Conditions Treated by Dr. Michael K. O'Brien, MD

• Abdominal Pain
• Anal Fissure
• Anorectal Abscess
• Appendicitis
• Atelectasis
• Breast Cancer
• Breast Lump
• Cholecystitis and Gallstones
• Collapsed Lung (Pneumothorax)
• Colorectal Cancer
• Crohn's Disease (Regional Enteritis)
• Diaphragmatic and-or Hiatal Hernia
• Gallbladder and Biliary Tract Cancer
• Hemorrhoids
• Hidradenitis
• Hyperparathyroidism
• Incisional Hernia
• Inguinal Hernia
• Intestinal Obstruction
• Lipomas
• Liver Cancer
• Lung Cancer
• Neuroendocrine Tumors
• Peripheral Arterial Aneurysm and Dissection
• Peripheral Vascular Disease (PAD, PVD)
• Pleural Effusion
• Secondary Malignancies
• Stomach and Small Intestine Cancer
• Ulcerative Colitis
• Umbilical Hernia