Below given is a histopathological image of a blood vessel/lymph tumor.Regarding this pathology,which of the following options is an example of this pathology?
A. Port wine mark
B. Cystic Hygroma
C. Glomus Tumor
D. Pregnancy Tumor
Ans:A. Port wine mark
Image shows:Capillary haemangioma of the skin. There are capillaries lined by plump endothelial cells and containing blood. The intervening stroma consists of scant connective tissue.
- Clinically, they appear as small or large, flat or slightly elevated, red to purple, soft and lobulated lesions, varying in size from a few millimeters to a few centimeters in diameter.
- They may be present at birth or appear in early childhood.
- Strawberry birthmarks and ‘port-wine mark’ are some good examples.
- The common sites are the skin, subcutaneous tissue and mucous membranes of oral cavity and lips. Less common sites are internal visceral organs like liver, spleen and kidneys.
- Histologically, capillary haemangiomas are well-defined but unencapsulated lobules.
- These lobules are composed of capillary-sized, thin-walled, blood-filled vessels.
- These vessels are lined by single layer of plump endothelial cells surrounded by a layer of pericytes.
- The vessels are separated by some connective tissue stroma.
- Many of the capillary haemangiomas regress spontaneously within a few years.