
436 620 0

01 May 2026 : Case report
Retinal Granuloma Progression After Scleral Buckling in Ocular Toxocariasis: A Case Report
Xiaolan Liu, Luyun Liang
, Liyan Ye, Yiqin Duan
DOI: 10.12659/AJCR.950844
Am J Case Rep 2026; 27:e950844
436 620 0

30 Apr 2026 : Case report
Clear Cell Renal Cell Carcinoma in a 60-Year-Old Man Arising From Congenital Left-Sided Ectopic Right Kidney (Crossed Fused Renal Ectopia) With Invasion Into the Contralateral Kidney
Shakhawan Hama Amin Said, Mzhda Sahib Jafaar, Goran M. Raouf Abdulqader, Zana Ezzat Hama Karim, Kewan Hussein Shekh Faraj
, Ali Mzhda Mohammed Ali, Aland Salih Abdullah, Diyam Dlshad Hassan, Ahang Mohammed Abdulrahman
DOI: 10.12659/AJCR.952016
Am J Case Rep 2026; 27:e952016
404 589 0

30 Apr 2026 : Case report
Clear Cell Renal Cell Carcinoma in a 60-Year-Old Man Arising From Congenital Left-Sided Ectopic Right Kidney (Crossed Fused Renal Ectopia) With Invasion Into the Contralateral Kidney
Shakhawan Hama Amin Said, Mzhda Sahib Jafaar, Goran M. Raouf Abdulqader, Zana Ezzat Hama Karim, Kewan Hussein Shekh Faraj
, Ali Mzhda Mohammed Ali, Aland Salih Abdullah, Diyam Dlshad Hassan, Ahang Mohammed Abdulrahman
DOI: 10.12659/AJCR.952016
Am J Case Rep 2026; 27:e952016
404 589 0

30 Apr 2026 : Case report
Traumatic Splenic Artery Pseudoaneurysm Managed With Percutaneous Histoacryl (N-butyl-2-cyanoacrylate) Embolization: An Alternative to the Conventional Transcatheter Approach
Glenn Yang Han Ng
, Jasmine Ming Er Chua
, Yong Chen, Luke Michael Han Wei Toh
DOI: 10.12659/AJCR.951818
Am J Case Rep 2026; 27:e951818
386 625 0

30 Apr 2026 : Case report
Traumatic Splenic Artery Pseudoaneurysm Managed With Percutaneous Histoacryl (N-butyl-2-cyanoacrylate) Embolization: An Alternative to the Conventional Transcatheter Approach
Glenn Yang Han Ng
, Jasmine Ming Er Chua
, Yong Chen, Luke Michael Han Wei Toh
DOI: 10.12659/AJCR.951818
Am J Case Rep 2026; 27:e951818
386 625 0

29 Apr 2026 : Case report
A Rare Case of Stevens-Johnson Syndrome in a Young Patient Presenting With Odynophagia Following Antibiotic Use
John Tomasini, Joanna Sajdlowska
, Gregory Crisafulli
, Hillel Ephros
DOI: 10.12659/AJCR.951823
Am J Case Rep 2026; 27:e951823
554 891 0

29 Apr 2026 : Case report
A Rare Case of Stevens-Johnson Syndrome in a Young Patient Presenting With Odynophagia Following Antibiotic Use
John Tomasini, Joanna Sajdlowska
, Gregory Crisafulli
, Hillel Ephros
DOI: 10.12659/AJCR.951823
Am J Case Rep 2026; 27:e951823
554 891 0

27 Apr 2026 : Case report
Management of Bilateral Humeral Head Avascular Necrosis in Sickle Cell Disease Using Surgical Intervention With Adjuvant Hyperbaric Oxygen Therapy: A Case Report
Abdulla A. Aljowder, Waleed Y. Ebrahim, Omar Abusedera, Konouz Alfadhli, Noor Jaragh, Leen Zghaier, Awrad J. Alkhaldi
DOI: 10.12659/AJCR.951902
Am J Case Rep 2026; 27:e951902
670 854 0

27 Apr 2026 : Case report
Management of Bilateral Humeral Head Avascular Necrosis in Sickle Cell Disease Using Surgical Intervention With Adjuvant Hyperbaric Oxygen Therapy: A Case Report
Abdulla A. Aljowder, Waleed Y. Ebrahim, Omar Abusedera, Konouz Alfadhli, Noor Jaragh, Leen Zghaier, Awrad J. Alkhaldi
DOI: 10.12659/AJCR.951902
Am J Case Rep 2026; 27:e951902
670 854 0

18 Apr 2026 : Case report
Cefiderocol Heteroresistance in NDM-Producing Enterobacterales: A Complex Polymicrobial Infection Successfully Salvaged With Ceftazidime-Avibactam Plus Aztreonam
Mustafa Nuaimi, Jonathan Cirillo, Sara Usbosy, Daniel Egan, Amanda Kovacich, Mario Madruga, Stephen J. Carlan
DOI: 10.12659/AJCR.952266
Am J Case Rep 2026; 27:e952266
576 837 0

18 Apr 2026 : Case report
Cefiderocol Heteroresistance in NDM-Producing Enterobacterales: A Complex Polymicrobial Infection Successfully Salvaged With Ceftazidime-Avibactam Plus Aztreonam
Mustafa Nuaimi, Jonathan Cirillo, Sara Usbosy, Daniel Egan, Amanda Kovacich, Mario Madruga, Stephen J. Carlan
DOI: 10.12659/AJCR.952266
Am J Case Rep 2026; 27:e952266
576 837 0

21 Apr 2026 : Case report
Severe Optic Neuroretinitis and Vitreous Hemorrhage in Pediatric Cat-Scratch Disease: A Case With Irreversible Visual Impairment
Satoko Koga, Kie Iida
, Hiromi Onouchi, Masayuki Washizawa, Toshiaki Goseki
DOI: 10.12659/AJCR.952592
Am J Case Rep 2026; 27:e952592
553 920 0

21 Apr 2026 : Case report
Severe Optic Neuroretinitis and Vitreous Hemorrhage in Pediatric Cat-Scratch Disease: A Case With Irreversible Visual Impairment
Satoko Koga, Kie Iida
, Hiromi Onouchi, Masayuki Washizawa, Toshiaki Goseki
DOI: 10.12659/AJCR.952592
Am J Case Rep 2026; 27:e952592
553 920 0

18 Apr 2026 : Case report
Prenatal Diagnosis of Renal Cysts and Diabetes Syndrome (RCAD): A Case Report
Maisa Manasar-Dyrbuś
, Rafał Stojko
, Monika Paul-Samojedny
, Ewa Winkowska
, Jakub Staniczek
DOI: 10.12659/AJCR.951250
Am J Case Rep 2026; 27:e951250
639 910 0

18 Apr 2026 : Case report
Prenatal Diagnosis of Renal Cysts and Diabetes Syndrome (RCAD): A Case Report
Maisa Manasar-Dyrbuś
, Rafał Stojko
, Monika Paul-Samojedny
, Ewa Winkowska
, Jakub Staniczek
DOI: 10.12659/AJCR.951250
Am J Case Rep 2026; 27:e951250
639 910 0

09 Apr 2026 : Case report
Efficacy of Ipilimumab and Nivolumab Rechallenge in a Long-Term Melanoma Survivor: A Case Report
A. Maria Vromans
, Maria Constantinou
DOI: 10.12659/AJCR.950432
Am J Case Rep 2026; 27:e950432
402 1,310 0

09 Apr 2026 : Case report
Efficacy of Ipilimumab and Nivolumab Rechallenge in a Long-Term Melanoma Survivor: A Case Report
A. Maria Vromans
, Maria Constantinou
DOI: 10.12659/AJCR.950432
Am J Case Rep 2026; 27:e950432
402 1310 0

16 Apr 2026 : Case report
Efgartigimod as Rescue Therapy for PD-1 Inhibitor–Associated Myasthenia Gravis, Myocarditis, and Myositis (MMM) Syndrome: A 2-Case Report and Literature Review
Zi-Han Liu, Li-Min Duan, Xiang-Zhi Fang, Wen Jiang, Sheng-Wen Sun, You Shang
, Chao-Lin Huang
, Yin Yuan
DOI: 10.12659/AJCR.951872
Am J Case Rep 2026; 27:e951872
754 1,144 0

16 Apr 2026 : Case report
Efgartigimod as Rescue Therapy for PD-1 Inhibitor–Associated Myasthenia Gravis, Myocarditis, and Myositis (MMM) Syndrome: A 2-Case Report and Literature Review
Zi-Han Liu, Li-Min Duan, Xiang-Zhi Fang, Wen Jiang, Sheng-Wen Sun, You Shang
, Chao-Lin Huang
, Yin Yuan
DOI: 10.12659/AJCR.951872
Am J Case Rep 2026; 27:e951872
754 1144 0

15 Apr 2026 : Case report
Traumatic Complete Occlusion of the Left Main Bronchus Managed by Temporary Placement of a Covered Self-Expandable Metallic Stent: A Case Report
Peisen Wang, Xiaodong Pang, Yili Chen, Lei Gu
, Jian-an Huang, Chuanyong Mu
DOI: 10.12659/AJCR.951228
Am J Case Rep 2026; 27:e951228
443 617 0

15 Apr 2026 : Case report
Traumatic Complete Occlusion of the Left Main Bronchus Managed by Temporary Placement of a Covered Self-Expandable Metallic Stent: A Case Report
Peisen Wang, Xiaodong Pang, Yili Chen, Lei Gu
, Jian-an Huang, Chuanyong Mu
DOI: 10.12659/AJCR.951228
Am J Case Rep 2026; 27:e951228
443 617 0

14 Apr 2026 : Case report
Persistent Bilateral Optic Disc Swelling in Non-Syndromic Retinitis Pigmentosa: A Case Report
Maram Alenazi, Moustafa S. Magliyah, Wael A. Alsakran
DOI: 10.12659/AJCR.951708
Am J Case Rep 2026; 27:e951708
407 645 0

14 Apr 2026 : Case report
Persistent Bilateral Optic Disc Swelling in Non-Syndromic Retinitis Pigmentosa: A Case Report
Maram Alenazi, Moustafa S. Magliyah, Wael A. Alsakran
DOI: 10.12659/AJCR.951708
Am J Case Rep 2026; 27:e951708
407 645 0

13 Apr 2026 : Case report
Heparin and Venoarterial Extracorporeal Membrane Oxygenation in Massive Pulmonary Embolism Management: A Case Report
Dongmei Yang, Yujun Zhang, Guohua Liu, Yixuan Zhao, Min Hao
DOI: 10.12659/AJCR.951235
Am J Case Rep 2026; 27:e951235
448 743 0

13 Apr 2026 : Case report
Heparin and Venoarterial Extracorporeal Membrane Oxygenation in Massive Pulmonary Embolism Management: A Case Report
Dongmei Yang, Yujun Zhang, Guohua Liu, Yixuan Zhao, Min Hao
DOI: 10.12659/AJCR.951235
Am J Case Rep 2026; 27:e951235
448 743 0

12 Apr 2026 : Case report
Successful Spontaneous Twin Pregnancy Following Bone Marrow Transplant and Gastric Cancer Surgery: A Case Report
Hessa Khalid Sulaiman Almuhaisen
, Sara Abdulaziz AlShubat
, Ashwaq Nasser AlRaqeeb
, Elham Awad Saeed AlQarni
DOI: 10.12659/AJCR.951965
Am J Case Rep 2026; 27:e951965
490 717 0

12 Apr 2026 : Case report
Successful Spontaneous Twin Pregnancy Following Bone Marrow Transplant and Gastric Cancer Surgery: A Case Report
Hessa Khalid Sulaiman Almuhaisen
, Sara Abdulaziz AlShubat
, Ashwaq Nasser AlRaqeeb
, Elham Awad Saeed AlQarni
DOI: 10.12659/AJCR.951965
Am J Case Rep 2026; 27:e951965
490 717 0
In Press
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Am J Case Rep In Press; DOI: 10.12659/AJCR.952443
Case report
Am J Case Rep In Press; DOI: 10.12659/AJCR.953173
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Am J Case Rep In Press; DOI: 10.12659/AJCR.953192
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Am J Case Rep In Press; DOI: 10.12659/AJCR.952818
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