A Lymph Node Biopsy from a Young Boy with X-Linked

question 18

Multiple Choice

A lymph node biopsy from a young boy with X-linked agammaglobulinemia is expected to show which of the following histologic features?

• A)Marked perivascular lymphocytic infiltrate
• B)Abundant polymorphonuclear inflammation
• C)Reduced follicles and germinal centers
• D)Nearly absent parafollicular cortical regions
• E)Enlarged follicles

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Definitions:

Unicellular

Referring to organisms made up of a single cell, capable of performing all necessary life functions within that solitary cell.

Heterosporous

Refers to plants that produce two different types of spores, male and female, leading to separate male and female gametophytes.

Spike Moss

A common name for plants in the genus Selaginella, which are small, non-flowering plants resembling moss but with vascular tissue.

Reduced Megaphylls

Refers to leaves with a complex vascular structure that have been minimized in size or complexity over evolutionary time, often observed in plants adapted to arid environments.