L4 - Gross Descriptions and Diagnoses

Question 1

Which of the following is NOT a feature of description ?

A. Consistency

B. Surface

C. Gender

D. Shape

Answer 1

C. Gender

Question 2

Name the features of a description (Hint: No SLo DiSCo CoMas)

Answer 2

•Number •Size •Location •Distribution •Shape •Color •Consistency •Margins/Surface

Question 3

__________ is a way to state the pattern and extent of lesions present.

Answer 3

Distribution

Question 4

Which type of distribution means “throughout a large portion of the effected tissue” ? A. Focal B. Multifocal C. Diffuse

Answer 4

C. Diffuse

Question 5

Which type of distribution means “one isolated lesion” ? A. Focal B. Multifocal C. Diffuse

Answer 5

A. Focal

Question 6

Which type of distribution means “numerous similar lesions that can be of variable size” ? A. Focal B. Multifocal C. Diffuse

Answer 6

B. Multifocal

Question 7

______ is a type of ‘multifocal’ where there are numerous pin-point foci

Answer 7

Miliary

Question 8

Name this type of lesion distribution:

Answer 8

Multifocal-coalescing

Note: numerous raised nodules that often appear in groups on the skin surface of the knees, elbows, and lower extremities. The nodules coalesce to form a large patch that appears to be a single lesion.

Question 9

Name this type of lesion distribution:

Answer 9

Locally extensive

Question 10

Name this type of lesion distribution:

Answer 10

Diffuse

Question 11

Name this type of lesion distribution:

Answer 11

Multifocal

Question 12

What can the distribution of a lesion tell a pathologist/ clinician ?

Answer 12

1. The route of spread of the disease 2. If symmetrical - the systemic/metabolic cause of the lesion

Question 13

An ascending lesion means ? A. Coming from the urine up B. Coming through the blood

Answer 13

A. Coming from the urine up

Question 14

A descending lesion means ? A. Coming from the urine up B. Coming through the blood

Answer 14

B. Coming through the blood

Question 15

What can a geometrically shaped lesion of an organ tell you? A. The lesion is following an anatomic structure (blood vessel, bronchiole, nerve etc…) B. Something has been added (edema, blood, inflammatory cells, neoplastic/hyperplastic cells) C. The lesion involves vasculature D. Something has been lost (necrosis) or the tissue has contracted (connective tissue)

Answer 15

C. The lesion involves vasculature Note: •Geometric (triangle, diamond, wedge, rhomboid, circles) – the lesion involves vasculature •Straight lines – the lesion is following an anatomic structure (blood vessel, bronchiole, nerve etc…) •Raised – something has been added (edema, blood, inflammatory cells, neoplastic/hyperplastic cells) •Depressed – something has been lost (necrosis) or the tissue has contracted (connective tissue)

Question 16

A translucent colored lesion is usually characteristic of what ? A. Hemorrhage B. Fibrin C. Mucous D. Bilirubin

Answer 16

C. Mucous Note: Hemorrhage -> Red color Fibrin -> White color Bilirubin -> Yellow color

Question 17

Melanin, fluke pigment, exogenous pigment (carbon), decomposition (hydrogen sulfide from digestion of blood by bacteria) are ALL characteristic of what color lesion ? A. Translucent B. Black C. Green D. Yellow

Answer 17

B. Black

Question 18

What is an infarct ?

Answer 18

A small localized area of dead tissue resulting from failure of blood supply.

Question 19

If the margin of the lesion is well demarcated what can it tell you? A. The lesion represents a different tissue (tumors) B. The process is gradually infiltrating into the normal tissue C. The lesion is poorly contained

Answer 19

A. The lesion represents a different tissue (tumors)

Question 20

Give a MDx for this picture:

Answer 20

MDx: Heart – pericarditis, suppurative, diffuse, chronic, severe

Cause – various bacteria

Disease name: Hardware disease

Question 21

What is the Etiological diagnosis of this image/lesion ?

Answer 21

EtDx – poxviral dermatitis