| BRBNS | blue rubber bleb nevus syndrome |
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| BS | Bachelor of Science; Bachelor of Surgery; Bacillus subtilis; Bartter syndrome; base strap; bedside; ... |
| BSA | benzenesulfonic acid; Biofeedback Society of America; bismuth-sulfite agar; bis-trimethylsilyl-aceta... |
| BTB | breakthrough bleeding; bromthymol blue |
| BTBL | bromothymol blue lactose |
| rhodanile blue | A dye mixture, considered by some to be a salt of rhodamine B and Nile blue, used to stain keratinised epithelium (red) and fibroblasts (blue), as well as spermatozoa and normal and pathologic acidophilic, basophilic, and certain neutrophilic elements of cells and tissues; used as a substitute for haematoxylin and eosin. (05 Mar 2000) |
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| Perls' Prussian blue stain | <technique> A stain for ferric iron as in haemosiderins, using potassium ferrocyanide in acetic acid or dilute hydrochloric acid followed by a red counterstain such as safranin O or neutral red; various haemosiderins and most mineral irons give a blue-green reaction, while nuclei stain red. (05 Mar 2000) |
| methyl blue | A sulfonated triphenylrosaniline dye used as a stain for cytoplasm, collagen, and Negri bodies, and as an antiseptic. (05 Mar 2000) |
| Coomassie blue | Stain commonly used non-specifically for proteins on gels. Recently renamed Kenacid Blue. (18 Nov 1997) |
| Coomassie brilliant blue R-250 | A general protein stain used in electrophoresis because of its unusual sensitivity. Origin: originally, a proprietary name of Imperial Chemical; Coomassie (Kumasi), Ghana (05 Mar 2000) |
| cresyl blue | C17H20N3OCl; Aminodimethylaminoethyldiphenazonium chloride;a basic oxazin dye used for staining the reticulum in young erythrocytes (reticulocytes); also used in vital staining and as a selective stain for gastric surface epithelial mucin and other acid mucopolysaccharides. (05 Mar 2000) |
| Prussian blue | Fe4(Fe(CN)6)3; ferric ferrocyanide;a dye used to colour injection masses for blood vessels and lymphatics, and in staining of siderocytes. Synonym: Prussian blue. (05 Mar 2000) |
| prussian blue reaction | The reaction of potassium ferrocyanide with ferric iron to yield a dark blue precipitate at the sites of the ferric iron. Used to determine ferric iron in tissues, particularly in the diagnosis of disorders of iron metabolism. (12 Dec 1998) |
| Prussian blue stain | <technique> A stain employing acid potassium ferrocyanide to demonstrate iron, as in siderocytes. (05 Mar 2000) |
| sea-blue histiocyte | A histiocyte containing cytoplasmic granules that stain bright blue with haematologic stains such as Wright-Giemsa; found in bone marrow and in the spleen, associated with hepatosplenomegaly and thrombocytopenic purpura and in other blood diseases. (05 Mar 2000) |
| sea-blue histiocyte disease | Splenomegaly and mild thrombocytopenia, with histiocytes in the bone marrow which contain cytoplasmic granules that stain bright blue; sometimes familial; perhaps a lipidosis; autosomal recessive inheritance. (05 Mar 2000) |
| sea-blue histiocyte syndrome | <syndrome> Rare disorder consisting of splenomegaly, mild purpura secondary to thrombocytopenia, and occasionally, hepatic cirrhosis associated with the appearance of numerous histiocytes in the spleen and bone marrow which stain a sea-blue colour. It is sometimes considered a variant of niemann-pick disease. (12 Dec 1998) |
| pyrrol blue | C4OH3ON3O6Na;an acid triarylmethane dye employed as a vital dye and as an elastin stain. Synonym: Isamine blue. (05 Mar 2000) |
| sky blue | A pigment mixture of cobaltous stannate and calcium sulfate; used biologically as an injection mass. (05 Mar 2000) |
| nevus, blue | A benign nevus, usually solitary, representing a localised proliferation of dermal melanocytes, which is manifested by a dark blue to black, moderately firm, rounded, sharply defined nodular tumour composed of spindle-shaped melanocytes with slender cytoplasmic processes, occurring often in association with melanin-laden macrophages in a sclerotic dermis. It is also called dermal melanocytoma and jadassohn-tieche nevus. (12 Dec 1998) |