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Mediastinal Mass - Differential Diagnosis
Anterior Mediastinal Mass:
 • Thymus (Thymoma, carcinoma, hyperplasia, cyst)
 • Lymphoma
 •
Mediastinal Mass ... - Differential Diagnosis ... Anterior Mediastinal Mass ... Intrathoracic thyroid ... #Differential #Diagnosis
Causes of Mediastinal Mass - Differential Diagnosis Algorithm
Anterior Mediastinal Mass:
 • Thyroid
 • Thymoma
 • Teratoma
of Mediastinal Mass ... - Differential Diagnosis ... Anterior Mediastinal Mass ... : • Thyroid ... #Differential #Diagnosis
Neck Mass - Differential Diagnosis Framework
Inflammatory:
 • Viral (reactive): EBV, HIV
 • Bacterial: Staph/Strep, Tularemia, Brucella
Neck Mass - Differential ... Diagnosis Framework ... Neoplasm: • Primary: Thyroid ... BCM_InternalMed #Neck #Mass ... #Differential #Diagnosis
Neck Mass - Differential Diagnosis Algorithm
Congenital Neck Mass:
 • Thyroglossal Duct Cyst
 • Branchial Cleft Anomalies
Neck Mass - Differential ... Diagnosis Algorithm ... Congenital Neck Mass ... • Lymphoma • Thyroid ... Carcinoma • Thyroid
Mediastinal Widening - Differential Diagnosis

 • Vascular: Aortic dissection, Aortic anourysm, Enlarged pulmonary arteries, Venous or
- Differential Diagnosis ... Atelectasis, Nodule / mass ... mediastinal (Thymoma, Thyroid ... #Differential #Diagnosis
Important Causes of Diplopia 
TIER 1-CRITICAL
Basilar artery thrombosis, Botulism, Basilar meningitis, Aneurysmn
TIER 2-EMERGENT:
Vertebral dissection, Myasthenia gravis,
Multiple sclerosis, Thyroid ... , Orbital apex mass ... #differential #diagnosis
Mediastinal Mass - Differential Diagnosis Framework

Anterior Mediastinal Mass - 5T’s
 • Thymic neoplasm
 • Teratoma (or
Mediastinal Mass ... - Differential Diagnosis ... cell tumor) • Thyroid ... - Thyroid mass ... #Differential #Diagnosis
The table on the left is the overall table for mediastinal masses.
In the next paragraphs we
- Thymomas - Thyroid ... masses #Diagnosis ... #Mediastinal #Mass
Differential Diagnosis and Workup for Male Gynecomastia:
Medications: spironolactone, ketoconazole, finasteride, alcohol, opiates, INH, steroids (testosterone, estrogen),
Differential Diagnosis ... decreased muscle mass ... Renal disease Thyroid ... #Differential #Diagnosis
Thyroid Goiter in Severe Hypothyroidism on Neck Physical Examination

TSH 124. Hashimoto’s, lost to care and thyroid
Thyroid Goiter in ... lost to care and thyroid ... Note the neck mass ... indicating likely thyroid ... #Thyroid #Mass #