27 results
A 27-year-old man with a 2-year history of recurrent, painful skin lesions. A diagnosis of hidradenitis
A diagnosis of hidradenitis ... #Clinical #Derm ... #IM #Hidradenitis ... #HidradenitisSuppurativa
Causes of Scrotal Mass - Differential Diagnosis Algorithm
Painful - Sudden Onset
 • Testicular Torsion
 • Torsion
Scrotal Mass - Differential ... otherwise • Germ ... Mixed • Non-germ ... Testicular #Urology #Differential
Causes of Ovarian Mass - Differential Diagnosis Algorithm
Hyperplastic:
 • Polycystic ovary
 • Endometrioid cyst
Functional:
 • Follicular
Ovarian Mass - Differential ... Mucinous cystadenoma Germ ... • Clear Cell Germ ... #Ovary #Mass #Differential
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Negative Abscess - Differential ... Sweet's Syndrome, hidradenitis ... Negative #Abscess #Differential
Gynecomastia - Differential Diagnosis Algorithm
No Testicular Mass on Ultrasound
 • Adrenal Neoplasm
 • Increased Extraglomerular Aromatase
Gynecomastia - Differential ... • Extragonadal Germ ... • Testicular Germ ... • Testicular Germ ... #Gynecomastia #Differential
Causes of SVC Syndrome - Differential Diagnosis Framework
 • Benign (15-40%): Thrombosis (aka catheter-associated), Goiter, Fibrosing
SVC Syndrome - Differential ... SCLC, NSCLC, NHL, Germ ... SVC #Syndrome #Differential
Mediastinal Widening - Differential Diagnosis

 • Vascular: Aortic dissection, Aortic anourysm, Enlarged pulmonary arteries, Venous or
Mediastinal Widening - Differential ... Thyroid, Lymphoma, Germ ... Mediastinal #Widening #Differential
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
the overlap in differential ... Sometimes the term ... Perilymphatic #Nodular #Differential
Pustular Skin Lesions - Differential Diagnosis Framework

What are pustules?
• Pustules < 5-10 mm + pus
• Material
Skin Lesions - Differential ... Hidradenitis suppurativa ... Skin #Lesions #Differential
The Dementia Umbrella

Dementia is an umbrella term that describes a collection of symptoms that are caused
is an umbrella term ... Dementia #Umbrella #Differential