Pityriasis Rosea
Figure 9.1 Pityriasis rosea. Numerous erythematous to violaceous and hyperpigmented ovoid scaly papules on the trunk Figure 9.2 Pityriasis rosea. Close up. Erythematous to violaceous and hyperpigmented ovoid papules on…
Lichen Planus
Figure 10.1 Hypertrophic lichen planus. Scattered hypertrophic, flat topped, violaceous plaques were noted on the bilateral anterior lower legs Figure 10.2 Hypertrophic lichen planus – close up. Scattered hypertrophic, flat…
Acne Keloidalis
Figure 4.1 Acne keloidalis. Hyperpigmented follicular papules and pustules, along with hyperpigmented firm keloidal nodules, are present on the occipital scalp with associated areas of patchy alopecia Figure 4.2 Acne…
Progressive Macular Hypomelanosis
Figure 18.1 Non-scaly hypopigmented macules and patches on the back of a woman Figure 18.2 Non-scaly hypopigmented macules and patches on the left flank and back of a woman Physical…
Tinea Capitis
Figure 12.1 Tinea capitis. A 2 × 3 cm oval patch of alopecia with short hair ends and black dots Clinical Differential Diagnosis The physical examination and clinical history is…
Hidradenitis Suppurativa
Figure 6.1 Hidradenitis suppurativa. Tender erythematous nodules and sinus tracts with pustular drainage along the axilla The pathogenesis of hidradenitis suppurativa involves an interplay of genetics, hormones, infection, and social,…
Pityriasis Alba
Figure 17.1 Ill-defined, hypopigmented slightly scaly patches on the right cheek Clinical Differential Diagnosis The findings were thought to be most consistent with pityriasis alba. The differential diagnosis for pityriasis…
Dissecting Cellulitis of the Scalp
Figure 5.1 Dissecting cellulitis. Scattered erythematous papules and pustules are noted on the vertex with alopecia and tufted hairs Clinical Differential Diagnosis The patient’s presentation is most consistent with dissecting…
