A 46-Year-Old Man Presenting With Chest Pain Due to Apical Hypertrophic Cardiomyopathy (Yamaguchi Syndrome) Diagnosed by Multimodal Cardiac Imaging

Mauro de Deus Passos; Daniel Lopes Marques de Araújo; Lucas de Ávila Mariano; Dilson Palhares Ferreira; Luciano Moreira Alves; Simone Nascimento dos Santos

doi:10.12659/AJCR.953259

25 July 2026 : Case report Brazil

A 46-Year-Old Man Presenting With Chest Pain Due to Apical Hypertrophic Cardiomyopathy (Yamaguchi Syndrome) Diagnosed by Multimodal Cardiac Imaging

Challenging differential diagnosis, Management of emergency care, Rare disease

Mauro de Deus Passos^{ABDEF 1,2*}, Daniel Lopes Marques de Araújo^{ABDEF 3}, Lucas de Ávila Mariano^{ABDEF 3}, Dilson Palhares Ferreira^{ABDEF 1,2}, Luciano Moreira Alves^{ABDEF 4,5}, Simone Nascimento dos Santos^{ABDEF 6}

DOI: 10.12659/AJCR.953259

Am J Case Rep 2026; 27:e953259

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Figure 4 Multiplanar cardiac magnetic resonance (CMR) imaging confirming apical hypertrophyThe CMR images include 4-chamber long-axis views in diastole (A) and systole (B), and coronal views in diastole (C) and systole (D). The arrows highlight the increased left ventricular (LV) wall thickness with marked apical predominance and complete systolic obliteration of the LV apex (B, D), confirming the diagnosis of Yamaguchi syndrome. LV, left ventricular; CMR, cardiac magnetic resonance.

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A 46-Year-Old Man Presenting With Chest Pain Due to Apical Hypertrophic Cardiomyopathy (Yamaguchi Syndrome) Diagnosed by Multimodal Cardiac Imaging

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