Constipation and tremor

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Eiman Ghaffarpasand, M.D. [2]

Diseases	History and Symptoms								Physical Examination				Laboratory Findings			Other Findings	Diagnostic study of choice
													Electrolyts [Ca, K, Mg]	Biochemical tests
	GI symptoms				Extra GI symptoms				Abnormal gait	Anal protruding mass	DRE	Deep tendon reflex		FBS	TSH
	Dysphagia	Abdominal pain	Anal pain	Rectal bleeding	Weight loss	Polyphagia, Polyuria, Polydipsia	Dry skin	Tremor
Parkinson's disease	+/-	-	-	-	-	-	-	++	+	-	Normal	↑↑	Normal	Normal	Normal	Muscle stiffness Drooling	Brain MRI
Multiple sclerosis	+	-	-	-	-	-	-	+	+	-	Normal	↓↑	Normal	Normal	Normal	Blurred vision Erectile dysfunction	Brain MRI CSF biochemical profile
Cerebral palsy	+	-	-	-	+	-	-	+	+	-	Normal	↑	Normal	Normal	Normal	Spastic extremities paralysis Paresthesia	Brain MRI Physical examination
Lead poisoning	-	+++	-	-	-	-	-	+	-	-	Normal	Normal	Normal	Normal	Normal	Sideroblastic anemia Dysesthesia Amnesia	Plasma lead level
Pheochromocytoma	-	-	-	-	-	-	-	+	-	-	Normal	Normal	Normal	Normal	Normal	Hypertension crisis Severe headache Blurred vision	Urine vanillyl mandelic acid (VMA) level
Hypomagnesemia	-	+	-	-	-	-	-	+	-	-	Normal	↓	↓↓ Mg	Normal	Normal	Nystagmus Seizure	Plasma Mg level