Challenging differential diagnosis

13 Jul 2026 : Case report
Coexistence of Multiple Myeloma, Mast Cell Hyperplasia, and Low-Level Myeloid Blastocytosis: A Report of a Rare Case
Meng Yang, Qian Wang, Jian Zhang, Hong Jiang, Hongzhi Xu, Kang Lu, Yujie Jiang
DOI: 10.12659/AJCR.952005
Am J Case Rep 2026; 27:e952005
355 411 0

13 Jul 2026 : Case report
Coexistence of Multiple Myeloma, Mast Cell Hyperplasia, and Low-Level Myeloid Blastocytosis: A Report of a Rare Case
Meng Yang, Qian Wang, Jian Zhang, Hong Jiang, Hongzhi Xu, Kang Lu, Yujie Jiang
DOI: 10.12659/AJCR.952005
Am J Case Rep 2026; 27:e952005
355 411 0

12 Jul 2026 : Case report
Infective Endocarditis Presenting With Scalp Allodynia and a Giant Cell Arteritis-Like Vasculitic Phenotype
Ryohei Goto, Hiroki Kojima
, Keiichi Iwanami
DOI: 10.12659/AJCR.952926
Am J Case Rep 2026; 27:e952926
436 407 0

12 Jul 2026 : Case report
Infective Endocarditis Presenting With Scalp Allodynia and a Giant Cell Arteritis-Like Vasculitic Phenotype
Ryohei Goto, Hiroki Kojima
, Keiichi Iwanami
DOI: 10.12659/AJCR.952926
Am J Case Rep 2026; 27:e952926
436 407 0

10 Jul 2026 : Case report
An 18-Year-Old Man with Bleeding From a Meckel's Diverticulum of the Terminal Ileum Diagnosed by 99mTc-Pertechnetate Scintigraphy (Meckel's Scan)
Hasan M. Alswiket
, Rakan S. Alshahrani
, Ibrahim M. Alzahrani, Mosab A. Alarfaj
DOI: 10.12659/AJCR.951726
Am J Case Rep 2026; 27:e951726
445 467 0

10 Jul 2026 : Case report
An 18-Year-Old Man with Bleeding From a Meckel's Diverticulum of the Terminal Ileum Diagnosed by 99mTc-Pertechnetate Scintigraphy (Meckel's Scan)
Hasan M. Alswiket
, Rakan S. Alshahrani
, Ibrahim M. Alzahrani, Mosab A. Alarfaj
DOI: 10.12659/AJCR.951726
Am J Case Rep 2026; 27:e951726
445 467 0

07 Jul 2026 : Case report
Rare Systemic Vasculitides: Polyarteritis Nodosa and Takayasu Arteritis
Rafael de Almeida
, Eduarda da Silveira Cereta
, Leonel Guilherme Brasil Soares
, Mariele Zardin Moraes
, Raida Ahmad Musa Mheisen Husein
DOI: 10.12659/AJCR.951271
Am J Case Rep 2026; 27:e951271
393 559 0

07 Jul 2026 : Case report
Rare Systemic Vasculitides: Polyarteritis Nodosa and Takayasu Arteritis
Rafael de Almeida
, Eduarda da Silveira Cereta
, Leonel Guilherme Brasil Soares
, Mariele Zardin Moraes
, Raida Ahmad Musa Mheisen Husein
DOI: 10.12659/AJCR.951271
Am J Case Rep 2026; 27:e951271
393 559 0

08 Jul 2026 : Case report
Misdiagnosis of Endometrioid Borderline Ovarian Tumors by Intraoperative Frozen Section Pathology: A Case Report and Review of the Literature
Huifen Wang, Hongqin Du
DOI: 10.12659/AJCR.952134
Am J Case Rep 2026; 27:e952134
437 438 0

08 Jul 2026 : Case report
Misdiagnosis of Endometrioid Borderline Ovarian Tumors by Intraoperative Frozen Section Pathology: A Case Report and Review of the Literature
Huifen Wang, Hongqin Du
DOI: 10.12659/AJCR.952134
Am J Case Rep 2026; 27:e952134
437 438 0

06 Jul 2026 : Case report
Vacuum Scaling Drainage in the Treatment of Infected Elbow Charcot Neuroarthropathy: A Case Report and Literature Review
Hongyuan Yang
DOI: 10.12659/AJCR.952838
Am J Case Rep 2026; 27:e952838
421 404 0

06 Jul 2026 : Case report
Vacuum Scaling Drainage in the Treatment of Infected Elbow Charcot Neuroarthropathy: A Case Report and Literature Review
Hongyuan Yang
DOI: 10.12659/AJCR.952838
Am J Case Rep 2026; 27:e952838
421 404 0

04 Jul 2026 : Case report
Dermatitis Artefacta: A Multidisciplinary Approach
Xiaowen Wen
, Xueting Zeng
, Chao Ji
DOI: 10.12659/AJCR.952958
Am J Case Rep 2026; 27:e952958
512 562 0

04 Jul 2026 : Case report
Dermatitis Artefacta: A Multidisciplinary Approach
Xiaowen Wen
, Xueting Zeng
, Chao Ji
DOI: 10.12659/AJCR.952958
Am J Case Rep 2026; 27:e952958
512 562 0

03 Jul 2026 : Case report
Pancreatic Adenocarcinoma Presented as Paraneoplastic Dermatomyositis Complicated with Rhabdomyolysis: Case Report and Review
Jafar Alsheyyab, Hala Ahmad Al-Mahasneh, Shaimaa Y. Al-khalaileh, Hamzah A. Hasan
, Khitam Al-Refu
DOI: 10.12659/AJCR.952839
Am J Case Rep 2026; 27:e952839
766 818 0

03 Jul 2026 : Case report
Pancreatic Adenocarcinoma Presented as Paraneoplastic Dermatomyositis Complicated with Rhabdomyolysis: Case Report and Review
Jafar Alsheyyab, Hala Ahmad Al-Mahasneh, Shaimaa Y. Al-khalaileh, Hamzah A. Hasan
, Khitam Al-Refu
DOI: 10.12659/AJCR.952839
Am J Case Rep 2026; 27:e952839
766 818 0

02 Jul 2026 : Case report
Tacrolimus-Induced Thrombotic Microangiopathy in a Kidney Transplant Recipient After Treatment for Acute Allograft Rejection
Yen-Hao Liao, Ming-Yi Huang
DOI: 10.12659/AJCR.953247
Am J Case Rep 2026; 27:e953247
708 1,344 0

02 Jul 2026 : Case report
Tacrolimus-Induced Thrombotic Microangiopathy in a Kidney Transplant Recipient After Treatment for Acute Allograft Rejection
Yen-Hao Liao, Ming-Yi Huang
DOI: 10.12659/AJCR.953247
Am J Case Rep 2026; 27:e953247
708 1344 0

02 Jul 2026 : Case report
Migrating Needle in Right Ventricle Wall With Purulent Tamponade
Anna Żuk, Maciej Sałagaj
, Sebastian Pszonak, Grzegorz Makowicz
, Aleksander Gajewski, Dariusz Zieliński
, Agata Bilewska, Andrzej Budaj
, Krzysztof Wróbel
DOI: 10.12659/AJCR.953286
Am J Case Rep 2026; 27:e953286
441 446 0

02 Jul 2026 : Case report
Migrating Needle in Right Ventricle Wall With Purulent Tamponade
Anna Żuk, Maciej Sałagaj
, Sebastian Pszonak, Grzegorz Makowicz
, Aleksander Gajewski, Dariusz Zieliński
, Agata Bilewska, Andrzej Budaj
, Krzysztof Wróbel
DOI: 10.12659/AJCR.953286
Am J Case Rep 2026; 27:e953286
441 446 0

01 Jul 2026 : Case report
Acari-Induced Diarrhea in Young Adult Patients: Case Report From Indonesia
Lyana Setiawan
, Jessica Levina
, Taswin Prawira, Yulita Cindra, Jimmy Tandradynata
, Mercy Tiarmauli Panjaitan, Edho Yuwono
, Nurhadi Eko Firmansyah
, Retno Wahyuningsih
DOI: 10.12659/AJCR.952492
Am J Case Rep 2026; 27:e952492
453 490 0

01 Jul 2026 : Case report
Acari-Induced Diarrhea in Young Adult Patients: Case Report From Indonesia
Lyana Setiawan
, Jessica Levina
, Taswin Prawira, Yulita Cindra, Jimmy Tandradynata
, Mercy Tiarmauli Panjaitan, Edho Yuwono
, Nurhadi Eko Firmansyah
, Retno Wahyuningsih
DOI: 10.12659/AJCR.952492
Am J Case Rep 2026; 27:e952492
453 490 0

01 Jul 2026 : Case report
Starvation-Type Euglycemic Ketoacidosis After Unsupervised Tirzepatide Use in a Non-Obese, Non-Diabetic Woman
Eslam Elsayed Abdelshafey
, Khaled Sewify
, Atheer Almutairi, Ragheb Elmessery, Sara Alotaishan
, Yasmin Youssuf Al-Gindan, Manal Ali Ahmad
, Wael Gomaa
DOI: 10.12659/AJCR.952750
Am J Case Rep 2026; 27:e952750
712 929 0

01 Jul 2026 : Case report
Starvation-Type Euglycemic Ketoacidosis After Unsupervised Tirzepatide Use in a Non-Obese, Non-Diabetic Woman
Eslam Elsayed Abdelshafey
, Khaled Sewify
, Atheer Almutairi, Ragheb Elmessery, Sara Alotaishan
, Yasmin Youssuf Al-Gindan, Manal Ali Ahmad
, Wael Gomaa
DOI: 10.12659/AJCR.952750
Am J Case Rep 2026; 27:e952750
712 929 0

28 Jun 2026 : Case report
Management of a Severe Traumatic Intrusion of a Permanent Incisor With Spontaneous Re-Eruption After Maxillary Expansion: A Surgical-Orthodontic Case Report
Claudia Capurro
, Giulia Romanelli, Alessandro Vullo, Nicola Laffi
DOI: 10.12659/AJCR.952814
Am J Case Rep 2026; 27:e952814
436 709 0

28 Jun 2026 : Case report
Management of a Severe Traumatic Intrusion of a Permanent Incisor With Spontaneous Re-Eruption After Maxillary Expansion: A Surgical-Orthodontic Case Report
Claudia Capurro
, Giulia Romanelli, Alessandro Vullo, Nicola Laffi
DOI: 10.12659/AJCR.952814
Am J Case Rep 2026; 27:e952814
436 709 0

26 Jun 2026 : Case report
A Perfect MDS Mimic: Zinc-Driven Copper Deficiency After Gastric Bypass in a Patient Using Denture Adhesive
Farzeen Fatma Syed, Ye Lin Son, Jessica Amos
DOI: 10.12659/AJCR.952171
Am J Case Rep 2026; 27:e952171
587 755 0

26 Jun 2026 : Case report
A Perfect MDS Mimic: Zinc-Driven Copper Deficiency After Gastric Bypass in a Patient Using Denture Adhesive
Farzeen Fatma Syed, Ye Lin Son, Jessica Amos
DOI: 10.12659/AJCR.952171
Am J Case Rep 2026; 27:e952171
587 755 0

30 Jun 2026 : Case report
Delayed Thyroid Metastasis of Lung Adenocarcinoma Mimicking Primary Thyroid Carcinoma: A Case Report
Yen Thi Le
, Hau Xuan Nguyen, Thai Hong Le, Anh Tuan Doan Van, Duong Thai Pham
, Tuan Minh Vu, Hoang Van Nguyen
DOI: 10.12659/AJCR.952744
Am J Case Rep 2026; 27:e952744
599 620 0

30 Jun 2026 : Case report
Delayed Thyroid Metastasis of Lung Adenocarcinoma Mimicking Primary Thyroid Carcinoma: A Case Report
Yen Thi Le
, Hau Xuan Nguyen, Thai Hong Le, Anh Tuan Doan Van, Duong Thai Pham
, Tuan Minh Vu, Hoang Van Nguyen
DOI: 10.12659/AJCR.952744
Am J Case Rep 2026; 27:e952744
599 620 0

29 Jun 2026 : Case report
Intraluminal Appendiceal Migration of an Intrauterine Device Without Appendicitis: A Case Report
Ángel Sánchez Tinajero
, Jusseline Villegas Amador
, Dulce Diana Guerra Aguirre
, Danna Patricia Ruiz Santillán
, María del Carmen Zamora López
, Anita Ríos Pérez
, Juan Ramón Razo Blancas
DOI: 10.12659/AJCR.951714
Am J Case Rep 2026; 27:e951714
464 520 0

29 Jun 2026 : Case report
Intraluminal Appendiceal Migration of an Intrauterine Device Without Appendicitis: A Case Report
Ángel Sánchez Tinajero
, Jusseline Villegas Amador
, Dulce Diana Guerra Aguirre
, Danna Patricia Ruiz Santillán
, María del Carmen Zamora López
, Anita Ríos Pérez
, Juan Ramón Razo Blancas
DOI: 10.12659/AJCR.951714
Am J Case Rep 2026; 27:e951714
464 520 0

24 Jun 2026 : Case report
Coexisting Amyloid Positivity and Probable Dementia With Lewy Bodies in a Patient With Rapid Eye Movement Sleep Behavior Disorder
Jae Hyeok Choi, Seungju Kim, Jaeyeong Bae
, Jiwon Lim
, Youngsoon Yang, Ik Dong Yoo
, Kwang Ik Yang
DOI: 10.12659/AJCR.952151
Am J Case Rep 2026; 27:e952151
562 687 0

24 Jun 2026 : Case report
Coexisting Amyloid Positivity and Probable Dementia With Lewy Bodies in a Patient With Rapid Eye Movement Sleep Behavior Disorder
Jae Hyeok Choi, Seungju Kim, Jaeyeong Bae
, Jiwon Lim
, Youngsoon Yang, Ik Dong Yoo
, Kwang Ik Yang
DOI: 10.12659/AJCR.952151
Am J Case Rep 2026; 27:e952151
562 687 0

27 Jun 2026 : Case report
Depicting Characteristic Staghorn Vessels in Solitary Fibrous Tumor of the Liver With Contrast-Enhanced Ultrasound and Ultrasound Localized Microscopy: A Case Report
Xue Lu
, Yuanqiang Xiao, Lili Wu, Jianning Chen
, An Liu
, Jie Ren, Yinglin Long
DOI: 10.12659/AJCR.952355
Am J Case Rep 2026; 27:e952355
446 591 0

27 Jun 2026 : Case report
Depicting Characteristic Staghorn Vessels in Solitary Fibrous Tumor of the Liver With Contrast-Enhanced Ultrasound and Ultrasound Localized Microscopy: A Case Report
Xue Lu
, Yuanqiang Xiao, Lili Wu, Jianning Chen
, An Liu
, Jie Ren, Yinglin Long
DOI: 10.12659/AJCR.952355
Am J Case Rep 2026; 27:e952355
446 591 0

21 Jun 2026 : Case report
When ST Elevation Is Not STEMI: Autonomic-Mediated Repolarization Abnormalities After Subarachnoid Hemorrhage
Anand Shah, Robin H. White
, Ziad Faramand, Sujoy Gulati
DOI: 10.12659/AJCR.952180
Am J Case Rep 2026; 27:e952180
569 701 0

21 Jun 2026 : Case report
When ST Elevation Is Not STEMI: Autonomic-Mediated Repolarization Abnormalities After Subarachnoid Hemorrhage
Anand Shah, Robin H. White
, Ziad Faramand, Sujoy Gulati
DOI: 10.12659/AJCR.952180
Am J Case Rep 2026; 27:e952180
569 701 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
567 767 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
567 767 0

16 Jun 2026 : Case report
Warm Autoimmune Hemolytic Anemia Presenting 21 Years After Liver Transplantation: A Case Report
Deepika Beereddy, Durga Naga Malleswara Rao Jonnalagadda
DOI: 10.12659/AJCR.953089
Am J Case Rep 2026; 27:e953089
604 883 0

16 Jun 2026 : Case report
Warm Autoimmune Hemolytic Anemia Presenting 21 Years After Liver Transplantation: A Case Report
Deepika Beereddy, Durga Naga Malleswara Rao Jonnalagadda
DOI: 10.12659/AJCR.953089
Am J Case Rep 2026; 27:e953089
604 883 0

14 Jun 2026 : Case report
Endobronchial Epstein-Barr Virus-Associated Smooth Muscle Tumor in Advanced HIV Infection: A Rare Case
Komson Wannasai, Pesol Hankittikanchana, Apiwish Kornkanjanarak, Pattraporn Tajarernmuang, Sarawut Kongkarnka
DOI: 10.12659/AJCR.952779
Am J Case Rep 2026; 27:e952779
536 694 0

14 Jun 2026 : Case report
Endobronchial Epstein-Barr Virus-Associated Smooth Muscle Tumor in Advanced HIV Infection: A Rare Case
Komson Wannasai, Pesol Hankittikanchana, Apiwish Kornkanjanarak, Pattraporn Tajarernmuang, Sarawut Kongkarnka
DOI: 10.12659/AJCR.952779
Am J Case Rep 2026; 27:e952779
536 694 0

12 Jun 2026 : Case report
Strangulated Small Bowel Obstruction Caused by a Migrated Ring-Shaped Intrauterine Device: Two Case Reports and a Literature Review
Yifan Lu, Jiaxu Zhu, Ziwen Wang, Xiangtian Shi, Xingchi Jiang, Dong Shang, Qingkai Zhang, Shuang Li
DOI: 10.12659/AJCR.952535
Am J Case Rep 2026; 27:e952535
523 688 0

12 Jun 2026 : Case report
Strangulated Small Bowel Obstruction Caused by a Migrated Ring-Shaped Intrauterine Device: Two Case Reports and a Literature Review
Yifan Lu, Jiaxu Zhu, Ziwen Wang, Xiangtian Shi, Xingchi Jiang, Dong Shang, Qingkai Zhang, Shuang Li
DOI: 10.12659/AJCR.952535
Am J Case Rep 2026; 27:e952535
523 688 0

08 Jun 2026 : Case report
An Unusual Presentation of Salmonella: Cellulitis, Gastroenteritis, and Bacteremia
Eric Pin-Shiuan Chen, Gabriel Rodriguez, Ajay Desai, Adlin Lawrence, Nelson Reyes, Salman A. Noor
DOI: 10.12659/AJCR.952571
Am J Case Rep 2026; 27:e952571
618 916 0

08 Jun 2026 : Case report
An Unusual Presentation of Salmonella: Cellulitis, Gastroenteritis, and Bacteremia
Eric Pin-Shiuan Chen, Gabriel Rodriguez, Ajay Desai, Adlin Lawrence, Nelson Reyes, Salman A. Noor
DOI: 10.12659/AJCR.952571
Am J Case Rep 2026; 27:e952571
618 916 0

06 Jun 2026 : Case report
Hyperglycemia Due to HNF1A-Mutation-Associated Maturity-Onset Diabetes of the Young (MODY) in a 6-Year-Old Kazakh Girl
Aiganym B. Toleuzhanova, Elena Zholdybayeva, Sholpan Eslamgalieva, Gulnara Svyatova, Ainash Akhmetollayeva
DOI: 10.12659/AJCR.951678
Am J Case Rep 2026; 27:e951678
523 761 0

06 Jun 2026 : Case report
Hyperglycemia Due to HNF1A-Mutation-Associated Maturity-Onset Diabetes of the Young (MODY) in a 6-Year-Old Kazakh Girl
Aiganym B. Toleuzhanova, Elena Zholdybayeva, Sholpan Eslamgalieva, Gulnara Svyatova, Ainash Akhmetollayeva
DOI: 10.12659/AJCR.951678
Am J Case Rep 2026; 27:e951678
523 761 0
In Press
Case report
Am J Case Rep In Press; DOI: 10.12659/AJCR.952909
Case report
Am J Case Rep In Press; DOI: 10.12659/AJCR.950868
Case report
Am J Case Rep In Press; DOI: 10.12659/AJCR.952931
Case report
Am J Case Rep In Press; DOI: 10.12659/AJCR.952577
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