46 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
perilymphatic distribution ... Metastases: random distribution ... cysts, evenly distribution ... #Differential #Comparison ... #Table #RadiologyAssistant
Stevens-Johnson syndrome (SJS), Toxic epidermal necrolysis (TEN) and Overlap

 SJS-TEN overlap and TEN - Surface Epidermal
Epidermal #Necrolysis #Comparison ... #Diagnosis #Dermatology ... #Distribution #
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
supplying the lung bases ... non-perfused vessels and causes ... apex and the lung bases ... In these cases comparison ... #RadiologyAssistant
The distribution of nodules shown on HRCT is the most important factor in making an accurate
The distribution ... In most cases small ... Random distribution ... Perilymphatic #Comparison ... #Diagram #RadiologyAssistant
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
perilymphatic distribution ... Nodular #Pattern #Comparison ... #Table #RadiologyAssistant
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
perilymphatic distribution ... Nodular #Pattern #Comparison ... #Table #RadiologyAssistant
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
Perilymphatic distribution ... lymphangitic spread of carcinoma ... #Differential #RadiologyAssistant
Trunk / Sacral Skin Ulcers - Differential Diagnosis Algorithm
Neoplastic
 • Squamous cell carcinoma
 • Basal cell
Squamous cell carcinoma ... • Basal cell carcinoma ... Sacral #SkinRash #dermatology ... Diagnosis #Algorithm #causes
Head and Neck Skin Ulcers - Differential Diagnosis Algorithm
Neoplastic:
 • Squamous cell carcinoma
 • Basal cell
Squamous cell carcinoma ... • Basal cell carcinoma ... ulcerative #skinrash #dermatology ... Diagnosis #Algorithm #causes
Contact Dermatitis: Inflammatory response to topical irritant. Note the linear distribution 
across the knuckles, caused by
Note the linear distribution ... the knuckles, caused ... Images #Clinical #Dermatology