The patient requested hospice care and was discharged in stable condition to a rehab center for pain management.

On 6-28-03 the patient was admitted for fever, acute mental status changes with hallucinations and shortness of breath. ABG's showed: pH of 7.43, CO2 of 36, O2 of 64 and O2 saturations above 90 on 4 liters of oxygen. The patient became increasingly disoriented and his shortness of breath increased, he died within 24 hours of admission.

An autopsy was performed.

	Lung with puckered pleura overlying the parenchymal mass
	Lung with puckered pleura close up
	Lung with diffuse parenchymal infiltration and enlarged lymph nodes
	Lung with diffuse parenchymal infiltration and enlarged lymph nodes
	Lung with parenchymal mass
	Hamartoma of Right Lower Lobe
	Microscopic images of the lung tumor
	Microscopic images of the lung tumor with intravascular metastases
	Microscopic images of the lung tumor with intravascular metastases
	Microscopic images of the lung tumor higher power
	Section of the adrenal metastasis
	Section of the liver metastasis
	Section of the liver metastasis higher power
	Incidental finding in the lung, hamartoma edge of lesion
	Incidental finding in the lung, hamartoma edge of lesion
	Hamartoma central region

1. What is your differential diagnosis of this patient's mental status changes with hallucinations?

2. What is a hamartoma?