The problem shown in the image is most likely due to which factor?

• A. Embedding
• B. Improper embedding
• C. Forceps metastasis
• D. At embedding

Answer: (B)

Embedding quality determines how well tissue is preserved and cut cleanly in the paraffin block. When embedding is done improperly, tissue may not be fully infiltrated by paraffin or may be placed incorrectly in the mold. This creates artifacts in the section—such as voids, folds, tearing, or uneven thickness—that distort tissue architecture and mimic pathology or obscure details. The image likely shows signs consistent with poor infiltration and/or poor orientation from the embedding step, which is why improper embedding best explains the problem. The other phrases are vague or nonstandard descriptions of the issue, and the distractors don’t point to an embedding-related artifact.