Letter to Editor Regarding “Nuclear Insulinoma-Associated Protein 1 Expression as a Marker of Neuroendocrine Differentiation in Neoplasms of the Breast” by Seijnhaeve et al

Seijnhaeve E Galant C Van Bockstal MR . Nuclear insulinoma-associated protein 1 expression as a marker of neuroendocrine differentiation in neoplasms of the breast. Int J Surg Pathol. 2021;29:496–502.

Kawasaki T Kaira K . Insulinoma-associated protein 1 (INSM1) expression in breast carcinomas with neuroendocrine morphologies: application and future prospective. Virchows Arch. 2021;479:191–194.

Razvi H Tsang JY Poon IK , et al. INSM1 Is a novel prognostic neuroendocrine marker for luminal B breast cancer. Pathology. 2021;53:170–178.

Metovic J Castellano I Marinelli E , et al. INSM1 expression in breast neoplasms with neuroedocrine features. Endocr Pathol. 2021;32:452–460

Kawasaki T Kaira K Nakamura Y , et al. Re: INSM1 is a novel prognostic neuroendocrine marker for luminal B breast cancer. Pathology. 2021;53:292–293.

Allison KH Hammond MEH Dowsett M , et al. Estrogen and progesterone receptor testing in breast cancer: American society of clinical oncology/college of American pathologists guideline update. Arch Pathol Lab Med. 2020;144:545–563.