storiform pattern storiform pattern a woven or storiform pattern is a histopathologic architectural pattern. the name "storiform" originates from latin storea (woven), as storiform tissue tends to resemble woven fabric on microscopy. woven or storiform pattern: elongated cells or nuclei wherein small bundles are aligned in an otherwise haphazard pattern. woven fabric is shown for comparison. storiform fibrosis is a histologic sign of igg4-related disease, accompanied by a dense lymphoplasmocytic infiltrate, often a partially eosinophilic infiltrate and obliterative phlebitis.