Salivary gland type malignant neoplasm arising from bronchial seromucinous glands. Composed of epithelial and myoepithelial cells in cribriform, tubular and solid growth patterns....

Achalasia is a rare disorder of the esophagus, the tube that carries food from the throat to the stomach. It is characterized by enlargement of the esophagus, impaired ability to push food down toward the stomach (peristalsis), and failure of the ...

Eosinophilic gastroenteritis is a rare digestive disease characterized by the triad of eosinophilic infiltration of segments of the gastrointestinal tract, abnormalities of gastrointestinal function (varying from dyspepsia and obstruction to diarr...

Pierre Robin sequence is characterized by an unusually small lower jaw (micrognathia) and downward displacement of the tongue (glossoptosis). Some infants also have an abnormal opening in the roof of the mouth (cleft palate); both the soft and har...

Kenny-Caffey syndrome type 2 (KCS2) is an extremely rare hereditary skeletal disorder characterized by thickening of the long bones, thin marrow cavities in the bones (medullary stenosis), and abnormalities affecting the head and eyes. Most cases ...

Plummer-Vinson syndrome, also known as Paterson-Kelly syndrome, is a rare condition characterized by the triad of iron deficiency anemia, dysphagia (difficulty swallowing), and esophageal webs (thin membranes that form across the esophagus). It is...

Rubinstein-Taybi syndrome is a rare genetic multisystem disorder that affects many organ systems of the body. The group of findings (constellation) associated with this syndrome include growth retardation and delayed bone age; mental retardation; ...

A Schatzki ring is a narrowing of the lower esophagus that can cause dysphagia. Dysphagia means difficulty in swallowing. Dysphagia itself is rather common and occurs in about 3 percent of the population. The Schatzki ring is comprised of ...