Eggshell Calcification Mediastinal Lymphadenopathy

Eggshell Calcification Definition:

• Mediastinal lymphadenopathy where the periphery of the nodes are calcified - eggshell calcification.
• Sometimes the central portions may also show calcification.
• The ringlike shadow must be complete in at least one of the lymph nodes to fulfil the radiological criteria.

Important Causes:

• Coal worker's pneumoconiosis
• Lymphoma
• Sarcoidosis
• Silicosis

Other rare causes:

• Amyloidosis
• Blastomycosis
• Histoplasmosis
• Scleroderma
• Tuberculosis

Tags: Amyloidosis - Blastomycosis - Coal Worker's Pneumoconiosis - Eggshell Calcification - Histoplasmosis - Lymphoma - Sarcoidosis - Scleroderma - Silicosis - Tuberculosis
Posted by Medicalchemy
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Pneumonia With Hilar Lymphadenopathy - Causes

General causes:

• Any post-obstructive pneumonia

Viral causes:

• Ebstein-Barr virus
• Rubella
• Varicella

Chlamydial causes:

• Chlamydia psittaci

Rickettsial causes:

• Q-fever

Bacterial causes:

• Anthrax
• Bubonic plague
• Tuberculosis, primary
• Tularaemia
• Whooping cough

Fungal causes:

• Coccidioidomycosis
• Histoplasmosis
• Sporotrichosis

Parasitic causes:

• Toxoplasmosis
• Tropical pulmonary eosinophilia

Tags: Anthrax - Bubonic Plague - Coccidioidomycosis - EBV - Chlamydia psittaci - Histoplasmosis - Q-fever - Rubella - Sporotrichosis - Toxoplasmosis - Tuberculosis - Tularaemia - Varicella - Whooping Cough
Posted by Medicalchemy
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Solitary Pulmonary Nodule Infectious Causes

Listed Infectious Causes (A to Z):

• A - Actinomycosis, Aspergillosis
• B - Blastomycosis
• C - Coccidioidomycosis, Cryptococcosis
• D - Dirofilaria
• E - Echinococcosis
• H - Histoplasmosis
• L - Legionella, Lung abscess,
• M - Mycetomas
• N - Nocardia
• P - Pneumocystis, Pseudallescheriasis
• S - Septic embolism, Spherical pneumonia, Sporotrichosis
• T - Tuberculosis (atypical or typical)

Image: Solitary Pulmonary Nodule on CT Scan (Arrowed).

Image Source: by Lourens Willekes, Cherif Boutros & Michael A. Goldfarb on Wikipedia (cc)

Tags: Actinomycosis - Aspergillosis - Blastomycosis - Coccidioidomycosis - Cryptococcosis - CT Scan - Dirofilaria - Echinococcosis - Histoplasmosis - Legionella - Lung abscess - Mycetoma - Nocardia - Pneumocystis - Pseudallescheriasis - Pulmonary Nodule - Septic embolism - Sporotrichosis - Tuberculosis

Posted by Medicalchemy
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Upper Lobe Infiltrations or Fibrosis on Chest Xray

Aetiological Factors:

• Allergic alveolitis
• Ankylosing spondylitis
• Eosiniphilic granuloma
• Histoplasmosis
• Radiation pneumonitis
• Rheumatoid arthritis
• Rhodococcus equi
• Sarcoidosis
• Silicosis progressive massive fibrosis
• Sporotrichosis
• Talcosis
• Tuberculosis

Tags: Chest Xray - Pulmonary infiltrate - Pulmonary fibrosis - Tuberculosis - Upper Lobe

Posted by Medicalchemy
Medicalchemy Group: History of Medicine - Images - Mnemonics - Anaesthesiology - Anatomy - Biochemistry - Cardiology - Dermatology - Drugs - Endocrinology - Gastroenterology -Genetics - Geriatrics - Gynecology - Haematology - Immunology - Infection - Metabolic Medicine - Microbiology - Nephrology - Neuroscience - Nutrition - Obstetrics - Oncology - Ophthalmology - Orthopaedics - Otolaryngology - Palliative Care - Pathology - Pharmacology - Physiology - Psychiatry - Public Health - Respiratory - Surgery - Toxicology - Tropical Medicine - Urology - Vascular.