A new 3-tier pattern-based system to classify endocervical adenocarcinoma was recently presented.
Pattern A tumors were characterized by well-demarcated glands frequently forming clusters or groups with relative lobular architecture.
Pattern B tumors demonstrated localized destructive invasion defined as desmoplastic stroma surrounding glands with irregular and/or ill-defined borders or incomplete glands and associated tumor cells (individual or small clusters) (...)
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SDHA-associated renal cell carcinoma
Succinate dehydrogenase (SDH)-deficient renal cell carcinoma (RCC) is an emerging provisional entity included in the 2013 International Society of Urological Pathology Vancouver Classification.
Most genomic alterations in patients with SDH-deficient RCCs involve the SDHB subunit, and the associated renal tumors have loss of immunohistochemical SDHB expression and distinctive morphologic features.
Renal tumors less commonly possess genomic alterations (...)
renal simple cysts
renal atypical cysts
Components or structures are entities assembling to form another biological components.
gastric nodular lymphoid hyperplasia
duodenal nodular lymphoid hyperplasia
intestinal nodular lymphoid hyperplasia
colonic nodular lymphoid hyperplasia
nodular lymphoid hyperplasia
diffuse nodular lymphoid hyperplasia of the colon
immunodeficiency syndromes Nodular lymphoid hyperplasia (NLH) of the gastrointestinal tract is a rare disorder associated with immunodeficiency syndromes. common variable immunodeficiency (CVID) CIVD is the second most prevalent primary immunodeficiency disorder after selective immunoglobulin A deficiency.
lymphoid nodule (lymphatic nodule)
digestive nodular lymphoid (...)
digestive lymphoid nodule gastric lymphoid nodule intestinal lymphoid nodule colonic lymphoid nodule
lymphoid nodule in the bladder
lymphoid nodule in the gall bladder
bone marrow lymphoid nodule
crystals in sarcoidosis
calcium oxalate large crystals in giant cells birefringent component of Schaumann body small ovoids in macrophages
Calcium oxalate in sarcoid granulomas. With particular reference to the small ovoid body and a note on the finding of dolomite. Reid JD, Andersen ME. Am J Clin Pathol. 1988 Nov;90(5):545-58. PMID: (...)
mammary peri-prothetic capsula
Formation of a fibrous envelope around the implant, a so-called capsule with resultant contracture of the prosthesis, is an occasional complication of augmentation mammoplasty.
The capsulectomy specimen contains mature scar tissue with mononuclear cells, histiocytes, and foreign body giant cells.
Studies showed a striking form of papillary villous synovial-like hyperplasia similar to detritic synovitis, a form of proliferative synovitis caused by orthopedic (...)
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