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The supporting tissues of an organ, including connective and nervous tissues and blood vessels.



(1) The supporting framework of an animal organ. The stroma consists of unstructured connective tissue containing specific elements of an organ, cells capable of reproduction, and fibrous structures that provide support. Blood vessels and lymphatics pass through it. Stromal elements perform a protective role by participating in phagocytosis. Red and white blood cells develop from the stromal cells of hematopoietic organs.

(2) The protein base of erythrocytes.

(3) In many ascomycetes and Fungi Imperfecti, the compact mass of hyphae upon which spore-bearing bodies (conidio-phores) are arranged.

(4) In algae and higher plants, the colorless protein base of plastids in which a strictly ordered system of membranes serving as pigment carriers is embedded.

References in periodicals archive ?
These tumors have been reported under various names such as leiomyomatous renal hamartoma, congenital mesoblastic nephroma, cystic hamartoma of the renal pelvis, solitary multilocular cysts of the kidney, multilocular renal cyst with mullerian-like stroma, and adult metanephric stromal tumor (4-12).
Epithelial cells were PAP-positive, but stromal cells were PAP-negative (magnification x40).
Therefore, we advocate capsule endoscopy (CE) as a screening method to evaluate for gastrointestinal stromal tumors in neurofibromatosis.
Adjuvant imatinib mesylate after resection of localised, primary gastrointestinal stromal tumour: a randomised, double-blind, placebo-controlled trial.
Gastrointestinal stromal tumors (GIST) belong to a group of cancers known as soft tissue sarcomas, and, as the most common sarcomas, they can be found most often in the stomach and small intestine.
Gastrointestinal stromal tumors are rare neoplasms that arise from mesenchymal cells of the gastrointestinal (GI) tract.
Initially approved in 2001, Glivec, a single transduction inhibitor, is now available in over 80 countries worldwide and is indicated for the treatments of chronic myelocytic leukemia and gastrointestinal stromal tumor.
4) Do tumor stromal cells constitute a unique tumor stem cell niche?
Plus, younger women tend to have rarer forms of ovarian cancer, called germ cell or stromal ovarian cancer, which are fairly responsive to chemotherapy and may not require a hysterectomy, says Thomas J.
Stromal hemosiderin deposition and inflammatory cells, particularly plasma cells, are often present.
These cells, called stromal cells, are immature fat cells.
He diagnosed the specimen as a "florid endometrial stromal proliferation consistent with a low grade endometrial stromal sarcoma," a rare and potentially deadly malignancy.