Pedeiatrics III Flashcards
MC presenting symptom in cancer and transplant patients.
Fever (Due to Inc. infx w Cancer and Cancer Tx)
Malignant proliferation of leukocytes. MC Childhood cancer.
Fever, pallor, petechiae, lethargy, malaise, anorexia, bone or joint pain, LAD, Hepatosplenomegaly
Leukemia
Acute Lymphocytic Leukemia (ALL)
Acute Myelogenous Leukemia (AML)
Leukemia lab findings
WBC > 50,000 Anemia Thrombocytopenia
Peripheral smear= immature blast cells
Lumbar puncture for CNS involvement.
Leukemia Dx
Cell surface markers
t(12;21)- Translocation = MC favorable prognosis
t (9;22)- Translocation= Less common poor prognosis
4;11
Tx-
Chemotherapy for ALL- 80% cure rate
(Not effective for AML- 50% cure rate)
Bone Marrow Transplant
Leukemia Poor prognosis indicators
- < 1 YOA or > 10 YOA
- > 50,000 WBC
- CNS or testicular Dz Relapse AML= Very Poor
3rd MC childhood malignancy (2nd CNS Tumors)
Epstein Barr Virus may play a role.
Fatigue, anorexia, pruritus, painless LAD (cervical Supra clavicular) pleural effusion
Lymphoma (Hodgkin’s or Non-Hodgkin’s)
incidence Inc. w age. white>Black (M>F), almost always diffuse always malignant,
two forms and subtypes.
Non-Hodgkin’s Lymphoma
Non-Hodgkin’s Lymphoma subtypes
B Cell (Burkitt non small non-cleaved cell) Sporadic= North America Endemic= Africa (EBV*)
T Cell (Lymphoblastic)
Large Cell (B or T Cell origin)
MC Lymphoma affecting adolescents/ young adults
and age >50 YOA
Hodgkin’s Lymphoma
Specific symptoms of drenching night-sweats, weight-loss, >10% w/I 6 mos SOB mediastinal LAD
Poor prognosis
B Cell (Burkitt) NHL
Lymphoma Dx
- CBC (Usually normal)
- Tissue Bx (Pleural/peritoneal) Reed Steinberg cells
Hodgkin’s Lymphoma - Bone Marrow (>25% blasts = Acute Leukemia)
Lymphoma Tx
Hodgkin’s = Chemo (LD) and Radio Therapy
90% 5 year survival (Stage I and II)
NHL = Aggressive/Persistent Chemo
(Rare Sx and Radiation) 70-90% 3 yr survival
MC solid tumor in children 2nd MC childhood malignancy. Loss of of dev. milestones. irritability, anorexia, poor school performance. ICP,
CN deficits except 6th CN = brainstem involvement
Pituitary-Prolactinoma= Galactorrhea
GH secreting= Precocious Puberty
CNS Tumors
<2 YOA rapidly growing tumor, bad locale. vomiting, lethargy, irritability and ataxia.
Can also be slow growing w/ Macrocephaly, hyper reflexia, cranial nerve palsies, weight loss.
Acute or Chronic Infratentorial (65%)- Cerebellum and brainstem (35% cerebrum)
Chronic= slow growing etc.
> 2 YOA Visual S/S, seizures (General or partial) focal neural deficits, personality changes.
May also be hydrocephalus and increased ICP (Papilledema) cranial nerve palsies and ataxia
Supratentorial (visual S/S and focal Deficits)
Infratentorial (ICP Papilledema)
MC type of brain tumor: usually found in posterior fossa. Low Grade = good prognosis
Astrocytoma
2nd MC Brain Tumor most often found in cerebellar vermis. High grade= variable prognosis
Medulloblastomas
Dx of brain tumor work up
Neuro PE
CT and MRI
LP, X-ray and EEG (Never LP w/o imaging)
MC childhood solid neoplasm outside CNS and MC infant malignancy @ 20 mos. From neuro crest cells
in adrenal medulla/symp. system (anywhere)
MC abd. mass (flank, hard, smooth, nontender) Abd. pain* w Horner’s syndrome neck apical masses. profuse sweating, secretory diarrhea, Opsomyoclonus (dancing eye/feet)
Neuroblastoma
Neuroblastoma Dx
Tissue Bx and Bone marrow aspiration
90% catecholamines (Urine) (Vanillymandelic/homovanillic acid)
CT (chest, abd, Pelvis) Bone scan and X-ray (Calcifi)
Neuroblastoma Tx:
Sx, Chemo, Radiation
5 year survival depends on stage. Favorable =<1 YOA
MC Malignant renal tumor of childhood. assoc w/ Wilm’s tumor, Aniridia (Absent Iris), GU malformation, MR, Beckwith-Weidman Syndrome–> Increased risk.
Abdominal Mass, fever, HTN, Hematuria. Mean age 3-3.5 YOA: prognosis = Good Tx = Sx mainstay, chemo/rad
Nephroblastoma
Beckwith-Wiedmann Syndrome clinical Present.
Macroglossia, Umbilical Hernia, Omphalocele.
–> Inc. risk of Nephroblastoma.