Author

Takuya Otsuka

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Case report Open access Oct 2026

Three Cases of Primary Hepatic Neuroendocrine Tumor Treated with Surgical Resection: A Case Series and Literature Review

ABSTRACT INTRODUCTION Primary hepatic neuroendocrine tumors (PHNETs) are extremely rare, accounting for approximately 0.3% of all neuroendocrine tumors (NETs). Because the liver is the most common metastatic site of NETs, distinguishing PHNET from metastatic disease is often challenging. Optimal treatment strategies an...

Takanari Kobayashi, S. Fujiyoshi, S. Shichi et al. · Surgery Case Reports · 0 citations

Review Open access Aug 2026

Systemic AA Amyloidosis Following Immune Checkpoint Inhibitor Therapy for Lung Carcinosarcoma: An Autopsy Case and Review of the Literature.

AA amyloidosis is a rare but serious complication of chronic inflammation. We report an autopsy case of a 68-year-old man without a documented history of inflammatory disease who developed lung carcinosarcoma and achieved a durable complete response after sequential immune checkpoint inhibitor (ICI) therapy. Despite tu...

Shinobu Onishi, Sari Iwasaki, Shimpei Nakagawa et al. · Internal medicine · 1 citation