Lymphomatoid granulomatosis differential diagnosis

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:

Overview

Lymphamtoid granulomatosis must be differentiated from Bronchocentric granulomatosis and Churg-Strauss, Necrotizing sarcoid granulomatosis, Wegeners granulomatosis, Hodgkins disease, Non-hodgkin lymphoma, and Nasal angiocentric lymphoma

Differentiating Lymphamatoid granulomatosis from other Diseases

As Lymphamatoid granulomatosis manifests in a variety of clinical forms, differentiation must be established in accordance with the particular subtypes pulmonary being the most common. The sub types are the following:

  • Pulmonary
  • CNS
  • Dermatologic

Pulmonary Lymphamatoid granulomatosis must be differentiated from other diseases that cause:

  • Cough(non-productive, rarely hemoptysis can occur)
  • Dyspnea
  • Chest tightness

Other Symptoms that are asscociated with the pulmonary symptoms are:

  • Malaise
  • Weight loss
  • Fatigue

From the symptoms listed above; Lymphamatoid granulomatosis is usually differtiated from the following diseases Bronchocentric granulomatosis and Churg-Strauss, Necrotizing sarcoid granulomatosis, Wegeners granulomatosis, Hodgkins disease, Non-hodgkin lymphoma, and Nasal angiocentric lymphoma.

In contrast, CNS lymphamatoid granulomatosis must be differentiated from other diseases that cause:

  • Mental status changes
  • Headaches
  • Seizures
  • Hemiparesis
  • Ataxia

The differentials are the following CVA and Brain tumors or CNS lymphoma.

Finally Dermatologic Lymphamatoid granulomatosis must also be differtiated from other diseases that cause:

  • Erythematous rash
  • Macules
  • Papules
  • Plaques
  • Subcutaneous nodules
  • Larger ulcerated nodules

The differentials are the following Dermatomyositis, and Psoriasis

Differentiating Lymphamatoid Granulomatosis

On the basis of Cough, Dyspnea, and Chest tightness, Lymphamatoid granulomatosis must be differentiated from Bronchocentric granulomatosis and Churg-Strauss, Necrotizing sarcoid granulomatosis, Wegeners granulomatosis, Hodgkins disease, Non-hodgkin lymphoma, and Nasal angiocentric lymphoma.

Diseases Clinical manifestations Para-clinical findings Gold standard Additional findings
Symptoms Physical examination
Lab Findings Imaging Histopathology
Cough Dyspnea Chest tightness Auscultation Lab findings Lab 2 Lab 3 X-ray CT scan Imaging 3
Bronchocentric granulomatosis + + + Wheezing

Rales

Rhonchi

Eosinophilia
  • Usually solitary lesions that appear on chest Xray as atelectasis or consolidation, not nodules
  • Large and medium bronchi infiltrated by neutrophils, eosinophils and necrotic debris surrounded by foreign body giant cells
  • Fragmented elastic tissue (with elastic stain)
  • Also bronchiolitis obliterans
  • No fibrinoid necrosis of vessels
  • Granulomatous disease of lungs in which almost all granulomas are centered in bronchi or bronchioles causing their destruction
  • A histologic pattern of disease, not a specific diagnosis
  • Usually adults, often with asthma history and limited to lungs, may be asymptomatic
Churg-Strauss syndrome + + + Wheezing

Rales

Rhonchi

  • Greater than 50% have positive ANCA, often antimyeloperoxidase
  • Eosinophilia
Pulmonary infiltrates:

Typically, these are transient patchy alveolar infiltrates.

  • Subpleural airspace consolidation; widespread consolidation is discerned occasionally.
  • Enlarged hilar or mediastinal lymph nodes on pulmonary thin-section CT scan
  • Lung and extrapulmonary sites with eosinophilic infiltrate,
  • Granulomatous reaction and pallisading giant cells near small arteries or arterioles, eosinophilic vasculitis
  • May have fibrin rich edema, lymphocytes, sarcoid-like granulomas.
  • Very rare
Necrotizing sarcoid granulomatosis + + - Wheezing Hilar adenopathy bihilar lymphadenopathy and reticulonodular infiltrates
  • Inflammatory and granulomatous reactions
  • Resembling lymphoma and atypia
  • Dense, noncaseating granulomatous infiltrate
  • Also Schaumann bodies
High levels of ACE in blood
  • Affects skin, lymph nodes and organs
  • Diagnosis of exclusion
  • Patients often have anergy to delayed hypersensitivity tests
Diseases Cough Dyspnea Chest thightness Auscultation Lab findings Lab 2 Lab 3 X-ray CT scan Imaging 3 Histopathology Gold standard Additional findings
Wegeners granulomatosis + + - Wheezing C- ANCA

Urinalysis:

Hematuria

Red cell casts

Biopsy: Granulomatous inflmmation within the arterial wall or in the perivascular area

chest X-ray shows:

  • nodules,
  • infiltrates or
  • cavities
    • Liquefactive or coagulative necrosis in lungs with huge number of eosinophils, multinucleated giant cells, as part of poorly formed granulomas, surrounded by pallisading histiocytes and giant cells with central necrosis
    • Destructive leukocytic angiitis of arteries and veins outside of the necrotic granuloma by neutrophils, plasma cells and eosinophils
  • p-ANCA: perinuclear staining, directed against myeloperoxidase, is usually negative, but positive in microscopic polyarteritis, inflammatory bowel disease, crescentic glomerulonephritis; ELISA test for anti-myeloperoxidase now available
Hodgkin disease - - -
  • Contains a small number of the characteristic neoplastic cells (Hodgkin and Reed-Sternberg cells or lymphocyte predominant cells) within a background rich in inflammatory cells
  • Parenchymal lung involvement occurs in 1/3 of patients with Hodgkin
  • Almost all have associated hilar or mediastinal adenopathy
massive mediastinal soft tissue masses consistent with lymphoma
  • Neoplastic cells are Hodgkin and Reed-Sternberg (HRS) cells
  • Effaced lymph node with variable number of HRS cells in a background of inflammatory cells
Reed Sternberg cells Development of Hodgkin's disease may in some patients be preceded by enhanced activation of Epstein–Barr virus
Non-hodgkin lymphoma - - - Can be caused by; EBV, HIV , Hep C, and HTLV
  • Sensitivity and specificity of diagnosis with fine needle aspiration increases with use of flow cytometry
Symptoms include enlarged lymph nodes, fever, night sweats, weight loss, and tiredness

References

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