Diagnosis

C

• Caffeine use
• Calcium channel blocker overdose
• Calluses and corns
• Campylobacter infection (intestinal bacterial infection)
• Cancer (tumor)
• Candida albicans (yeast infection)
• Carbon monoxide poisoning
• Carbuncle (skin infection)
• Carcinoid syndrome
• Cardiac arrest
• Cardiac arrhythmia (abnormal heart rate)
• Cardiomyopathy (weakened heart)
• Carotid artery dissection (tear)
• Carotid artery stenosis (neck artery narrowing)
• Carotid cavernous fistula (abnormal communication)
• Carpal tunnel syndrome (wrist nerve compression)
• Cat bite
• Cat scratch fever
• Cataracts
• Cauda equina syndrome (spinal cord damage)
• Cauliflower ear (wrestlers ear)
• Cavernous sinus aneurysm (dilation)
• Cavernous sinus thrombosis (blood clot)
• Cavernous sinus tumor (cancer)
• Cavity (tooth caries)
• Celiac disease (gluten intestinal disease)
• Cellulitis (skin infection)
• Centipede sting
• Central cord syndrome (traumatic spine injury)
• Cerebellar hemorrhage (posterior brain bleeding)
• Cerebellar syndrome
• Cerebral aneurysm (brain artery dilation)
• Cerebral contusion (bruise of brain)
• Cerebral palsy
• Cerebral vascular accident (stroke)
• Cerebrospinal fluid otorrhea (ear leakage of CSF)
• Cerebrospinal fluid rhinorrhea (brain fluid from the nose)
• Cerumen (ear wax) impaction
• Cervical cancer (tumor)
• Cervical lymphadenopathy (enlarged neck lymph nodes)
• Cervical myelopathy (spinal cord compression)
• Cervical radiculopathy (pinched nerve in neck)
• Cervical spine fracture (broken neck bone)
• Cervical spine stenosis (neck spinal stenosis)
• Cervical spondylosis (neck arthritis)
• Cervicitis (inflammation of the cervix)
• Chagas disease (trypanosomiasis)
• Chalazion
• Chemical burn
• Chemical irritants
• Chemotherapy
• Chest trauma (injury)
• Chicken pox (varicella)
• Chikungunya (viral infection)
• Chilblains (pernio)
• Child abuse
• Chlamydia trachomatis infection (STD)
• Chlorine bleach overdose
• Cholangitis (infected bile ducts)
• Cholecystitis (infected gallbladder)
• Choledocholithiasis (stone in bile duct)
• Cholelithiasis (gallstones)
• Cholera (intestinal bacterial infection)
• Cholesteatoma (middle ear mass)
• Chronic fatigue syndrome (CFS)
• Chronic liver disease
• Chronic lymphocytic leukemia (CLL)
• Chronic myelogenous leukemia (CML)
• Chronic obstructive pulmonary disease (COPD)
• Chronic pain
• Chronic venous insufficiency (CVI)
• Cirrhosis (liver failure and scarring)
• Clavicle fracture (broken collar bone)
• Clostridium difficile (C diff)
• Cluster headache
• Coarctation (narrowing) of aorta
• Cocaine abuse
• Cocaine overdose
• Coccidiomycosis (valley fever)
• Colic (pediatric intestinal pain)
• Colitis (large intestine inflammation)
• Colon cancer (large intestine tumor)
• Colon polyps (large intestine polyps)
• Colonic diverticulitis (large intestine inflammation of diverticula)
• Common cold (upper respiratory infection)
• Common spider bite
• Common warts
• Compartment syndrome (painful swelling in a limb)
• Complex migraine (complicated migraine)
• Complex regional pain syndrome
• Compression fracture
• Concussion (head injury)
• Confusion
• Congenital heart disease (heart defect at birth)
• Congestive heart failure (CHF)
• Conjunctivitis (pink eye)
• Constipation
• Contact dermatitis (contact skin irritation)
• Contact urticaria (hives)
• Contusion (bruise)
• Corneal abrasion (eye abrasion)
• Corneal foreign body (eye foreign body)
• Coronary artery anomaly (heart artery malformation)
• Coronary artery disease (CAD)
• Coronary artery dissection (heart artery tear)
• Costochondritis (chest wall inflammation)
• Cough medicine abuse
• Cough syncope (fainting while coughing)
• Cradle cap
• Crohn's disease (regional enteritis, Crohn's colitis, intestinal inflammation)
• Croup (upper airway inflammation)
• Cryptorchidism (undescended testicle)
• Cryptosporidia infection (diarrheal parasite infection)
• Cubital tunnel syndrome
• Cushing disease (excessive cortisol disease)
• Cutaneous larva migrans
• Cyclospora infection
• Cystic fibrosis
• Cystocele (bladder hernia)
• Cytomegalovirus infection (CMV viral infection)