22 results
Ulcerative Blastomycosis Skin Lesion
57 asymptomatic M from Indiana nonpruritic, painless, progressive skin lesion lower back x
Skin Lesion 57 ... heaped up borders); differential ... : basal cell ca, ... squamous cell ca ... #SkinRash #dermatology
Trunk / Sacral Skin Ulcers - Differential Diagnosis Algorithm
Neoplastic
 • Squamous cell carcinoma
 • Basal cell
Trunk / Sacral Skin ... Ulcers - Differential ... Neoplastic • Squamous ... Trunk #Sacral #SkinRash ... #dermatology #Differential
Head and Neck Skin Ulcers - Differential Diagnosis Algorithm
Neoplastic:
 • Squamous cell carcinoma
 • Basal cell
Head and Neck Skin ... Ulcers - Differential ... Neoplastic: • Squamous ... cell carcinoma ... Ulcers #ulcerative #skinrash
Skin Ulcers of the Lower Legs / Feet - Differential Diagnosis Algorithm
Physical:
• Pressure
• Trauma
• Radiation
Vascular:
• Arterial
Skin Ulcers of the ... Legs / Feet - Differential ... Neoplastic: • Squamous ... cell carcinoma ... Ulcers #ulcerative #skinrash
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
Skin Ulcers by Etiology ... - Differential ... Neoplastic: • Squamous ... Ulcers #ulcerative #skinrash ... #dermatology #Differential
Cervical Lymphadenopathy - Lymph Node Drainage
Preauricular nodes - Drain scalp, skin
 • Differential diagnosis: Scalp infections,
- Drain scalp, skin ... head and neck squamous ... cell carcinomas ... Malignancies: Squamous ... cell carcinoma
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Negative Abscess - Differential ... Toxoplasmosis, Entamoeba Skin ... Nocardia - No Cell ... Kidneys: - No Cell ... #Diagnosis #InfectiousDiseases
CENTRAL FACIAL / NASAL LESIONS
Bacteria:
 • Leprosy (saddle nose deformity)
 • Tuberculosis (lupus vulgaris)l
 • Endemic
infection • Blastomycosis ... Malignancy: • NK cell ... infections #diagnosis #infectiousdiseases ... #differential
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Polyangiitis (GPA) Skin ... vasculitis Skin ... reticularis Differential ... syndrome • Giant cell ... histoplasmosis, blastomycosis
Blastomycosis Summary

Pathogen: 
 • Dimorphic fungus - Blastomyces dermatitidis or Blastomyces gilchristii.
 • The fungus lives
Blastomycosis Summary ... Lesion may mimic squamous ... cell carcinoma ... #diagnosis #management ... #treatment #infectiousdiseases