Q1. Moh's microsurgery is usually not done for
a) Melanoma
b) Basal cell carcinoma
c) Squamous cell carcinoma
d) Merkel cell carcinoma
Answer (Q4)
Q2) True about Marjolin's ulcer
a) lymphatic spread is common
b) They are painful
c) Aggressive and fast growing tumors
d) Squamous cell carcinoma is the most common type
Ans
2) d. squamous cell carcinoma
When a SCC or BCC occurs in a long standing scar, it is called marjolin's ulcer.
Marjolin's type of ulcer is a malignant change that can occur in any long standing ulcer (ie venous ulcer)
Scar tissue is devoid of lymphatics, so no lymphatic spread. Lymphatic spread can still occur when it invades normal tissue. also nerve endings are not in scar tissue, so pain is a late feature
They are slow growing tumors, and squamous cell carcinoma is the most common type. Slow growth is again due to avascular characterstic