Final answer:
The patient most likely suffers from Marfan syndrome, a genetic disorder that affects the connective tissues in the body.
Step-by-step explanation:
The patient in the given scenario most likely suffers from Marfan syndrome.
Marfan syndrome is a genetic disorder that affects the connective tissues in the body. It is caused by a mutation in the FBN1 gene, which leads to the production of abnormal fibrillin-1 protein. The characteristic features of Marfan syndrome include tall stature, disproportionately long limbs and fingers, and involvement of various body systems such as the skeletal, cardiovascular, and ocular systems.
In this case, the patient's tall and slender body type, long arms and legs, and long and thin fingers are consistent with the physical features seen in Marfan syndrome. Additionally, the presence of oral and perioral nodules, along with a history of previous nodules and total thyroidectomy, further supports the diagnosis of Marfan syndrome.