Pediatric Rubella Differential Diagnoses
- Author: Elias Ezike, MD; Chief Editor: Russell W Steele, MD more...
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- Table 1. Reported Cases of Rubella, Deaths From Rubella, and Number of Cases of Congenital Rubella Syndrome in the United States From 1969-2007[2, 3, 4, 5]
- Table 2. Clinicopathologic Abnormalities in Congenital Rubella
- Table 3. Age-Specific CD4+ T-lymphocyte Count and Percentage of Total Lymphocytes as a Criteria for Severe Immunosuppression in Persons with HIV
| Year | Number of Cases | Number of Deaths | Cases of Congenital Rubella Syndrome |
| 1969 | 57,686 | 29 | 31 |
| 1970 | 56,552 | 31 | 77 |
| 1971 | 45,086 | 20 | 68 |
| 1972 | 25,507 | 14 | 42 |
| 1973 | 27,804 | 16 | 35 |
| 1974 | 11,917 | 15 | 45 |
| 1975 | 16,652 | 21 | 30 |
| 1976 | 12,491 | 12 | 30 |
| 1977 | 20,395 | 17 | 23 |
| 1978 | 18,269 | 10 | 30 |
| 1979 | 11,795 | 1 | 62 |
| 1980 | 3,904 | 1 | 50 |
| 1981 | 2,077 | 5 | 19 |
| 1982 | 2,325 | 4 | 7 |
| 1983 | 970 | 3 | 22 |
| 1984 | 752 | 1 | 5 |
| 1985 | 630 | 1 | 0 |
| 1986 | 551 | 1 | 5 |
| 1987 | 306 | 0 | 5 |
| 1988 | 225 | 1 | 6 |
| 1989 | 396 | 4 | 3 |
| 1990 | 1,125 | 8 | 11 |
| 1991 | 1,401 | 1 | 47 |
| 1992 | 160 | 1 | 11 |
| 1993 | 192 | 0 | 5 |
| 1994 | 227 | 0 | 7 |
| 1995 | 128 | 1 | 6 |
| 1996 | 238 | 0 | 4 |
| 1997 | 181 | 0 | 5 |
| 1998 | 364 | 0 | 7 |
| 1999 | 267 | 0 | 9 |
| 2000 | 176 | 0 | 9 |
| 2001 | 23 | 2 | 3 |
| 2002 | 18 | N/A | 1 |
| 2003 | 7 | N/A | 1 |
| 2004 | 10 | N/A | 0 |
| 2005 | 11 | N/A | 1 |
| 2006 | 11 | N/A | 1 |
| 2007 | 12 | N/A | 0 |
| Abnormality | Common/Uncommon | Early/Delayed | Comment |
| General | |||
| Intrauterine growth retardation | Common | Early | ... |
| Prematurity | Uncommon | Early | ... |
| Stillbirth | Uncommon | Early | ... |
| Abortion | Uncommon | Early | ... |
| Cardiovascular system | |||
| Patent ductus arteriosus | Common | Early | May occur with pulmonary artery stenosis |
| Pulmonary artery stenosis | Common | Early | Caused by intimal proliferation |
| Coarctation of the aorta | Uncommon | Early | ... |
| Myocarditis | Uncommon | Early | ... |
| Ventricular septal defect | Uncommon | Early | ... |
| Atrial septal defect | Uncommon | Early | ... |
| Eye | |||
| Cataract | Common | Early | Unilateral or bilateral |
| Retinopathy | Common | Early | Salt-and-pepper appearance; visual acuity unaffected; frequently unilateral |
| Cloudy cornea | Uncommon | Early | Spontaneous resolution |
| Glaucoma | Uncommon | Early/Delayed | May be bilateral |
| Microphthalmia | Common | Early | Common in patients with unilateral cataract |
| Subretinal neovascularization | Uncommon | Delayed | Retinopathy with macular scarring and loss of vision |
| Ear | |||
| Hearing loss | Common | Early/Delayed | Usually bilateral; mostly sensorineural; may be central in origin; rare when maternal rubella occurs >4 months' gestation; sometimes progressive |
| CNS | |||
| Meningoencephalitis | Uncommon | Early | Transient |
| Microcephaly | Uncommon | Early | May be associated with normal intelligence |
| Intracranial calcifications | Uncommon | Early | ... |
| Encephalographic abnormalities | Common | Early | Usually disappear by age 1 y |
| Mental retardation | Common | Delayed | ... |
| Behavioral disorders | Common | Delayed | Frequently related to deafness |
| Autism | Uncommon | Delayed | ... |
| Chronic progressive panencephalitis | Uncommon | Delayed | Manifest in second decade of life |
| Hypotonia | Uncommon | Early | Transitory defect |
| Speech defects | Common | Delayed | Uncommon in absence of hearing loss |
| Skin | |||
| Blueberry muffin spots | Uncommon | Early | Represents dermal erythropoiesis |
| Chronic rubelliform rash | Uncommon | Early | Usually generalized; lasts several weeks |
| Dermatoglyphic abnormalities | Common | Early | ... |
| Lungs | |||
| Interstitial pneumonia | Uncommon | Delayed | Generalized; probably immunologically mediated |
| Liver | |||
| Hepatosplenomegaly | Common | Early | Transient |
| Jaundice | Uncommon | Early | Usually appears in the first day of life |
| Hepatitis | Uncommon | Early | May not be associated with jaundice |
| Blood | |||
| Thrombocytopenia | Common | Early | Transient; no response to steroid therapy |
| Anemia | Uncommon | Early | Transient |
| Hemolytic anemia | Uncommon | Early | Transient |
| Altered blood group expression | Uncommon | Early | ... |
| Immune system | |||
| Hypogammaglobulinemia | Uncommon | Delayed | Transient |
| Lymphadenopathy | Uncommon | Early | Transient |
| Thymic hypoplasia | Uncommon | Early | Fatal |
| Bone | |||
| Radiographic lucencies | Common | Early | Transient; most common in distal femur and proximal tibia |
| Large anterior fontanel | Uncommon | Early | ... |
| Micrognathia | Uncommon | Early | ... |
| Endocrine glands | |||
| Diabetes mellitus | Common | Delayed | Usually becomes apparent in second or third decade of life |
| Thyroid disease | Uncommon | Delayed | Hypothyroidism, hyperthyroidism, and thyroiditis |
| Growth hormone deficiency | Uncommon | Delayed | ... |
| Genitourinary system | |||
| Cryptorchidism | Uncommon | Early | ... |
| Polycystic kidney | Uncommon | Early | ... |
| Age Range | ||||
| < 12 mo | 1-5 y | 6-12 y | ≥13 y | |
| Total CD4+ T-lymphocytes | < 750/mcl | < 500/mcl | < 200/mcl | < 200/mcl |
| CD4+ T-lymphocytes (as % of total lymphocytes) | < 15% | < 15% | < 15% | < 14% |

