Apr 17, 2024 · Breast - Pseudoangiomatous stromal hyperplasia is a benign stromal myofibroblastic proliferation forming clefts, simulating a vascular lesion

6 days ago · Pseudoangiomatous stromal hyperplasia (PASH): Empty, anastomosing spaces within collagen Usually not mass forming Rb1 positive by immunohistochemistry and lacks del 13q14 …

Breast nonmalignant and malignant

May 9, 2022 · Hamartoma is a well circumscribed, often encapsulated mass composed of normal but disorganized components of breast tissue

Oct 18, 2024 · Breast nonmalignant - Fibroadenoma is a benign biphasic tumor composed of a proliferation of both glandular epithelial and stromal components of the terminal duct lobular unit

Jul 15, 2022 · PAS (Periodic acid-Schiff) is a special stain, not an immunostain, that stains basement membrane (normal and in tumors), glycogen, some mucins and mucopolysaccharides

Nov 23, 2021 · Hidradenitis suppurativa is a chronic inflammatory disorder of pilosebaceous apocrine unit characterized by nodules, abscesses, fistulae and sinus tracts with scarring that most commonly …

Mar 28, 2022 · Fibromatosis-like metaplastic carcinoma is a variant of metaplastic carcinoma with low grade, bland, spindle cells histologically resembling fibromatosis

Nov 23, 2021 · Columnar cell lesions of breast are enlarged terminal duct lobular units (TDLUs) with irregularly dilated acini lined by columnar epithelial cells

Jan 16, 2024 · Atypical lobular hyperplasia (ALH) is a clonal proliferation of discohesive epithelial cells arising in terminal duct lobular units