People who have experienced chronic abdominal pain, diarrhea, fever, weight loss, and anemia may be examined for signs of Crohn's disease. In addition to a complete medical history and physical examination, diagnostic procedures for Crohn's disease may include: Blood tests.
The differential diagnosis of lymphocytopenia includes: 1  Infections, acute General acute infections. 2  Immunodeficiency AIDS. 3  Immune Systemic lupus erythematosis. 4  Endocrine ACTH. 5  Lymphatic circulation defects Intestinal lymphangectasia. 6  Medications Corticosteroids. 7  Miscellaneous Renal failure.
Diagnosis of a pheochromocytoma. A diagnosis of a pheochromocytoma is made if the laboratory studies confirm elevated levels of catecholamines in the urine or blood. Once the diagnosis is confirmed on laboratory studies then further are aimed at localizing (finding) the tumor.The following the studies are available to find the tumor: 1  CT scan. 2  MRI scan. diagnosis of a pheochromocytoma is made if the laboratory studies confirm elevated levels of catecholamines in the urine or blood. Once the diagnosis is confirmed on laboratory studies then further are aimed at localizing (finding) the tumor. The following the studies are available to find the tumor: