21 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Nodular LCH: - Sarcoidosis ... Cystic LCH: - LAM ... central dot. - LIP #Clinical ... #Differential #Comparison
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
LCH: multiple round ... #Clinical #Radiology ... Cystic #Pattern #Comparison
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
histiocytosis (LCH ... #Clinical #Radiology ... Cystic #Pattern #Comparison
Diagnosis of Primary Amenorrhea
A diagnostic approach to primary amenorrhea. (FSH = follicle-stimulating hormone; LH = luteinizing
Diagnosis of Primary ... Amenorrhea A diagnostic ... follicle-stimulating hormone; LH ... #Diagnosis #PrimaryCare ... #Differential #Algorithm
Causes of Female and Male Infertility - Differential Diagnosis Algorithm
Causes of Female Infertility:
 • Uterus -
- Differential Diagnosis ... Algorithm Causes ... hypogonadism) Low FSH/LH ... problem) High FSH/LH ... #Algorithm #Causes
A diagnostic approach to secondary amenorrhea. (DHEA-S = dehydroepiandrosterone sulfate; FSH = follicle-stimulating hormone; LH =
A diagnostic approach ... follicle-stimulating hormone; LH ... #Diagnosis #PrimaryCare ... #Differential #Algorithm
Primary Amenorrhea Differential Diagnosis Framework

Workup:
 • β-HCG, TSH and PRL
 • Breast Tanner Staging
 • FSH,
Amenorrhea Differential Diagnosis ... Staging • FSH, LH ... #Differential #Diagnosis ... obgyn #gynecology #algorithm
Hypogonadism Differential Diagnosis Algorithm
 • Low testosterone, Normal or low LH, Normal or low FSH -
Algorithm • Low ... Normal or low LH ... testosterone, Normal LH ... testosterone, Normal LH ... testosterone, Elevated LH
RIMA dissection during cardiac catheterization

RIMA explosion - never inject if the waveform is clearly dampened. Surprisingly
the LIMA/RIMA ostia ... #Fluoroscopy #Clinical ... #LHC #CathLab
Histiocytosis - Langerhans cell histiocytosis (LCH), Erdheim-Chester disease (ECD), Rosai-Dorfman disease (RDD)
Comparison of Features by Age,
histiocytosis (LCH ... disease (RDD) Comparison ... Histiocytosis #diagnosis ... #comparison #table ... features #management #LCH