title: Index of suspicion.
abstract: Case 1: Facial and upper extremity weakness in a 16-year-old boy. Case 2: Hematochezia in a neonate. Case 3: bad body odor in a 13-year-old girl.
authors.affiliation: UMDNJ-New Jersey Medical School, Newark, NJ.
authors.forename: Tony
authors.initials: T
authors.lastname: Tarchichi
authors.forename: Kristen
authors.initials: K
authors.lastname: Wong
authors.forename: Marisa M
authors.initials: MM
authors.lastname: Fisher
authors.forename: Pablo
authors.initials: P
authors.lastname: Palomo
authors.forename: Fernando
authors.initials: F
authors.lastname: Zapata
authors.forename: Erawati V
authors.initials: EV
authors.lastname: Bawle
mesh_terms: D000293:Adolescent; D000925:Anticoagulants / Q000627:therapeutic use; D003937:Diagnosis, Differential; D004035:Diet Therapy; D019320:Embolism, Paradoxical / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000209:etiology; D005770:Gastrointestinal Neoplasms / Q000150:complications / Q000175:diagnosis*; D006391:Hemangioma / Q000150:complications / Q000175:diagnosis*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008661:Metabolism, Inborn Errors / Q000175:diagnosis* / Q000652:urine; D008744:Methylamines / Q000652:urine*; D018908:Muscle Weakness / Q000175:diagnosis* / Q000209:etiology; D009812:Odorants; D020521:Stroke / Q000175:diagnosis* / Q000209:etiology
chemical_list: D000925:Anticoagulants; D008744:Methylamines; C023336:trimethylamine