(P7) Skin pathology (Lab27) Flashcards
Identify
Molluscum contagiosum
Identify and Lable
Molluscum contagiosum
(circle) Scrab lesion-eosinophilic inclusion
(S2) Molluscum bodies (Poxyvirus) (eosinophilic inclusion cytoplasm-pink)-under/above epithelium
Note: Nuclei pushed to side
Identify
Seborrheic keratosis
Identify and Label
Seborrheic keratosis
(circled) Pseudo-horn cyst
(Blue stacked cells) Proliferation of Squamous Cells (Basal-like cells, hyperkeratosis, keratin-filled cycts on surface of tumor )
(red cicrcl) Horn-Cyst (fibroblast growth factor FGF-receprot)
(bottom red circl) proliferation of basolioid cell
Identify and Label
Keratoacanthoma
Squamous proliferation tuor mainly on
Hair-bearing skin (long lasting keloid)
(yellow) Tumor cell proliferation
Identify
Keratoacanthoma
Identify and label
Keratoacanthoma
Identify
Benign pilomatrixoma
Identify and label
Benign pilomatrixoma
(red circl) Intratumor caclification
Ghost cells
Shadow cells
Identify
Basal cell carcinoma
Identify and Label
Basal cell carcinoma
Identify
Pigmented compound nevus
Identify and Label
Pigmented compound nevus
(Blue circl) melanocyte- darker
(3sld) nest of melanocyte-surrounded by cleft
Identify
Malignant melanoma
Identify and label
Malignant melanoma
Ballonin cell
Identify
Keloid
Identify and Label
Keloid
Give an example of special staining helpful in detection of this lesion?
Keloid
-Van Gieson
Q. Malignant neoplasm that originates from the same tissue is?
Molluscum contagiosum
-Squamous cell carcinoma-
Q. Indicate the structure:
Large white/oval structure
Seborrheic keratosis
-Keratin filled cyst (horn cyst)-
Q. The pathological differential diagnosis of this lestion should include?
Keratoacanthoma
-Squamous cell carcinoma-
Q. This lesion typically occurs in the following age group?
Q. The lesion originates from what structure?
Q. List 2 benign skin tumors caused by viruses?
Q. Structure (Dark lower left) indicated on the slide is composed of?
Benign pilomatrixoma
- Children and young adults-
- Hair folicules-
- Verrucae, v. bulgaris, v. plantaris, v. plana, condyloma acuminatum, bowenoid papulosis, molluscum contagiousm-
- Calcium salt deposits-
Q. is this lestion malignant, semimalignant, or benign?
- Basal cell carcinoma*
- Semimalignant-
Q. This lesion typically unergoes slow evolution with time..name the lesion that represents the preceding and the next stage fo this evolution ?
- Basal cell carcinoma*
- -Marginal (junctinal) nevus-*
- -Dermal nevus-*
Q. The malignant counterpart of this lesion is called?
- Basal cell carcinoma*
- -Malignant melanoma-*
Q. The lesion direclty preceding this lesion is called?
- Pigmented compound nevus*
- Junctional nevus-
Q. Name 2 systems commonly used for the evaluation of local extent of this lesion?
- Malignant melanoma*
- -Clark (level of invasion)*
- -Breslow (tumor thickness)*
