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1
Q

Diagnosis

A

Small Plaque Parapsoriasis

2
Q

Primary Morphology and MC location in Small Plaque Parapsoriasis?

A

Hyperpigmented or yellowish red scaling patches, round to oval with sharply defined borders, 1-5cm

Trunk

{MC gender = Male}

3
Q

Digitate SPP morphology?

A

yellowish tan, elongated, fingerprint-like along cleavage lines on flank

4
Q

Early stage small pages of cutaneous T cell lymphoma morphology seen in what dz?

A

large erythematous to purplish red lesions and poikiloderma

seen in SPP

5
Q

What dz is SPP associated with?

A

liposarcoma

SPP –> resolves once tumor is removed

6
Q

Histopath of SPP?

A

type of spongiotic dermatitis

infiltrate in superficial dermis of lymphocytes

7
Q

How do you treat SPP?

A

may be refractory to steroids alone!

phototherapy alone or in combo with steroids

{UVB, NBUVB, natural sunlight +/- steroids}

8
Q

Other information about SPP?

A
  1. Rarely progresses to mycosis fungoides
  2. hypOpigmented varient may progress to hypOpigmented MF
  3. untreated rarely progresses to lymphoma
9
Q

Diagnosis?

A

Confluent and Reticulated Papillomatosis

10
Q

Primary morphology & location of CARP?

A

Intermammary & Upper lateral trunk

Slightly scaly macules that spread

White pts: skin colored, faintly red, hyperpigmented

Pigmented pts: hyperpigmented or nonpigmented with fine white scale

11
Q

CARP symptoms and associated dz?

A

severe itching or asymptomatic

hypothyroidism

12
Q

What is pseudoatrophoderma colli?

A
  1. Papillomatous, pigmented atrophic glossy lesions with delicate wrinkling
  2. assoc condition with CARP
  3. occurs on neck
13
Q

CARP treatment?

A

Minocycline BID x 6 wks

14
Q

Other treatments for CARP?

A
  1. oral fusidic acid
  2. clarithromycin, erythromycin, azithromycin
  3. amoxicillin
  4. topical mupirocin
  5. topical/oral retinoids alone or combined c topical lactic acid, urea, alcohol
  6. if assoc c PCOS = birth control pills
15
Q

Diagnosis?

A

Pityriasis Rosea

16
Q

Diagnosis

A

Palmoplantar keratoderma

type - Keratoderma climactericum

17
Q

Diagnosis?

A

Pityriasis Rubra Pilaris

18
Q
A
19
Q

Diagnosis?

A

Pityriasis Rubra Pilaris

  1. Gooseflesh
  2. Classic juvenile type = limited plaques on extensor surfaces with adjacent ‘nutmeg-grater papules’
20
Q

Diagnosis?

A

Pityriasis Rubra Pilaris

21
Q

What is the morphology of acrokeratoelastoidosis?

A
  1. Location : dorsal hands, knuckles, lateral margins of palms and soles
  2. Morph: small, round, firms papules
  3. translucent to erythematous papules at margins of the palms
22
Q

What age does acrokeratoelastoidosis affect?

A

early childhood/adolescent in inherited cases and progress slowly

Sporatic or autosomal dominant

23
Q

Acrokeratoelastosis is typically asymptomatic but can require a workup of __?

A

dermal elastorrhexis

*NO alteration of collagen or elastin

24
Q

Morphology for collagenous and elastotic marginal plaques of hands?

A

slowly progressive lesions at the margins of the palms

25
Q

Histopath for collagenous and elastotic marginal plaques of hands

A

thick collagen bundles admixed with elastic fibers and amorphous basiphilic elastotic material

*altered collagen & elastin

26
Q

Morphology of Focal Acral Hyperkeratosis?

A

crateriform keratotic papules and plaques along the borders of hands and feet

marginal hyperkeratotic papules often with a central dell

on both hands & fingers

27
Q

Who does Focal Acral Hyperkeratosis affect?

A

Autosomal dominant & sporatic forms

MC in AA

28
Q

What is important to know about Focal Acral Hyperkeratosis?

A
  1. There is NO alteration in collagen or elastic on biopsy
  2. differs from [Acrokeratoelastosis] and [Collagenous and Elastotic Marginal Plaques of Hands] bc it lacks above mentioned underlying dermal changes
29
Q

Who and where does Mal de Meleda affect?

A
  1. affects individuals from island of Meleda
    - rare, autosomal recessive
  2. NOT confined to palms - commonly found on extensor surfaces of arms
30
Q

What lab findings are associated with Mal de Meleda?

A
  1. mapped to - Chromosome 8q
  2. mutations in - ARS component B gene
  3. mutations in - SLURP-1 gene
31
Q

What is Nagashima- type Keratosis?

A
  1. nonprogressive
  2. autosomal recessive palmoplantar kd
  3. resembles [mal de meleda]