Conditions Treated by Dr. John Zwiacher, MD

• Abdominal Pain
• Anal and Rectal Cancer
• Anal Fissure
• Anorectal Abscess
• Appendicitis
• Atelectasis
• Breast Cancer
• Breast Lump
• Carcinoma in Situ
• Cholecystitis and Gallstones
• Collapsed Lung (Pneumothorax)
• Colorectal Cancer
• Crohn's Disease (Regional Enteritis)
• Diaphragmatic and-or Hiatal Hernia
• Empyema
• Esophageal Cancer
• Esophageal Fistula
• Esophageal Varices
• Hemorrhoids
• Hyperparathyroidism
• Incisional Hernia
• Inguinal Hernia
• Intestinal Abscess
• Intestinal Obstruction
• Liver Cancer
• Lung Cancer
• Pancreatic Cancer
• Parathyroid (Gland) Disease
• Parathyroid (Gland) Tumor: Other than Malignant
• Peripheral Arterial Aneurysm and Dissection