O negative is a blood group that neither has the A or B markers nor the Rh factor. In its plasma, it donât has anti-A antibodies and anti-B antibodies. People with O negative blood group can donate their blood to all types of blood groups either A, B, AB, O, their -ve and +ve.
Larynx (Throat) Polyps. Laryngeal polyps (also called throat or vocal cord polyps) are growths on the larynx (voice box). In most cases it is the result of injury to the vocal cords (folds of mucous tissue in the voice box) through overuse of the voice.In the vast majority of cases, they are not cancerous.he most common sites for growth are the nasal passage of the nose, the vocal cords (larynx) and colon (colorectal polyp). The two types unique to women are uterine polyps and cervical polyps. The cause of cervical polyps is not completely understood.
Abstract. Benign and malignant lesions of the larynx and hypopharynx present an interesting and diverse spectrum of diagnostic entities, which may be infrequently encountered in routine surgical pathology practice.ross. The macroscopic appearance of a vocal cord nodule is a smooth white surface, whereas the polyp is a sessile to pedunculated erythematous nodule. These lesions may be solitary (polyps) or bilateral and on opposing cord surfaces (nodules) of the vocal cord or on the cord adjacent to the ventricle (polyps).