13 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Causes of Knee Effusions ... - Differential ... Diagnosis Framework ... #differential # ... physicalexam
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
parallel to lines of skin ... palms/soles - Differential ... diagnosis: secondary ... rosea #clinical #dermatology ... #photo #PhysicalExam
Physiologic Skin Changes in Pregnancy - Differential Diagnosis Algorithm

Face
 • Melasma
Abdomen
 • Linea Nigra 
Hormone induced
in Pregnancy - Differential ... Diagnosis Algorithm ... Campbell de Morgan spot ... #dermatology #Differential ... #causes
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
during medical evaluation ... for secondary causes ... symptoms (eg, skin ... Disorders #Algorithm #Differential ... #diagnosis #hematology
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin ... Rash - Differential ... Diagnosis Algorithm ... scale on elbows & knees ... #causes
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Skin rash and malaise ... reddish brown spots ... resembling rashes caused ... Syphilis #Rash #Diagnosis ... #Clinical #Photo
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Rash - Differential ... cryoglobulins • Skin ... #Causes #dermatology ... #physicalexam
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Allopecia - Differential ... Diagnosis Framework ... Capitis - Skin ... texture at bald spots ... #Diagnosis #dermatology
Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)
Definition: 
 • Severe adverse drug reaction, characterized by
Edema in 70% of cases ... Criteria for Diagnosis ... Skin involvement ... Resolution > 15 ... days Differentials
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
Psoriasis - Elbows, knees ... honey-colored crusts ... ; pruritis #dermatology ... #rash #differential ... #diagnosis #skin