{Reference Type}: Case Reports
{Title}: An Unusual Case of an ALK-Negative Epithelioid Fibrous Histiocytoma in the External Auditory Canal.
{Author}: Leff M;Quimby A;Morgan E;Brant JA;
{Journal}: Laryngoscope
{Volume}: 134
{Issue}: 7
{Year}: 2024 Jul 24
{Factor}: 2.97
{DOI}: 10.1002/lary.31302
{Abstract}: This article represents the first reported case in the external auditory canal of epithelioid fibrous histiocytoma (EFH), a rare benign cutaneous epithelioid neoplasm. Immunostaining revealed uncommon negative staining for anaplastic lymphoma kinase (ALK) expression. This case and literature review outline the diagnostic strategy for this highly unusual neoplasm. Laryngoscope, 134:3371-3373, 2024.