Pneumococcal endocarditis is an uncommon disease. Here, we describe a case of endocarditis caused by Streptococcus pneumoniae in a young man following a nose trauma. In traumas that involve the respiratory system and the mucous membrane, bacterial complications such as colonization and bacteremia and end-organ involvement should be considered by physicians.

Mucous membrane pemphigoid (MMP) is a rare variant of the skin disease pemphigoid, which predominantly involves the mucous membranes. This rare autoimmune disease that infrequently affects the respiratory tract is characterized by subepithelial blister formation that may result in scarring. Immunopathologic examination of mucous membranes reveals the deposition of immunoglobulins and complement...

Of the eight epithelial cell types of the airway surface epithelium three are secretory, the mucous, serous and Clara cells: the first two are also found in the submucosal glands. Organ culture results indicate that the pattern of control of the surface cells is different from that of the glands. Our recent studies show that in the surface epithelium Clara and serous cells can quickly convert t...

1. The principal tissue changes in the respiratory tract of chickens caused by a vitamin A deficiency in the food are, first, an atrophy and degeneration of the lining mucous membrane epithelium as well as of the epithelium of the mucous membrane glands. This process is followed or accompanied by a replacement or substitution of the degenerating original epithelium of these parts by a squamous ...

nonencapsulated, nontypeable hemophilus influenzae (nthi) remains an important cause of acute otitis and respiratory diseases in children and adults. nthi bacteria are one of the major causes of respiratory tract infections, including acute otitis media, cystic fibrosis, and community-acquired pneumonia among children, especially in developing countries. the bacteria can also cause chronic dise...