Table 4.

Focused medical history and physical examination

QuestionsSupportive informationImplications
Presentation Duration of symptoms Prior CBC/diff Inherited vs acquired 
Bleeding Platelet count, coagulation studies Transfusion requirements 
Fatigue Hemoglobin, pulse oximetry, CXR Transfusion requirements 
S/Sx of infection Fever, respiratory symptoms Identify and treat infections 
Medical history Adrenal hypoplasia  SAMD9 
Ataxia Brain MRI SAMD9L 
Atypical infections Immunologic testing, vaccination history SDS, GATA2, STS, SAMD9/9L 
Birth history Birth weight, gestational age, IUGR, anemia DBA, FA, SAMD9/9L, SDS, STS 
Cancer or leukemia Type of chemotherapy and toxicities IBMFS, secondary MDS 
Congenital malformations Echo, abdominal US, brain MRI, x-rays FA 
GI (diarrhea, difficulty swallowing) LFTs, abdominal US, endoscopy aAA, SDS, STS, PNH 
Growth Growth chart FA 
Hearing loss Audiogram FA, GATA2 
Nutrition (vegan, weight loss, supplements) B12/MMA/HC, ceruloplasmin/copper B12, folate, copper deficiency 
Pulmonary disease (TE fistula, fibrosis, pneumonia, alveolar proteinosis) CXR, CT, PFTs, bronchoscopy FA, GATA2, STS, SAMD9/9L 
Renal disease (congenital anomaly, dark urine) Urinalysis, renal US FA, PNH 
Skeletal dysplasia, skeletal abnormalities X-rays SDS, FA, DBA 
Family history Ancestry  Founder mutations in certain populations 
Consanguinity  Autosomal recessive disorders 
Full siblings  Potential marrow donors 
Marrow failure, MDS, leukemia, cancer  IBMFS 
Examination findings Syndromic facies  IBMFS 
Microcephaly  STS, SAMD9/9L 
Leukoplakia  STS 
Hepatomegaly  SDS 
Abnormal thumbs, radial abnormalities  FA 
Nail dysplasia  STS 
Lymphedema  GATA2 
Café-au-lait spots  FA 
Reticulated pigmentation on neck  STS 
Warts  GATA2 
QuestionsSupportive informationImplications
Presentation Duration of symptoms Prior CBC/diff Inherited vs acquired 
Bleeding Platelet count, coagulation studies Transfusion requirements 
Fatigue Hemoglobin, pulse oximetry, CXR Transfusion requirements 
S/Sx of infection Fever, respiratory symptoms Identify and treat infections 
Medical history Adrenal hypoplasia  SAMD9 
Ataxia Brain MRI SAMD9L 
Atypical infections Immunologic testing, vaccination history SDS, GATA2, STS, SAMD9/9L 
Birth history Birth weight, gestational age, IUGR, anemia DBA, FA, SAMD9/9L, SDS, STS 
Cancer or leukemia Type of chemotherapy and toxicities IBMFS, secondary MDS 
Congenital malformations Echo, abdominal US, brain MRI, x-rays FA 
GI (diarrhea, difficulty swallowing) LFTs, abdominal US, endoscopy aAA, SDS, STS, PNH 
Growth Growth chart FA 
Hearing loss Audiogram FA, GATA2 
Nutrition (vegan, weight loss, supplements) B12/MMA/HC, ceruloplasmin/copper B12, folate, copper deficiency 
Pulmonary disease (TE fistula, fibrosis, pneumonia, alveolar proteinosis) CXR, CT, PFTs, bronchoscopy FA, GATA2, STS, SAMD9/9L 
Renal disease (congenital anomaly, dark urine) Urinalysis, renal US FA, PNH 
Skeletal dysplasia, skeletal abnormalities X-rays SDS, FA, DBA 
Family history Ancestry  Founder mutations in certain populations 
Consanguinity  Autosomal recessive disorders 
Full siblings  Potential marrow donors 
Marrow failure, MDS, leukemia, cancer  IBMFS 
Examination findings Syndromic facies  IBMFS 
Microcephaly  STS, SAMD9/9L 
Leukoplakia  STS 
Hepatomegaly  SDS 
Abnormal thumbs, radial abnormalities  FA 
Nail dysplasia  STS 
Lymphedema  GATA2 
Café-au-lait spots  FA 
Reticulated pigmentation on neck  STS 
Warts  GATA2 

CBC/diff, complete blood count with differential; CT, computerized tomography; CXR, chest x-ray; GI, gastrointestinal; IUGR, intrauterine growth retardation; GATA2, GATA2 deficiency; HC, homocysteine; LFT, liver function testing; MMA, methylmalonic acid; magnetic resonance imaging; PFT, pulmonary function test; S/Sx, signs/symptoms; SAMD9/9L, SAMD9/SAMD9L disorders; TE, tracheoesophageal fistula; US, ultrasound.

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