Challenging differential diagnosis
06 May 2026 : Case report 
Splenic Marginal Zone Lymphoma as a Vascular-Appearing Mass in a Patient With Sustained Virologic Response to Hepatitis C Therapy
Xu Hao Isaac Tan, Han Ning Yee 
, Kah Wai Clarence Kwan, Alvin Yong Hui Tan , Shawn Kok , Min On Tan
DOI: 10.12659/AJCR.953179
Am J Case Rep 2026; 27:e953179
798 1,348 0
06 May 2026 : Case report
Splenic Marginal Zone Lymphoma as a Vascular-Appearing Mass in a Patient With Sustained Virologic Response to Hepatitis C Therapy
Xu Hao Isaac Tan, Han Ning Yee , Kah Wai Clarence Kwan, Alvin Yong Hui Tan , Shawn Kok , Min On Tan
DOI: 10.12659/AJCR.953179
Am J Case Rep 2026; 27:e953179
798 1348 0
05 May 2026 : Case report 
Congenital Nasal Vestibular Stenosis in an 11-Year-Old: Case Report, Surgical Management, and a Proposal for Refined Nomenclature
Jingjing Guo, Shenghao Niu, Zetao Qian, Kai Ji, Hanghang Zhou, Xiaorong Lu, Xuan-Fen Zhang
DOI: 10.12659/AJCR.951330
Am J Case Rep 2026; 27:e951330
717 2,239 0
05 May 2026 : Case report
Congenital Nasal Vestibular Stenosis in an 11-Year-Old: Case Report, Surgical Management, and a Proposal for Refined Nomenclature
Jingjing Guo, Shenghao Niu, Zetao Qian, Kai Ji, Hanghang Zhou, Xiaorong Lu, Xuan-Fen Zhang
DOI: 10.12659/AJCR.951330
Am J Case Rep 2026; 27:e951330
717 2239 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
763 1,418 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
763 1418 0
03 May 2026 : Case report 
An Unexpected Cause of Marathon Dyspnea: A Diagnostic Challenge in an Amateur Athlete
Martyna Świerkowska, Małgorzata Kurpaska , Paweł Krzesiński , Katarzyna Piotrowicz
DOI: 10.12659/AJCR.951838
Am J Case Rep 2026; 27:e951838
812 1,486 0
03 May 2026 : Case report
An Unexpected Cause of Marathon Dyspnea: A Diagnostic Challenge in an Amateur Athlete
Martyna Świerkowska, Małgorzata Kurpaska , Paweł Krzesiński , Katarzyna Piotrowicz
DOI: 10.12659/AJCR.951838
Am J Case Rep 2026; 27:e951838
812 1486 0
02 May 2026 : Case report 
The Dahl Concept as a Conservative Approach for Anterior Tooth Wear: A Case Report
Mohammed Abdullah Hawthan
DOI: 10.12659/AJCR.951971
Am J Case Rep 2026; 27:e951971
1,011 4,287 0
02 May 2026 : Case report
The Dahl Concept as a Conservative Approach for Anterior Tooth Wear: A Case Report
Mohammed Abdullah Hawthan
DOI: 10.12659/AJCR.951971
Am J Case Rep 2026; 27:e951971
1011 4287 0
01 May 2026 : Case report 
Unmasking Adrenal Insufficiency in COVID-19: The Diagnostic Challenge of Concomitant Acute Kidney Injury and High Ileostomy Output
Ioanna I. Yglesias Dimadi , Afshan Hussain, Bronson Benno Joseph Raja
DOI: 10.12659/AJCR.952419
Am J Case Rep 2026; 27:e952419
941 2,027 0
01 May 2026 : Case report
Unmasking Adrenal Insufficiency in COVID-19: The Diagnostic Challenge of Concomitant Acute Kidney Injury and High Ileostomy Output
Ioanna I. Yglesias Dimadi , Afshan Hussain, Bronson Benno Joseph Raja
DOI: 10.12659/AJCR.952419
Am J Case Rep 2026; 27:e952419
941 2027 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
753 1,500 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
753 1500 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
795 1,581 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
795 1581 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
979 1,771 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
979 1771 0
28 Apr 2026 : Case report 
Prosthesis-Free Repair of Partial Atrioventricular Septal Defect in Down Syndrome: A Valve-Sparing Technique
Živojin S. Jonjev , Aleksandar M. Milosavljevic , Mirko Todić , Jovan Rajić, Kristina Jonjev
DOI: 10.12659/AJCR.951886
Am J Case Rep 2026; 27:e951886
794 1,376 0
28 Apr 2026 : Case report
Prosthesis-Free Repair of Partial Atrioventricular Septal Defect in Down Syndrome: A Valve-Sparing Technique
Živojin S. Jonjev , Aleksandar M. Milosavljevic , Mirko Todić , Jovan Rajić, Kristina Jonjev
DOI: 10.12659/AJCR.951886
Am J Case Rep 2026; 27:e951886
794 1376 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
1,419 2,014 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
1419 2014 0
27 Apr 2026 : Case report
Gastric Sarcoidosis Masquerading as Gastroesophageal Reflux Disease: A Case of Diagnostic Uncertainty and Conservative Management
Olanrewaju Adeniran , Abdullahi Sulaiman, Megan Willard
DOI: 10.12659/AJCR.951952
Am J Case Rep 2026; 27:e951952
1,348 2,718 0
27 Apr 2026 : Case report
Gastric Sarcoidosis Masquerading as Gastroesophageal Reflux Disease: A Case of Diagnostic Uncertainty and Conservative Management
Olanrewaju Adeniran , Abdullahi Sulaiman, Megan Willard
DOI: 10.12659/AJCR.951952
Am J Case Rep 2026; 27:e951952
1348 2718 0
26 Apr 2026 : Case report
Metformin-Associated Functional Vitamin B12 Deficiency Presenting as Subacute Combined Degeneration in a 57-Year-Old Man With Diabetes Mellitus
Ruixiang Zhang, Luoning Gou, Xinrong Zhou
DOI: 10.12659/AJCR.952205
Am J Case Rep 2026; 27:e952205
1,540 4,423 0
26 Apr 2026 : Case report
Metformin-Associated Functional Vitamin B12 Deficiency Presenting as Subacute Combined Degeneration in a 57-Year-Old Man With Diabetes Mellitus
Ruixiang Zhang, Luoning Gou, Xinrong Zhou
DOI: 10.12659/AJCR.952205
Am J Case Rep 2026; 27:e952205
1540 4423 0
24 Apr 2026 : Case report
Diagnostic and Treatment Strategies for Adult Non-Ossifying Fibromas: A Case Report and Literature Review
Zhibin Zhao, Jiawei Li, Shaoke Wu
DOI: 10.12659/AJCR.951665
Am J Case Rep 2026; 27:e951665
1,631 5,890 0
24 Apr 2026 : Case report
Diagnostic and Treatment Strategies for Adult Non-Ossifying Fibromas: A Case Report and Literature Review
Zhibin Zhao, Jiawei Li, Shaoke Wu
DOI: 10.12659/AJCR.951665
Am J Case Rep 2026; 27:e951665
1631 5890 0
24 Apr 2026 : Case report
A 68-Year-Old Man With Neutrophil-Rich Hepatoid Adenocarcinoma of the Gallbladder
Mingxia Chen , Fanhong Kong , Min Wang, Yuanyuan Li, Baojuan Gao
DOI: 10.12659/AJCR.950825
Am J Case Rep 2026; 27:e950825
1,335 1,945 0
24 Apr 2026 : Case report
A 68-Year-Old Man With Neutrophil-Rich Hepatoid Adenocarcinoma of the Gallbladder
Mingxia Chen , Fanhong Kong , Min Wang, Yuanyuan Li, Baojuan Gao
DOI: 10.12659/AJCR.950825
Am J Case Rep 2026; 27:e950825
1335 1945 0
23 Apr 2026 : Case report 
Bacteremia and Liver Failure Due to Non-K1 Escherichia coli With iss Gene in Two Full-Term Infants
Yuuki Shikaze, Shinsuke Mizuno , Ryousuke Bou, Hiroshi Kurosawa , Naoko Imuta, Junichiro Nishi, Masashi Kasai
DOI: 10.12659/AJCR.949819
Am J Case Rep 2026; 27:e949819
1,406 2,041 0
23 Apr 2026 : Case report
Bacteremia and Liver Failure Due to Non-K1 Escherichia coli With iss Gene in Two Full-Term Infants
Yuuki Shikaze, Shinsuke Mizuno , Ryousuke Bou, Hiroshi Kurosawa , Naoko Imuta, Junichiro Nishi, Masashi Kasai
DOI: 10.12659/AJCR.949819
Am J Case Rep 2026; 27:e949819
1406 2041 0
22 Apr 2026 : Case report 
Diagnostic Approaches to Adult Cystic Nephroma: Insights From Two Cases
Madalina Bosoteanu, Raluca Ioana Vodă, Cristian Ionut Orășanu , Luana-Andreea Nurla, Nicolae Ciufu
DOI: 10.12659/AJCR.950808
Am J Case Rep 2026; 27:e950808
1,243 2,739 0
22 Apr 2026 : Case report
Diagnostic Approaches to Adult Cystic Nephroma: Insights From Two Cases
Madalina Bosoteanu, Raluca Ioana Vodă, Cristian Ionut Orășanu , Luana-Andreea Nurla, Nicolae Ciufu
DOI: 10.12659/AJCR.950808
Am J Case Rep 2026; 27:e950808
1243 2739 0
22 Apr 2026 : Case report
Spinal Tuberculosis Diagnosed by Metagenomics Capture (MetaCAP) in a Patient Undergoing Maintenance Hemodialysis: A Case Report
Mengyao Song, Zheng Zhang, Haiyan Huang , Zhizhen Zou, Sichun Wen, Yanhai Cui, Shuangxin Liu
DOI: 10.12659/AJCR.951840
Am J Case Rep 2026; 27:e951840
1,689 2,335 0
22 Apr 2026 : Case report
Spinal Tuberculosis Diagnosed by Metagenomics Capture (MetaCAP) in a Patient Undergoing Maintenance Hemodialysis: A Case Report
Mengyao Song, Zheng Zhang, Haiyan Huang , Zhizhen Zou, Sichun Wen, Yanhai Cui, Shuangxin Liu
DOI: 10.12659/AJCR.951840
Am J Case Rep 2026; 27:e951840
1689 2335 0
19 Apr 2026 : Case report 
Intramuscular Cavernous Hemangioma of the Latissimus Dorsi Muscle: A Rare Presentation of Chronic Musculoskeletal Pain – Case Report
Zhuang-Ying Lee, Terence Ming Kwan Chin, Kin-Fah Chin, Julia Munchar Jajuli, Keh Oon Ong
DOI: 10.12659/AJCR.952352
Am J Case Rep 2026; 27:e952352
728 1,502 0
19 Apr 2026 : Case report
Intramuscular Cavernous Hemangioma of the Latissimus Dorsi Muscle: A Rare Presentation of Chronic Musculoskeletal Pain – Case Report
Zhuang-Ying Lee, Terence Ming Kwan Chin, Kin-Fah Chin, Julia Munchar Jajuli, Keh Oon Ong
DOI: 10.12659/AJCR.952352
Am J Case Rep 2026; 27:e952352
728 1502 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
965 1,825 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
965 1825 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
1,051 1,909 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
1051 1909 0
17 Apr 2026 : Case report
Cocaine–Levamisole-Associated Vasculopathy Mimicking ANCA-Associated Vasculitis and Presenting With Pulmonary–Renal Syndrome Requiring VV-ECMO Support
Zahra Vaezi , Afshin Amini
DOI: 10.12659/AJCR.951159
Am J Case Rep 2026; 27:e951159
798 1,784 0
17 Apr 2026 : Case report
Cocaine–Levamisole-Associated Vasculopathy Mimicking ANCA-Associated Vasculitis and Presenting With Pulmonary–Renal Syndrome Requiring VV-ECMO Support
Zahra Vaezi , Afshin Amini
DOI: 10.12659/AJCR.951159
Am J Case Rep 2026; 27:e951159
798 1784 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
1,270 2,298 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
1270 2298 0
16 Apr 2026 : Case report 
Granulomatosis with Polyangiitis (Wegener Granulomatosis) Presenting as a Pancreatic Mass: A Rare Malignancy Mimic
Soumyadip Sain , Subhashish Das, Vinant Bhargava, Sunila Jain, Samiran Nundy
DOI: 10.12659/AJCR.951707
Am J Case Rep 2026; 27:e951707
896 1,640 0
16 Apr 2026 : Case report
Granulomatosis with Polyangiitis (Wegener Granulomatosis) Presenting as a Pancreatic Mass: A Rare Malignancy Mimic
Soumyadip Sain , Subhashish Das, Vinant Bhargava, Sunila Jain, Samiran Nundy
DOI: 10.12659/AJCR.951707
Am J Case Rep 2026; 27:e951707
896 1640 0
15 Apr 2026 : Case report 
Left-Sided Gallbladder in the Absence of Situs Inversus: Case Report and Surgical Implications
Felipe Fernandes Teles, Gabriela Karabachian Tebar, Bruno Henrique Pieruci Florenzano, Victor Hugo Fernandes Teles, Leandro Miranda Trama, Marcelo Augusto A. F. F. Ribeiro Junior
DOI: 10.12659/AJCR.950307
Am J Case Rep 2026; 27:e950307
731 1,372 0
15 Apr 2026 : Case report
Left-Sided Gallbladder in the Absence of Situs Inversus: Case Report and Surgical Implications
Felipe Fernandes Teles, Gabriela Karabachian Tebar, Bruno Henrique Pieruci Florenzano, Victor Hugo Fernandes Teles, Leandro Miranda Trama, Marcelo Augusto A. F. F. Ribeiro Junior
DOI: 10.12659/AJCR.950307
Am J Case Rep 2026; 27:e950307
731 1372 0
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Am J Case Rep In Press; DOI: 10.12659/AJCR.954405
Case report 
Am J Case Rep In Press; DOI: 10.12659/AJCR.953611
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Am J Case Rep In Press; DOI: 10.12659/AJCR.954016
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Am J Case Rep In Press; DOI: 10.12659/AJCR.954891
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