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Hodgkin Disease

7

 

Paul Imbach

 

Contents

7.1

Definition .......................................................................................................................

64

7.2

Incidence ........................................................................................................................

64

7.3

Etiology and Pathogenesis .............................................................................................

64

7.4

Pathology and Immunology ...........................................................................................

65

 

7.4.1

Macroscopic Features ......................................................................................

65

 

7.4.2

Microscopic Features .......................................................................................

65

 

7.4.3

Molecular Biology ...........................................................................................

65

 

7.4.4

Immunophenotype ...........................................................................................

65

 

7.4.5

Histological Classification (WHO) ..................................................................

66

 

7.4.6 Approximate Frequency of Histological Subtype and Stage ...........................

66

7.5

Staging Classification.....................................................................................................

66

 

7.5.1 Ann Arbor Staging Classification ....................................................................

66

 

7.5.2

A/B Staging ......................................................................................................

67

7.6

Clinical Presentation ......................................................................................................

67

 

7.6.1 Involvement of Organs and Organ Systems.....................................................

67

7.7

Laboratory Analyses ......................................................................................................

68

 

7.7.1

Blood ................................................................................................................

68

 

7.7.2

Chemistry .........................................................................................................

69

 

7.7.3

Immunological Analyses .................................................................................

69

7.8

Radiological Evaluation .................................................................................................

69

 

7.8.1

Chest ................................................................................................................

69

 

7.8.2

Abdomen ..........................................................................................................

69

 

7.8.3

Bone .................................................................................................................

70

7.9

Differential Diagnosis ....................................................................................................

70

7.10

Treatment .......................................................................................................................

70

 

7.10.1

Chemotherapy ..................................................................................................

70

 

7.10.2

Radiotherapy ....................................................................................................

71

7.11

Prognosis........................................................................................................................

71

7.12

Follow-Up Observation..................................................................................................

71

7.13

Relapse

...........................................................................................................................

71

7.14 Side Effects ..............................................................................................and Sequelae

72

 

7.14.1 ........................................................Biochemical or Clinical Hypothyroidism

72

 

7.14.2 .......................................................................................

Gonadal Dysfunction

72

P. Imbach et al. (eds.), Pediatric Oncology,

63

DOI 10.1007/978-3-642-20359-6_7, © Springer-Verlag Berlin Heidelberg 2011

 

64

 

P. Imbach

 

 

7.14.3 Decrease in Bone Growth of Irradiated Area

................................................... 72

7.14.4

Pneumonitis and Pericarditis............................................................................

72

7.14.5

Infection After Splenectomy............................................................................

73

7.14.6

Secondary Tumors ...........................................................................................

73

7.1Definition

Hodgkin disease (HD) or Hodgkin Lymphoma (HL) is characterized by progressive, painless enlargement of lymph nodes, with continuous extension between lymph node regions

Diagnostic confirmation by histology of suspect lymph nodes, which are infiltrated by different cells (histiocytes, plasmocytes, lymphocytes, eosinophils, and neutrophils

The Reed–Sternberg cell is histologically pathognomonic (see below)

7.2Incidence

Five percent of all neoplasia in childhood

There are 7 in one million children below the age of 16 years with newly diagnosed Hodgkin disease

Incidence in males higher than in females, especially below 10 years of age. During adolescence the incidence is the same in females as in males

Equal frequency between different ethnic groups

Rare before the age of 5 years; increasing frequency until the age of 11 years; high rate during adolescence and until the age of 30 years

Peak incidence between 15 and 35 years of age and after 50 years

7.3Etiology and Pathogenesis

Correlation with infection (e.g., Epstein–Barr virus: prevalence in India > 90%, in Western countries 30–40%), genetic predisposition, disturbed humoral and cellular immune response (see below)

High incidence in patients with lupus erythematosus, rheumatoid disorders, ataxia telangiectasia, agammaglobulinemia

Correlation with socioeconomic status: the higher the socioeconomic status, the more frequently Hodgkin disease occurs

Genetics:

Familial occurrence known

Occurrence in siblings 7 times higher than expected, in monozygotic twins 50× higher, when one child has HD

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