Clinical Trials by Condition: C
- CADASIL (29)
- CANDLE Syndrome (6)
- CD4 Deficiency (3)
- CDKL5 Deficiency Disorder (73)
- CHARGE Syndrome (2)
- CHD2 Myoclonic Encephalopathy (1)
- CHILD Syndrome (7)
- CLIPPERS (2)
- CLOVES Syndrome (3)
- COASY Protein-Associated Neurodegeneration (1)
- COVID-19 (9,314)
- CREST Syndrome (9)
- Cachexia (424)
- Cadaver (25)
- Calcinosis (370)
- Calcinosis Cutis (6)
- Calciphylaxis (16)
- Calcium Metabolism Disorders (588)
- Calculi (1,071)
- Caliciviridae Infections (16)
- Callosities (19)
- Campylobacter Infections (13)
- Camurati-Engelmann Disease (120)
- Canavan Disease (10)
- Cancer Pain (368)
- Candida Glabrata (2)
- Candidemia (76)
- Candidiasis (336)
- Candidiasis, Chronic Mucocutaneous (5)
- Candidiasis, Invasive (107)
- Candidiasis, Oral (51)
- Candidiasis, Vulvovaginal (92)
- Capillary Leak Syndrome (5)
- Capillary Malformation-arteriovenous Malformation Syndrome (1)
- Capsule Opacification (165)
- Carbamoyl Phosphate Synthetase 1 Deficiency (10)
- Carbamoyl-Phosphate Synthase I Deficiency Disease (10)
- Carbohydrate Metabolism, Inborn Errors (612)
- Carbon Monoxide Poisoning (39)
- Carbuncle (2)
- Carcinogenesis (212)
- Carcinoid Heart Disease (5)
- Carcinoid Syndrome (72)
- Carcinoid Tumor (227)
- Carcinoma (24,142)
- Carcinoma in Situ (592)
- Carcinoma, Acinar Cell (50)
- Carcinoma, Adenoid Cystic (144)
- Carcinoma, Adenosquamous (126)
- Carcinoma, Basal Cell (399)
- Carcinoma, Basosquamous (1)
- Carcinoma, Bronchogenic (5,951)
- Carcinoma, Ductal (366)
- Carcinoma, Ductal, Breast (206)
- Carcinoma, Embryonal (41)
- Carcinoma, Endometrioid (115)
- Carcinoma, Giant Cell (3)
- Carcinoma, Hepatocellular (2,834)
- Carcinoma, Intraductal, Noninfiltrating (244)
- Carcinoma, Islet Cell (75)
- Carcinoma, Large Cell (28)
- Carcinoma, Lobular (101)
- Carcinoma, Medullary (66)
- Carcinoma, Merkel Cell (131)
- Carcinoma, Mucoepidermoid (80)
- Carcinoma, Neuroendocrine (384)
- Carcinoma, Non-Small-Cell Lung (6,683)
- Carcinoma, Ovarian Epithelial (3,095)
- Carcinoma, Pancreatic Ductal (54)
- Carcinoma, Papillary (51)
- Carcinoma, Papillary, Follicular (1)
- Carcinoma, Renal Cell (2,057)
- Carcinoma, Signet Ring Cell (13)
- Carcinoma, Skin Appendage (4)
- Carcinoma, Small Cell (157)
- Carcinoma, Squamous Cell (3,301)
- Carcinoma, Transitional Cell (847)
- Carcinoma, Verrucous (141)
- Carcinosarcoma (114)
- Cardiac Complexes, Premature (239)
- Cardiac Conduction System Disease (1,119)
- Cardiac Output, High (26)
- Cardiac Output, Low (86)
- Cardiac Rupture (5)
- Cardiac Tamponade (6)
- Cardio-Renal Syndrome (76)
- Cardiofaciocutaneous Syndrome (4)
- Cardiomegaly (348)
- Cardiomyopathies (1,392)
- Cardiomyopathy Due to Anthracyclines (2)
- Cardiomyopathy, Alcoholic (1)
- Cardiomyopathy, Dilated (230)
- Cardiomyopathy, Hypertrophic (240)
- Cardiomyopathy, Hypertrophic, Familial (9)
- Cardiomyopathy, Restrictive (11)
- Cardiospasm (120)
- Cardiotoxicity (267)
- Cardiovascular Abnormalities (2,212)
- Cardiovascular Infections (103)
- Caregiver Burden (285)
- Carney Complex (4)
- Carnitine Palmitoyl Transferase 1A Deficiency (3)
- Carnitine Palmitoyltransferase 2 Deficiency (6)
- Carnitine-acylcarnitine Translocase Deficiency (5)
- Caroli Disease (3)
- Carotid Artery Diseases (505)
- Carotid Artery Injuries (5)
- Carotid Artery Thrombosis (1)
- Carotid Stenosis (309)
- Carotid-Cavernous Sinus Fistula (1)
- Carpal Tunnel Syndrome (409)
- Carpenter Syndrome (2)
- Cartilage Diseases (157)
- Cartilage-hair Hypoplasia (2)
- Castleman Disease (40)
- Cat-Scratch Disease (2)
- Catalepsy (2)
- Cataplexy (50)
- Cataract (1,547)
- Catastrophic Antiphospholipid Syndrome (2)
- Catastrophic Illness (1)
- Catatonia (14)
- Catecholaminergic Polymorphic Ventricular Tachycardia (13)
- Catheter-Related Infections (106)
- Cauda Equina Syndrome (6)
- Caudal Regression Sequence (2)
- Causalgia (16)
- Cavernous Sinus Thrombosis (1)
- Cecal Diseases (374)
- Celiac Disease (335)
- Cell Transformation, Neoplastic (158)
- Cellulite (70)
- Cellulitis (217)
- Cementoma (1)
- Central Centrifugal Cicatricial Alopecia (11)
- Central Congenital Hypothyroidism (3)
- Central Cord Syndrome (7)
- Central Core Disease (1)
- Central Diabetes Insipidus (14)
- Central Nervous System Bacterial Infections (174)
- Central Nervous System Cysts (3)
- Central Nervous System Diseases (31,056)
- Central Nervous System Fungal Infections (52)
- Central Nervous System Germinoma (76)
- Central Nervous System Infections (823)
- Central Nervous System Neoplasms (2,644)
- Central Nervous System Vascular Malformations (60)
- Central Nervous System Viral Diseases (194)
- Central Neurocytoma (3)
- Central Pain Syndrome (6)
- Central Serous Chorioretinopathy (80)
- Centronuclear Myopathy (15)
- Cerebellar Astrocytoma, Childhood (94)
- Cerebellar Ataxia (363)
- Cerebellar Ataxia Ectodermal Dysplasia (1)
- Cerebellar Ataxia and Hypogonadotropic Hypogonadism (1)
- Cerebellar Degeneration (7)
- Cerebellar Diseases (281)
- Cerebellar Hypoplasia (1)
- Cerebellar Liponeurocytoma (1)
- Cerebellar Neoplasms (7)
- Cerebral Amyloid Angiopathy (27)
- Cerebral Amyloid Angiopathy, Familial (27)
- Cerebral Arterial Diseases (144)
- Cerebral Astrocytoma, Childhood (90)
- Cerebral Folate Deficiency (1)
- Cerebral Hemorrhage (371)
- Cerebral Hemorrhage, Traumatic (2)
- Cerebral Infarction (936)
- Cerebral Palsy (1,292)
- Cerebral Palsy Ataxic (4)
- Cerebral Palsy Athetoid (4)
- Cerebral Palsy Spastic Hemiplegic (21)
- Cerebral Small Vessel Diseases (400)
- Cerebral Ventricle Neoplasms (29)
- Cerebral Ventriculitis (5)
- Cerebrospinal Fluid Leak (50)
- Cerebrospinal Fluid Rhinorrhea (2)
- Cerebrotendinous Xanthomatosis (12)
- Cerebrovascular Disorders (8,519)
- Cerebrovascular Trauma (23)
- Cervical Dystonia (105)
- Cervical Intraepithelial Neoplasia (393)
- Chagas Cardiomyopathy (20)
- Chagas Disease (77)
- Chalazion (12)
- Chanarin-Dorfman Syndrome (6)
- Channelopathies (15)
- Chaotic Atrial Tachycardia (2)
- Charcot-Marie-Tooth Disease (605)
- Charcot-Marie-Tooth Disease Type 1 (16)
- Charcot-Marie-Tooth Disease Type 1A (21)
- Charcot-Marie-Tooth Disease Type 1B (3)
- Charcot-Marie-Tooth Disease Type 1C (1)
- Charcot-Marie-Tooth Disease Type 1D (1)
- Charcot-Marie-Tooth Disease Type 1E (1)
- Charcot-Marie-Tooth Disease Type 1F (1)
- Charcot-Marie-Tooth Disease Type 2 (3)
- Charcot-Marie-Tooth Disease Type 2A (4)
- Charcot-Marie-Tooth Disease Type 2B (1)
- Charcot-Marie-Tooth Disease Type 2B1 (1)
- Charcot-Marie-Tooth Disease Type 2B2 (1)
- Charcot-Marie-Tooth Disease Type 2D (1)
- Charcot-Marie-Tooth Disease Type 2E (1)
- Charcot-Marie-Tooth Disease Type 2G (1)
- Charcot-Marie-Tooth Disease Type 2H (1)
- Charcot-Marie-Tooth Disease Type 2I (1)
- Charcot-Marie-Tooth Disease Type 2J (1)
- Charcot-Marie-Tooth Disease Type 2K (1)
- Charcot-Marie-Tooth Disease Type 2L (1)
- Charcot-Marie-Tooth Disease Type 2N (1)
- Charcot-Marie-Tooth Disease Type 2O (1)
- Charcot-Marie-Tooth Disease Type 2P (1)
- Charcot-Marie-Tooth Disease Type 2Q (1)
- Charcot-Marie-Tooth Disease Type 2R (1)
- Charcot-Marie-Tooth Disease Type 4 (1)
- Charcot-Marie-Tooth Disease Type 4A (2)
- Charcot-Marie-Tooth Disease Type 4B1 (1)
- Charcot-Marie-Tooth Disease Type 4B2 (1)
- Charcot-Marie-Tooth Disease Type 4C (2)
- Charcot-Marie-Tooth Disease Type 4D (1)
- Charcot-Marie-Tooth Disease Type 4E (1)
- Charcot-Marie-Tooth Disease Type 4F (1)
- Charcot-Marie-Tooth Disease Type 4H (1)
- Charles Bonnet Syndrome (3)
- Chediak-Higashi Syndrome (14)
- Cheilitis (10)
- Chemical and Drug Induced Liver Injury (59)
- Chemical and Drug Induced Liver Injury, Chronic (2)
- Chemically-Induced Disorders (7,353)
- Chemotherapy-Induced Febrile Neutropenia (16)
- Chemotherapy-Related Cognitive Impairment (41)
- Cherubism (2)
- Chest Pain (1,054)
- Cheyne-Stokes Respiration (31)
- Chiari Malformation Type 2 (63)
- Chickenpox (357)
- Chikungunya (65)
- Chikungunya Fever (65)
- Chilblains (6)
- Child Behavior Disorders (35)
- Child Development Disorders, Pervasive (1,449)
- Child Nutrition Disorders (123)
- Childhood Acute Lymphoblastic Leukemia (648)
- Childhood Apraxia of Speech (10)
- Childhood Brain Stem Glioma (103)
- Childhood Disintegrative Disorder (2)
- Childhood Hepatocellular Carcinoma (12)
- Childhood Hypophosphatasia (1)
- Childhood Supratentorial Embryonal Tumor, Not Otherwise Specified (86)
- Childhood-Onset Fluency Disorder (4)
- Childhood-Onset Schizophrenia (7)
- Children's Interstitial Lung Disease (2)
- Chills (15)
- Chlamydia Infections (209)
- Chlamydial Pneumonia (3)
- Choanal Atresia (1)
- Cholangiocarcinoma (795)
- Cholangitis (272)
- Cholangitis, Sclerosing (130)
- Cholecystitis (223)
- Cholecystitis, Acute (107)
- Cholecystolithiasis (375)
- Choledochal Cyst (10)
- Choledocholithiasis (86)
- Cholelithiasis (375)
- Cholera (83)
- Cholestasis (405)
- Cholestasis, Extrahepatic (18)
- Cholestasis, Intrahepatic (213)
- Cholesteatoma (21)
- Cholesteatoma, Middle Ear (4)
- Cholesterol Ester Storage Disease (33)
- Cholesteryl Ester Storage Disease (34)
- Choline Deficiency (5)
- Chondroblastoma (1)
- Chondrocalcinosis (47)
- Chondrodysplasia Punctata (4)
- Chondrodysplasia Punctata Syndrome (4)
- Chondrodysplasia Punctata, Rhizomelic (4)
- Chondroma (2)
- Chondromalacia Patellae (13)
- Chondrosarcoma (119)
- Chondrosarcoma, Clear Cell (1)
- Chondrosarcoma, Mesenchymal (6)
- Chordoid Glioma of the Third Ventricle (2)
- Chordoma (67)
- Chorea (242)
- Chorea-acanthocytosis (1)
- Chorioamnionitis (35)
- Choriocarcinoma (67)
- Chorioretinitis (13)
- Choristoma (11)
- Choroid Diseases (318)
- Choroid Hemorrhage (1)
- Choroid Neoplasms (5)
- Choroid Plexus Carcinoma (12)
- Choroid Plexus Neoplasms (85)
- Choroid Plexus Papilloma (1)
- Choroidal Effusions (5)
- Choroidal Neovascularization (319)
- Choroideremia (27)
- Choroiditis (48)
- Chromophil Renal Cell Carcinoma (50)
- Chromophobe Renal Cell Carcinoma (11)
- Chromosomal Instability (9)
- Chromosomal Triplication (86)
- Chromosome 15q Duplication (2)
- Chromosome 17p Deletion (20)
- Chromosome 1p36 Deletion Syndrome (2)
- Chromosome 1q21.1 Duplication Syndrome (1)
- Chromosome 3q29 Microduplication Syndrome (1)
- Chromosome 5p Deletion (1)
- Chromosome 5q Deletion (12)
- Chromosome 7q Duplication (1)
- Chromosome 9p Deletion (1)
- Chromosome Aberrations (366)
- Chromosome Deletion (18)
- Chromosome Disorders (808)
- Chronic Active Epstein-Barr Virus Infection (7)
- Chronic Disease (14,640)
- Chronic Eosinophilic Pneumonia (1)
- Chronic Erosive Gastritis (1)
- Chronic Exertional Compartment Syndrome (9)
- Chronic Graft Versus Host Disease (31,360)
- Chronic Granulomatous Disease (75)
- Chronic Inducible Urticaria (41)
- Chronic Inflammatory Demyelinating Polyneuropathy (81)
- Chronic Intestinal Pseudoobstruction (7)
- Chronic Kidney Disease-Mineral and Bone Disorder (54)
- Chronic Limb-Threatening Ischemia (337)
- Chronic Lymphocytic Leukemia (2,035)
- Chronic Myeloid Leukemia (1,293)
- Chronic Myelomonocytic Leukemia (581)
- Chronic Myeloproliferative Disorders (2,005)
- Chronic Neutrophilic Leukemia (111)
- Chronic Pain (2,734)
- Chronic Periodontitis (404)
- Chronic Progressive External Ophthalmoplegia (7)
- Chronic Recurrent Multifocal Osteomyelitis (5)
- Chronic Thromboembolic Pulmonary Hypertension (118)
- Chronic Traumatic Encephalopathy (21)
- Chronic Urticaria (187)
- Chronobiology Disorders (186)
- Churg-Strauss Syndrome (48)
- Chylomicron Retention Disease (2)
- Chylothorax (10)
- Chylothorax, Congenital (1)
- Cicatrix (1,189)
- Cicatrix, Hypertrophic (109)
- Ciguatera Fish Poisoning (1)
- Ciguatera Poisoning (1)
- Ciliary Motility Disorders (63)
- Ciliopathies (285)
- Citrullinemia (13)
- Citrullinemia Type I (5)
- Citrullinemia Type II (1)
- Classic Galactosemia (12)
- Classical Ehlers-Danlos Syndrome (2)
- Classical Lissencephalies and Subcortical Band Heterotopias (1)
- Clear Cell Renal Cell Carcinoma (1,457)
- Cleft Lip (129)
- Cleft Palate (118)
- Cleidocranial Dysplasia (1)
- Clinical Deterioration (41)
- Cloacal Exstrophy (1)
- Clostridium Infections (485)
- Clubfoot (156)
- Cluster Headache (99)
- Coagulation Protein Disorders (899)
- Coal Worker's Pneumoconiosis (47)
- Coats Disease (9)
- Cocaine Antenatal Exposure (2)
- Cocaine-Related Disorders (410)
- Coccidioidomycosis (84)
- Coccidiosis (84)
- Coccygodynia (16)
- Cochlear Diseases (4)
- Cockayne Syndrome (10)
- Coenzyme Q10 Deficiency (4)
- Coffin-Lowry Syndrome (1)
- Cogan Syndrome (7)
- Cognition Disorders (3,285)
- Cognitive Dysfunction (3,666)
- Cohen Syndrome (1)
- Coinfection (261)
- Cold Agglutinin Disease (17)
- Cold Urticaria (17)
- Colic (200)
- Colitis (1,578)
- Colitis, Collagenous (8)
- Colitis, Ischemic (3)
- Colitis, Lymphocytic (7)
- Colitis, Microscopic (25)
- Colitis, Ulcerative (1,412)
- Collagen Diseases (9,428)
- Collagenous Sprue (1)
- Collecting Duct Carcinoma (12)
- Colles' Fracture (28)
- Colloid Cysts of Third Ventricle (1)
- Coloboma (10)
- Coloboma of Optic Nerve (2)
- Colonic Diseases (7,539)
- Colonic Diseases, Functional (912)
- Colonic Neoplasms (1,055)
- Colonic Polyps (362)
- Colonic Pseudo-Obstruction (6)
- Color Vision Defects (20)
- Colorectal Neoplasms (6,534)
- Colorectal Neoplasms, Hereditary Nonpolyposis (95)
- Coma (234)
- Coma, Post-Head Injury (4)
- Combat Disorders (45)
- Common Bile Duct Diseases (102)
- Common Bile Duct Neoplasms (5)
- Common Cold (176)
- Common Variable Immunodeficiency (53)
- Communicable Diseases (45,409)
- Communicable Diseases, Emerging (10)
- Communication Disorders (961)
- Community-Acquired Infections (32)
- Compartment Syndromes (115)
- Compassion Fatigue (28)
- Complement Component Deficiency (1)
- Complete Androgen Insensitivity Syndrome (2)
- Complete Atrioventricular Canal (6)
- Complex Regional Pain Syndromes (174)
- Composite Lymphoma (3)
- Compulsive Behavior (466)
- Compulsive Exercise (6)
- Compulsive Personality Disorder (544)
- Conduct Disorder (283)
- Condylomata Acuminata (100)
- Cone Dystrophy (33)
- Cone-Rod Dystrophies (19)
- Cone-rod Dystrophy 2 (17)
- Confusion (1,024)
- Congenital Abnormalities (8,040)
- Congenital Adrenal Hyperplasia (147)
- Congenital Amegakaryocytic Thrombocytopenia (9)
- Congenital Amputation (3)
- Congenital Aplastic Anemia (103)
- Congenital Bilateral Absence of the Vas Deferens (1)
- Congenital Bone Marrow Failure Syndromes (134)
- Congenital Central Hypoventilation Syndrome (9)
- Congenital Contractural Arachnodactyly (1)
- Congenital Cytomegalovirus (51)
- Congenital Diaphragmatic Hernia (83)
- Congenital Disorders of Glycosylation (14)
- Congenital Dyserythropoietic Anemia (6)
- Congenital Dyserythropoietic Anemia Type 1 (2)
- Congenital Erythropoietic Porphyria (61)
- Congenital Fiber Type Disproportion (1)
- Congenital Fibrosis of Extraocular Muscles (1)
- Congenital Generalized Lipodystrophy (11)
- Congenital Heart Block (7)
- Congenital Hemolytic Anemia (5)
- Congenital Hepatic Fibrosis (3)
- Congenital Herpes Simplex (8)
- Congenital Human Immunodeficiency Virus (1)
- Congenital Hyperinsulinism (50)
- Congenital Hypopituitarism (2)
- Congenital Hypothyroidism (16)
- Congenital Insensitivity to Pain (1)
- Congenital Lymphedema (13)
- Congenital Mesoblastic Nephroma (7)
- Congenital Microtia (20)
- Congenital Mirror Movement Disorder (8)
- Congenital Muscular Dystrophy (16)
- Congenital Muscular Dystrophy Due to Dystroglycanopathy (3)
- Congenital Muscular Dystrophy Due to LMNA Mutation (1)
- Congenital Muscular Dystrophy Type 1A (4)
- Congenital Myasthenic Syndromes (13)
- Congenital Myotonic Dystrophy (6)
- Congenital Pseudoarthrosis (5)
- Congenital Rubella (2)
- Congenital Sucrase-isomaltase Deficiency (10)
- Congenital Thrombotic Thrombocytopenic Purpura (8)
- Congenital Torticollis (13)
- Congenital Tracheal Stenosis (1)
- Congenital Vertical Talus (2)
- Congenital Zika Syndrome (2)
- Congenitally Corrected Transposition of the Great Arteries (3)
- Conjunctival Diseases (1,311)
- Conjunctival Melanoma (10)
- Conjunctival Neoplasms (6)
- Conjunctivitis (1,205)
- Conjunctivitis, Allergic (214)
- Conjunctivitis, Bacterial (78)
- Conjunctivitis, Inclusion (10)
- Conjunctivitis, Viral (16)
- Connective Tissue Diseases (6,641)
- Conotruncal Heart Malformations (3)
- Consciousness Disorders (543)
- Constipation (950)
- Constriction, Pathologic (3,277)
- Continuous Spike-wave During Slow Sleep Syndrome (7)
- Contracture (187)
- Contusions (74)
- Convalescence (28)
- Conversion Disorder (205)
- Coproporphyria, Hereditary (13)
- Corneal Diseases (1,648)
- Corneal Dystrophies, Hereditary (113)
- Corneal Edema (44)
- Corneal Endothelial Cell Loss (28)
- Corneal Endothelial Dystrophy Type 2 (13)
- Corneal Injuries (34)
- Corneal Neovascularization (26)
- Corneal Opacity (40)
- Corneal Perforation (4)
- Corneal Ulcer (64)
- Corneal Wavefront Aberration (8)
- Cornelia De Lange Syndrome (5)
- Coronary Aneurysm (28)
- Coronary Artery Aneurysm (28)
- Coronary Artery Disease (9,494)
- Coronary Disease (6,059)
- Coronary Occlusion (109)
- Coronary Restenosis (119)
- Coronary Stenosis (418)
- Coronary Thrombosis (22)
- Coronary Vasospasm (30)
- Coronary Vessel Anomalies (26)
- Coronaviridae Infections (7,711)
- Coronavirus Infections (7,961)
- Corpus Callosum Agenesis (16)
- Corticobasal Degeneration (42)
- Corticosteroid-sensitive Aseptic Abscesses (1)
- Corynebacterium Infections (252)
- Costello Syndrome (5)
- Cough (793)
- Cowden Syndrome (8)
- Coxa Vara (2)
- Coxa Vara, Congenital (2)
- Coxsackievirus Infections (60)
- Cramp-fasciculation Syndrome (1)
- Cranial Nerve Diseases (1,153)
- Cranial Nerve Injuries (50)
- Craniocerebral Trauma (2,725)
- Cranioectodermal Dysplasia (1)
- Craniofacial Abnormalities (412)
- Craniofacial Dysostosis (25)
- Craniofacial Fibrous Dysplasia (1)
- Craniofacial Microsomia (10)
- Craniofrontonasal Dysplasia (1)
- Craniomandibular Disorders (359)
- Craniopharyngioma (109)
- Craniosynostoses (40)
- Creutzfeldt-Jakob Disease (9)
- Creutzfeldt-Jakob Syndrome (8)
- Cri-du-Chat Syndrome (2)
- Crigler Najjar Syndrome, Type 1 (13)
- Crigler-Najjar Syndrome (13)
- Critical Illness (2,346)
- Crohn Disease (1,605)
- Cross Infection (591)
- Croup (35)
- Crouzon Syndrome (47)
- Crush Injuries (146)
- Crush Syndrome (1)
- Crusted Scabies (1)
- Cryoglobulinemia (14)
- Cryoglobulinemic Vasculitis (10)
- Cryopyrin-Associated Periodic Syndromes (32)
- Cryptococcosis (67)
- Cryptogenic Organizing Pneumonia (3)
- Cryptorchidism (31)
- Cryptosporidiosis (28)
- Crystal Arthropathies (240)
- Crystalluria (3)
- Cubital Tunnel Syndrome (25)
- Cumulative Trauma Disorders (466)
- Currarino Triad (1)
- Cushing Syndrome (112)
- Cutaneous Fistula (6)
- Cutaneous Lupus Erythematosus (68)
- Cutaneous Mastocytosis (10)
- Cutaneous Polyarteritis Nodosa (2)
- Cutaneous Sclerosis (2)
- Cutaneous T-cell Lymphoma (529)
- Cutaneous-skeletal Hypophosphatemia Syndrome (1)
- Cutis Laxa (119)
- Cyanosis (12)
- Cyberbullying (11)
- Cyclothymic Disorder (6)
- Cystadenocarcinoma (270)
- Cystadenocarcinoma, Mucinous (56)
- Cystadenocarcinoma, Serous (243)
- Cystadenoma (9)
- Cystadenoma, Mucinous (5)
- Cystadenoma, Serous (5)
- Cystic Adenomatoid Malformation of Lung (5)
- Cystic Adenomatoid Malformation of Lung, Congenital (5)
- Cystic Fibrosis (1,454)
- Cystic Hygroma (4)
- Cysticercosis (28)
- Cystinosis (39)
- Cystinuria (23)
- Cystitis (297)
- Cystitis, Interstitial (205)
- Cystocele (69)
- Cysts (1,383)
- Cytokine Release Syndrome (125)
- Cytomegalic Inclusion Disease (400)
- Cytomegalovirus Infections (400)
- Cytomegalovirus Retinitis (65)