The document provides descriptions and images of various diseases and pathological findings, including:
- Amyloid deposits in the thyroid gland associated with amyloid disease.
- The picket fence appearance of basal cell carcinoma with palisading basal cells at the tumor border.
- Keratin pearls seen in squamous cell carcinoma indicating keratinization.
- Tumor emboli in the lung showing hematogenous spread of malignant cells in blood vessels.
- Dermoid cyst in the ovary containing sebaceous glands, hair follicles and other tissues not normally found in the ovary.
3. Disease : Basal cell CA Characteristic appearance : Picket fence appearance Cells at pointer : Palisade of Basal cells
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6. Epidermis that invaded the dermis.. Squamous cells arranged into lobules Disease : Squamous cell CA Keratinization in the centers .. Known as keratin pearls
7. Landmark : normal alveoli Disease : tumor emboli, lungShows hematogenous spread.. The malignant cells will be found w/I the BV. Blood vessel Malignant cells occluding the BV
9. Hair follicle Sebaceous gland Dermoid cyst , ovaryThere’s ectodermal differentiation due to presence of totipotential cell thus presenting with sebaceous gland, hair follicles, etc.See stuff that are not suppose to be seen in ovary!
11. Papillary CA, thyroid Lymphoidspread Psammoma’s body Normal thyroid follicle The thyroid follicles are surrounded by malignant cells … they are arranged into papillary pattern.
13. Thyroid follicle Infiltration of Leukocytes Appears like Lymph node But actually , it’s a thyroid gland with autoimmune disease known as Hashimoto’s thyroiditis
