MSK

Question 1

Blunt trauma to the globe

Answer 1

• Can cause orbital blowout fx

- most commonly involve the medial or inferior orbital walls due to thin bone bordering the ethmoid and maxillary sinus

Question 2

Most common metastatic tumors to the brain

Answer 2

Lung CA
Renal CA
Melanoma

Question 3

Melanoma

Answer 3

ABCDEs of melanoma
Focal neurotically deficit suggestive of malignant melanoma metastatic to CNS
Melanocytes are of neural crest origin

Question 4

Mitochondrial diseases

Answer 4

“Red ragged” muscle fibers are seen. Muscle fibers have the appearance bc abnormal mitochondira accumulate under the sarcolemma. Mitochondrial disease show maternal inheritance
-blotchy red muscle fibers on Gomori stain are characteristic of mitochondrial myopathies

Question 5

Glomangioma

Answer 5

A benign tumor that can produce very tender, small, red bluish lesion under the nail bed. Originates from modified smooth muscle that controls the thermoregulatory functions of the dermal glomus bodies

Question 6

Para aortic lymph nodes

Answer 6

Receive lymphatic drainage from the testis due to their intra abdominal origin

Question 7

Superficial inguinal lymph nodes

Answer 7

Lymphatic drainage from the scrotum; drain nearly all cutaneous lymph from the umbilicus to the feet, including the external genitalia and anus