Oral cysts with gastric or intestinal epithelium (oral alimentary tract cyst)
6. Cystic hygroma
7. Nasopharyngeal cyst
8. Thymic cyst
9. Cysts of the salivary glands: mucous extravasation cyst; mucous retention cyst; ranula; polycystic (dysgenetic) disease of the parotid
10. Parasitic cysts: hydatid cyst; Cysticercus cellulosae; trichinosis
Buccal bifurcation cyst
Calcifying odontogenic cyst
Dentigerous cyst (associated with the crowns of non-erupted teeth)
Glandular odontogenic cyst
Keratocyst (in the jaws, these can appear solitary or associated with the Gorlin-Goltz or Nevoid basal cell carcinoma syndrome. Paradental cyst
Periapical cyst (The periapical cyst, otherwise known as radicular cyst, is the most common odontogenic cyst.) Radicular cyst (associated with the roots of non-vital teeth, also known as Periapical cyst)
Residual cyst

Cystic neoplasm
Most cysts in the body are benign (dysfunctional) tumors, the result of plugged ducts or other natural body outlets for secretions. However, sometimes these masses are considered neoplasm:

Keratocyst
Calcifying odontogenic cyst
According to the current (2005) classification of the World Health Organization, both (parakeratizied) odontogenic keratocyst and calcifying odontogenic cyst have neoplastic characteristics, thus renamed as Keratocystic odontogenic tumor and Calcifying odontogenic tumor, respectively. Cystic ameloblastoma
Long standing dentigerous cyst, odontogenic keratocyst, and residual cyst may have neoplastic potential converting into the locally aggressive ameloblastoma, or the malignant squamous cell carcinoma and mucoepidermoid carcinoma. Diagnosis
On histopathology, cholesterol clefts indicate mainly a periapical (radicular) cyst or an inflamed dentigerous cyst. Treatment
Treatment ranges from simple enucleation of the cyst to curettage to resection. For example, small radicular cyst may resolved after successful endodontic ("root-canal") treatment. Because of high recurrence potential and aggressive behaviour, curettage is recommended for keratocyst.
The defense mechanisms of the body present as cold and flu-like symptoms that occur in individuals who experience either acute or chronic reactions.The mold spores are inhaled and provoke the creation of IgE antibodies that circulate in the bloodstream, these types of immune response are most often initiated by exposure to thermophilic actinomycetes (most commonly Saccharopolyspora rectivirgula), which generate IgG-type antibodies. Following a subsequent exposure, IgG antibodies combined with the inhaled allergen to form immune complexes in the walls of the alveoli in the lungs. This causes fluid, protein, and cells to accumulate in the alveolar wall which slows blood-gas interchange and compromises the function of the lung. After multiple exposures, it takes less and less of the antigens to set off the reaction in the lung. Prevention
Farmers lung disease (FLD) is permanent and cannot be reversed, therefore in order to prevent the onset of further stages, farmers should inform their doctor of their occupation and if they have mold in their work environment. Prevention of this respiratory illness can be facilitated through the ventilation of work areas, drying of materials, and the use of a mask when working in confined areas with moldy hay or crops. Diagnosis
Diagnoses of Farmers lung is difficult due to its similarity to cold and flu-like symptoms. Doctors diagnose patients with Farmers lung under the following conditions:

A clinical history of symptoms such as cough, fever, and labored breathing when exposed to mold in work environment. The presence of diffuse lung disease in chronic cases.