Aggression to people and animals
Often bullies, threatens or intimidates others
Often initiates physical fights
Has used a weapon that can cause serious physical harm to others (e.g., a bat, brick, broken bottle, knife, gun)
Has been physically cruel to people
Has been physically cruel to animals
Has stolen while confronting a victim (e.g., mugging, purse snatching, extortion, armed robbery)
Has forced someone into sexual activity (rape or molestation)
Feels no remorse or empathy towards the harm, fear, or pain they may have inflicted on others

Destruction of property
Has deliberately engaged in fire setting with the intention of causing serious damage
Has deliberately destroyed others property (other than by fire setting)

Deceitfulness or theft
Has broken into someone elses house, building, or car
Often lies to obtain goods or favors or to avoid obligations (i.e., "cons" others)
Has stolen items of nontrivial value without confronting a victim (e.g., shoplifting, but without breaking and entering; forgery)

Serious violations of rules
Often stays out at night despite parental prohibitions, beginning before age 13 years
Has run away from home overnight at least twice while living in parental or parental surrogate home (or once without returning for a lengthy period)
Is often truant from school, beginning before age 13 yearsThe lack of empathy these individuals have and the aggression that accompanies this carelessness for the consequences is dangerous- not only for the individual but for those around them. Developmental course
Currently, two possible developmental courses are thought to lead to conduct disorder. The first is known as the "childhood-onset type" and occurs when conduct disorder symptoms are present before the age of 10 years.
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.