Thymoma

Thymomas are tumors that originate from the thymus, a specialized organ of the immune system in the chest cavity.

Symptoms

 * Eye bulging (exophthalmus)
 * Third eye protusion
 * Swelling of the head, neck, or forelimbs
 * Abnormally rapid breathing (tachypnea)
 * Difficult or labored breathing (dyspnea)
 * Widespread scaling of the skin (exfoliative dermatitis)
 * Sebaceous adentitis