Single-Site ALK-Positive Histiocytosis With TFG-ALK Fusion: Expanding the Clinical Spectrum of This Rare Entity

15 August 2026 : Case report USA

Rare disease

Mona Dasgupta^{BCDEF 1*}, David Horvath^{BCDE 2}, Benjamin Bevill^{A 1}, Ashley Scheiderer^{BCDE 2}, Sean Jordan^{AEF 3}

DOI: 10.12659/AJCR.952807

Am J Case Rep 2026; 27:e952807

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Figure 4 Immunohistochemical staining at 400× magnification demonstrating patchy cytoplasmic and nuclear S100 protein expression.

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