Pyoderma Gangrenosum

Q) Which of the following systemic disease is not associated with Pyoderma Gangrenosum ?

a) Rheumatoid arthritis

b) Inflammatory bowel disease

c) Non Hodgkin disease

d) Sjogern syndrome

Marjolin Ulcer

Q) 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


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 but have propensity for distal metastasis  and squamous cell carcinoma is the most common type. Slow growth is again due to avascular characteristic

Bailey 28th 625