There are multiple definitions:
pseudoangiomatous stromal hyperplasia(English)
- a spindle-cell proliferation that pathologically originates from collagen-producing myofibroblasts
- ERG, IHC
- Cell biology, Pathology, Histochemistry
- https://doi.org…55/2021/7697987
pyoderma gangrenosum, acne, and suppurative hidradenitis(English)