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Unusual clinical course

#952330

16 May 2026 : Case report  Japan

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

#952330

16 May 2026 : Case report  Japan

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

#952006

15 May 2026 : Case report  China

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

#952006

15 May 2026 : Case report  China

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

#951798

14 May 2026 : Case report  China

A 56-Year-Old Male Farmer From China With Severe Fever With Thrombocytopenia Syndrome and Pulmonary Aspergillosis: A Case Report and Review of Literature

Xiaoheng Lai ORCID logo, Quanyuan Gao, Lifang Wu

DOI: 10.12659/AJCR.951798

Am J Case Rep 2026; 27:e951798

664 909 0

#951798

14 May 2026 : Case report  China

A 56-Year-Old Male Farmer From China With Severe Fever With Thrombocytopenia Syndrome and Pulmonary Aspergillosis: A Case Report and Review of Literature

Xiaoheng Lai ORCID logo, Quanyuan Gao, Lifang Wu

DOI: 10.12659/AJCR.951798

Am J Case Rep 2026; 27:e951798

664 909 0

#952616

14 May 2026 : Case report  Vietnam

Successful Whole-Lung Lavage in Anti–GM-CSF–Negative Pulmonary Alveolar Proteinosis: A Case Report

Hoan Le, Giang Thi Nguyen, Cuong Ngoc Nguyen, Viet Vu Hoang Nguyen, Duong Dong Nguyen, Hang Minh Le, Van Anh Thi Nguyen, Son Hong Chu, Van Anh Thanh Nguyen

DOI: 10.12659/AJCR.952616

Am J Case Rep 2026; 27:e952616

475 1,364 0

#952616

14 May 2026 : Case report  Vietnam

Successful Whole-Lung Lavage in Anti–GM-CSF–Negative Pulmonary Alveolar Proteinosis: A Case Report

Hoan Le, Giang Thi Nguyen, Cuong Ngoc Nguyen, Viet Vu Hoang Nguyen, Duong Dong Nguyen, Hang Minh Le, Van Anh Thi Nguyen, Son Hong Chu, Van Anh Thanh Nguyen

DOI: 10.12659/AJCR.952616

Am J Case Rep 2026; 27:e952616

475 1364 0

#952404

13 May 2026 : Case report  Japan

A 48-Year-Old Man With Diabetic Ketoacidosis, Hypothermia, and Cardiac Arrest Managed With Veno-Arterial Extracorporeal Membrane Oxygenation

Hiromu Masuda, Kenshin Shimono ORCID logo, Ayumu Banfuku, Shota Yamashita, Takahito Ohtonari, Mitsuhito Sato ORCID logo, Shuhei Niiyama

DOI: 10.12659/AJCR.952404

Am J Case Rep 2026; 27:e952404

538 798 0

#952404

13 May 2026 : Case report  Japan

A 48-Year-Old Man With Diabetic Ketoacidosis, Hypothermia, and Cardiac Arrest Managed With Veno-Arterial Extracorporeal Membrane Oxygenation

Hiromu Masuda, Kenshin Shimono ORCID logo, Ayumu Banfuku, Shota Yamashita, Takahito Ohtonari, Mitsuhito Sato ORCID logo, Shuhei Niiyama

DOI: 10.12659/AJCR.952404

Am J Case Rep 2026; 27:e952404

538 798 0

#952160

11 May 2026 : Case report  USA

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

#952160

11 May 2026 : Case report  USA

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

#952237

09 May 2026 : Case report  Indonesia

Uncommon Presentation of Substernal Chylothorax Following Coronary Artery Bypass Grafting Without LIMA Harvest: An Atypical Case

Yan Efrata Sembiring, Fan Maitri Aldian ORCID logo, Jeswant Dillon

DOI: 10.12659/AJCR.952237

Am J Case Rep 2026; 27:e952237

329 525 0

#952237

09 May 2026 : Case report  Indonesia

Uncommon Presentation of Substernal Chylothorax Following Coronary Artery Bypass Grafting Without LIMA Harvest: An Atypical Case

Yan Efrata Sembiring, Fan Maitri Aldian ORCID logo, Jeswant Dillon

DOI: 10.12659/AJCR.952237

Am J Case Rep 2026; 27:e952237

329 525 0

#951614

09 May 2026 : Case report  USA

An Uncommon Presentation of Heyde Syndrome: Absence of Visible Endoscopic Angiodysplasia With Resolution After Transcatheter Aortic Valve Replacement

Ronnie A. Napoles, Cristina Benites ORCID logo, Gabriella Morey, Anthony H. Xu, Luis Santiago Zayas, Kristen Santana ORCID logo, Livasky Concepcion Perez

DOI: 10.12659/AJCR.951614

Am J Case Rep 2026; 27:e951614

438 657 0

#951614

09 May 2026 : Case report  USA

An Uncommon Presentation of Heyde Syndrome: Absence of Visible Endoscopic Angiodysplasia With Resolution After Transcatheter Aortic Valve Replacement

Ronnie A. Napoles, Cristina Benites ORCID logo, Gabriella Morey, Anthony H. Xu, Luis Santiago Zayas, Kristen Santana ORCID logo, Livasky Concepcion Perez

DOI: 10.12659/AJCR.951614

Am J Case Rep 2026; 27:e951614

438 657 0

#952043

08 May 2026 : Case report  Saudi Arabia

Reversible Rituximab-Induced Bronchiectasis: A Pediatric Case Report and Literature Review

Nasser AlHarbi, Ahmed AlEidan ORCID logo, Masheal A. AlZanbagi

DOI: 10.12659/AJCR.952043

Am J Case Rep 2026; 27:e952043

626 852 0

#952043

08 May 2026 : Case report  Saudi Arabia

Reversible Rituximab-Induced Bronchiectasis: A Pediatric Case Report and Literature Review

Nasser AlHarbi, Ahmed AlEidan ORCID logo, Masheal A. AlZanbagi

DOI: 10.12659/AJCR.952043

Am J Case Rep 2026; 27:e952043

626 852 0

#952646

07 May 2026 : Case report  Saudi Arabia

Caught in Transit: Mobile Right Atrial Thrombus in Intermediate-High-Risk Pulmonary Embolism Treated With Half-Dose Alteplase

Wael Gomaa, Khaled Sewify, Eslam Elsayed Abdelshafey, Abdulaziz Alsaher, Ragheb Elmessery, Fadah Alanazi, Adel Azmy, Khalid Al Faraidy ORCID logo

DOI: 10.12659/AJCR.952646

Am J Case Rep 2026; 27:e952646

573 723 0

#952646

07 May 2026 : Case report  Saudi Arabia

Caught in Transit: Mobile Right Atrial Thrombus in Intermediate-High-Risk Pulmonary Embolism Treated With Half-Dose Alteplase

Wael Gomaa, Khaled Sewify, Eslam Elsayed Abdelshafey, Abdulaziz Alsaher, Ragheb Elmessery, Fadah Alanazi, Adel Azmy, Khalid Al Faraidy ORCID logo

DOI: 10.12659/AJCR.952646

Am J Case Rep 2026; 27:e952646

573 723 0

#950570

06 May 2026 : Case report  Poland

IgA-Associated Vasculitis Presenting With Acute Abdominal Syndrome in an Older Patient

Bogumił Libura, Marcel M. Majewski, Katarzyna Pęczek-Bartyzel ORCID logo, Michał Nowicki ORCID logo

DOI: 10.12659/AJCR.950570

Am J Case Rep 2026; 27:e950570

398 620 0

#950570

06 May 2026 : Case report  Poland

IgA-Associated Vasculitis Presenting With Acute Abdominal Syndrome in an Older Patient

Bogumił Libura, Marcel M. Majewski, Katarzyna Pęczek-Bartyzel ORCID logo, Michał Nowicki ORCID logo

DOI: 10.12659/AJCR.950570

Am J Case Rep 2026; 27:e950570

398 620 0

#951890

05 May 2026 : Case report  China

Rigid-Flexible Bronchoscopy With Holmium Laser Cauterization for Pine Nut Shell Removal and Balloon Dilation for Subsequent Bronchial Stenosis in a 16-Month-Old Girl

Danli Wang, Feizhou Zhang, Nan Zhang, Fang Jin, Hujun Wu, Xiaofen Tao, Lei Wu

DOI: 10.12659/AJCR.951890

Am J Case Rep 2026; 27:e951890

388 580 0

#951890

05 May 2026 : Case report  China

Rigid-Flexible Bronchoscopy With Holmium Laser Cauterization for Pine Nut Shell Removal and Balloon Dilation for Subsequent Bronchial Stenosis in a 16-Month-Old Girl

Danli Wang, Feizhou Zhang, Nan Zhang, Fang Jin, Hujun Wu, Xiaofen Tao, Lei Wu

DOI: 10.12659/AJCR.951890

Am J Case Rep 2026; 27:e951890

388 580 0

#951547

04 May 2026 : Case report  Poland

Severe Anemia as a Rare Complication of Traumatic Scalp Arteriovenous Fistula: A Case Report

Szymon R. Mielczarek ORCID logo, Jacek Kleszczyński ORCID logo, Katarzyna Sznajder ORCID logo, Janusz Springer ORCID logo

DOI: 10.12659/AJCR.951547

Am J Case Rep 2026; 27:e951547

354 586 0

#951547

04 May 2026 : Case report  Poland

Severe Anemia as a Rare Complication of Traumatic Scalp Arteriovenous Fistula: A Case Report

Szymon R. Mielczarek ORCID logo, Jacek Kleszczyński ORCID logo, Katarzyna Sznajder ORCID logo, Janusz Springer ORCID logo

DOI: 10.12659/AJCR.951547

Am J Case Rep 2026; 27:e951547

354 586 0

#951971

02 May 2026 : Case report  Saudi Arabia

The Dahl Concept as a Conservative Approach for Anterior Tooth Wear: A Case Report

Mohammed Abdullah Hawthan ORCID logo

DOI: 10.12659/AJCR.951971

Am J Case Rep 2026; 27:e951971

442 1,301 0

#951971

02 May 2026 : Case report  Saudi Arabia

The Dahl Concept as a Conservative Approach for Anterior Tooth Wear: A Case Report

Mohammed Abdullah Hawthan ORCID logo

DOI: 10.12659/AJCR.951971

Am J Case Rep 2026; 27:e951971

442 1301 0

#952419

01 May 2026 : Case report  USA

Unmasking Adrenal Insufficiency in COVID-19: The Diagnostic Challenge of Concomitant Acute Kidney Injury and High Ileostomy Output

Ioanna I. Yglesias Dimadi ORCID logo, Afshan Hussain, Bronson Benno Joseph Raja ORCID logo

DOI: 10.12659/AJCR.952419

Am J Case Rep 2026; 27:e952419

536 871 0

#952419

01 May 2026 : Case report  USA

Unmasking Adrenal Insufficiency in COVID-19: The Diagnostic Challenge of Concomitant Acute Kidney Injury and High Ileostomy Output

Ioanna I. Yglesias Dimadi ORCID logo, Afshan Hussain, Bronson Benno Joseph Raja ORCID logo

DOI: 10.12659/AJCR.952419

Am J Case Rep 2026; 27:e952419

536 871 0

#952205

26 Apr 2026 : Case report  China

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

811 2,353 0

#952205

26 Apr 2026 : Case report  China

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

811 2353 0

#951007

25 Apr 2026 : Case report  China

Streptococcus pyogenes-Induced Necrotizing Pneumonia With Pleural Effusion in a Child: Role of Medical Thoracoscopy

Lei Zhu, Feizhou Zhang, Ting Huang, Fang Jin, Hujun Wu, Xiaofen Tao, Lei Wu, Lanfang Tang

DOI: 10.12659/AJCR.951007

Am J Case Rep 2026; 27:e951007

706 1,140 0

#951007

25 Apr 2026 : Case report  China

Streptococcus pyogenes-Induced Necrotizing Pneumonia With Pleural Effusion in a Child: Role of Medical Thoracoscopy

Lei Zhu, Feizhou Zhang, Ting Huang, Fang Jin, Hujun Wu, Xiaofen Tao, Lei Wu, Lanfang Tang

DOI: 10.12659/AJCR.951007

Am J Case Rep 2026; 27:e951007

706 1140 0

#952266

18 Apr 2026 : Case report  USA

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 ORCID logo

DOI: 10.12659/AJCR.952266

Am J Case Rep 2026; 27:e952266

576 837 0

#952266

18 Apr 2026 : Case report  USA

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 ORCID logo

DOI: 10.12659/AJCR.952266

Am J Case Rep 2026; 27:e952266

576 837 0

#952276

23 Apr 2026 : Case report  Saudi Arabia

Beyond the Usual Course: A Rare Case of Persistent Traumatic Pulmonary Pneumatoceles With 8-Year Favorable Evolution

Zied Chaari ORCID logo, Jaweher Kammoun, Mahabbah Fawaz Almarshdi, Ahmed Soud Alzaid, Rasheed Abdulkareem Al Twiher

DOI: 10.12659/AJCR.952276

Am J Case Rep 2026; 27:e952276

620 778 0

#952276

23 Apr 2026 : Case report  Saudi Arabia

Beyond the Usual Course: A Rare Case of Persistent Traumatic Pulmonary Pneumatoceles With 8-Year Favorable Evolution

Zied Chaari ORCID logo, Jaweher Kammoun, Mahabbah Fawaz Almarshdi, Ahmed Soud Alzaid, Rasheed Abdulkareem Al Twiher

DOI: 10.12659/AJCR.952276

Am J Case Rep 2026; 27:e952276

620 778 0

#951740

20 Apr 2026 : Case report  Japan

Pseudoaneurysm of the Left Renal Segmental Artery With Delayed Detection After Blunt Trauma

Atsuto Kobayashi, Masakazu Nabeta, Nobuhisa Hirayu, Osamu Takasu

DOI: 10.12659/AJCR.951740

Am J Case Rep 2026; 27:e951740

367 610 0

#951740

20 Apr 2026 : Case report  Japan

Pseudoaneurysm of the Left Renal Segmental Artery With Delayed Detection After Blunt Trauma

Atsuto Kobayashi, Masakazu Nabeta, Nobuhisa Hirayu, Osamu Takasu

DOI: 10.12659/AJCR.951740

Am J Case Rep 2026; 27:e951740

367 610 0

#951840

22 Apr 2026 : Case report  China

Spinal Tuberculosis Diagnosed by Metagenomics Capture (MetaCAP) in a Patient Undergoing Maintenance Hemodialysis: A Case Report

Mengyao Song, Zheng Zhang, Haiyan Huang ORCID logo, Zhizhen Zou, Sichun Wen, Yanhai Cui, Shuangxin Liu

DOI: 10.12659/AJCR.951840

Am J Case Rep 2026; 27:e951840

879 1,070 0

#951840

22 Apr 2026 : Case report  China

Spinal Tuberculosis Diagnosed by Metagenomics Capture (MetaCAP) in a Patient Undergoing Maintenance Hemodialysis: A Case Report

Mengyao Song, Zheng Zhang, Haiyan Huang ORCID logo, Zhizhen Zou, Sichun Wen, Yanhai Cui, Shuangxin Liu

DOI: 10.12659/AJCR.951840

Am J Case Rep 2026; 27:e951840

879 1070 0

#950432

09 Apr 2026 : Case report  USA

Efficacy of Ipilimumab and Nivolumab Rechallenge in a Long-Term Melanoma Survivor: A Case Report

A. Maria Vromans ORCID logo, Maria Constantinou

DOI: 10.12659/AJCR.950432

Am J Case Rep 2026; 27:e950432

402 1,310 0

#950432

09 Apr 2026 : Case report  USA

Efficacy of Ipilimumab and Nivolumab Rechallenge in a Long-Term Melanoma Survivor: A Case Report

A. Maria Vromans ORCID logo, Maria Constantinou

DOI: 10.12659/AJCR.950432

Am J Case Rep 2026; 27:e950432

402 1310 0

#951707

16 Apr 2026 : Case report  India

Granulomatosis with Polyangiitis (Wegener Granulomatosis) Presenting as a Pancreatic Mass: A Rare Malignancy Mimic

Soumyadip Sain ORCID logo, Subhashish Das, Vinant Bhargava, Sunila Jain, Samiran Nundy

DOI: 10.12659/AJCR.951707

Am J Case Rep 2026; 27:e951707

546 854 0

#951707

16 Apr 2026 : Case report  India

Granulomatosis with Polyangiitis (Wegener Granulomatosis) Presenting as a Pancreatic Mass: A Rare Malignancy Mimic

Soumyadip Sain ORCID logo, Subhashish Das, Vinant Bhargava, Sunila Jain, Samiran Nundy

DOI: 10.12659/AJCR.951707

Am J Case Rep 2026; 27:e951707

546 854 0

#951228

15 Apr 2026 : Case report  China

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 ORCID logo, Jian-an Huang, Chuanyong Mu

DOI: 10.12659/AJCR.951228

Am J Case Rep 2026; 27:e951228

443 617 0

#951228

15 Apr 2026 : Case report  China

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 ORCID logo, Jian-an Huang, Chuanyong Mu

DOI: 10.12659/AJCR.951228

Am J Case Rep 2026; 27:e951228

443 617 0

#951965

12 Apr 2026 : Case report  Saudi Arabia

Successful Spontaneous Twin Pregnancy Following Bone Marrow Transplant and Gastric Cancer Surgery: A Case Report

Hessa Khalid Sulaiman Almuhaisen ORCID logo, Sara Abdulaziz AlShubat ORCID logo, Ashwaq Nasser AlRaqeeb ORCID logo, Elham Awad Saeed AlQarni ORCID logo

DOI: 10.12659/AJCR.951965

Am J Case Rep 2026; 27:e951965

490 717 0

#951965

12 Apr 2026 : Case report  Saudi Arabia

Successful Spontaneous Twin Pregnancy Following Bone Marrow Transplant and Gastric Cancer Surgery: A Case Report

Hessa Khalid Sulaiman Almuhaisen ORCID logo, Sara Abdulaziz AlShubat ORCID logo, Ashwaq Nasser AlRaqeeb ORCID logo, Elham Awad Saeed AlQarni ORCID logo

DOI: 10.12659/AJCR.951965

Am J Case Rep 2026; 27:e951965

490 717 0

In Press

Case report  Saudi Arabia

Primary Small Cell Neuroendocrine Carcinoma of the Breast in a 75-Year-Old Woman With Aggressive Recurrence...

Am J Case Rep In Press; DOI: 10.12659/AJCR.952443  

Case report  USA

Single-Dose Nivolumab as a Trigger of Myocarditis, Myositis, and Myasthenia Gravis Overlap Syndrome With La...

Am J Case Rep In Press; DOI: 10.12659/AJCR.953173  

Case report  Japan

A 73-Year-Old Man With a Late Isolated Brain Metastasis of Clear Cell Renal Cell Carcinoma Following a Dura...

Am J Case Rep In Press; DOI: 10.12659/AJCR.953192  

Case report  China

Ultrasound Identification of Right Internal Jugular Vein Occlusion After Catheterization in a Premature Infant

Am J Case Rep In Press; DOI: 10.12659/AJCR.952818  

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American Journal of Case Reports eISSN: 1941-5923
American Journal of Case Reports eISSN: 1941-5923