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Cytomegalovirus (CMV) infection Cytomegalovirus infection (See: Cytomegalovirus (CMV) infection) Overview Cytomegalovirus (CMV) is a common virus that can infect almost anyone. Once infected, your body retains the virus for

Cystitis Cystitis, interstitial (See: Interstitial cystitis) Cysts, epidermoid (See: Epidermoid cysts) Cysts, sebaceous (See: Epidermoid cysts) Overview Cystitis (sis-TIE-tis) is the medical term for inflammation of the bladder.

Cystic fibrosis Overview Cystic fibrosis is an inherited disorder that causes severe damage to the lungs, digestive system and other organs in the body. Cystic fibrosis affects the cells that produce mucus, sweat and digestive

Cyclothymia (cyclothymic disorder) Cyclothymic disorder (See: Cyclothymia (cyclothymic disorder)) Cyst, Bartholin’s (See: Bartholin’s cyst) Cyst, ganglion (See: Ganglion cyst) Cyst, kidney (See: Kidney cysts) Cyst,

Cyclospora infection Overview Cyclospora infection (cyclosporiasis) causes watery, and sometimes explosive, diarrhea. The one-celled parasite that causes cyclospora infection can enter your body when you ingest contaminated

Cyclic vomiting syndrome Overview Cyclic vomiting syndrome is characterized by episodes of severe vomiting that have no apparent cause. Episodes can last for hours or days and alternate with symptom-free periods. Episodes

Cutaneous T-cell lymphoma Overview Cutaneous T-cell lymphoma (CTCL) is a rare type of cancer that begins in white blood cells called T cells (T lymphocytes). These cells normally help your body’s germ-fighting immune

Nonmelanoma skin cancer Cutaneous B-cell lymphoma is a rare type of cancer that begins in the white blood cells and attacks the skin. Cutaneous B-cell lymphoma begins in the B cells — one type of disease-fighting white

Cushing syndrome Overview Cushing syndrome occurs when your body is exposed to high levels of the hormone cortisol for a long time. Cushing syndrome, sometimes called hypercortisolism, may be caused by the use of oral corticosteroid

Cryptosporidium infection CTCL (See: Cutaneous T-cell lymphoma) Curvature of the penis (See: Peyronie’s disease) Curvature of the spine (See: Scoliosis) Overview Cryptosporidium infection (cryptosporidiosis) is an illness