====== Hamartoma ======
A hamartoma is a benign, focal malformation that resembles a neoplasm in the tissue of its origin. This is not a malignant tumor, and it grows at the same rate as the surrounding tissues. It is composed of tissue elements normally found at that site, but which are growing in a disorganized mass. They occur in many different parts of the body and are most often asymptomatic and undetected unless seen on an image taken for another reason (incidentaloma).

see [[Hypothalamic hamartoma]].

see [[Spinal intramedullary hamartoma]].

see [[Ecchordosis physaliphora]]

Choristomas, forms of heterotopia, are closely related benign tumors, found in abnormal locations.

The two can be differentiated as follows: a hamartoma is an excess of normal tissue in a normal situation (e.g. a birthmark on the skin), while a choristoma is an excess of tissue in an abnormal situation (e.g. pancreatic tissue in the duodenum).
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[[Medial temporal lobe lesions]], may be responsible for [[seizure]]s, especially “[[uncal fits]]” ([[temporal lobe seizures]]).

1. [[hamartoma]]

2. [[mesial temporal sclerosis]] : should see [[atrophy]] of the [[parenchyma]] in this area with dilatation
of the [[temporal horn]] of the [[lateral ventricle]]

3. [[glioma]]: may be low grade. Look for [[mass effect]] and possibly [[enhancement]]