Musculoskeletal Key

Fig. 5.1 Malar erythema from rosacea with characteristic papules and pustules Lupus erythematosus: The malar rash is classically associated with acute cutaneous lupus erythematosus (ACLE) or subacute cutaneous lupus erythematosus…

Fig. 14.1 Image of a patient with typical thick and white scaling psoriatic plaques Other forms of psoriasis include guttate, inverse, seborrheic, erythrodermic, pustular and nail psoriasis. Guttate psoriasis is…

Fig. 15.1 Typical presentation of erythema nodosum with tender nodules on the shins Pyoderma gangrenosum (PG) is a rare, inflammatory disorder thought to be due to abnormal immune reactivity and/or…

Fig. 8.1 Aphthous ulcer on the lower lip shows a fibrinous base Fig. 8.2 Right leg image shows pyoderma gangrenosum with an undermined ulcer Reactive arthritis or Reiter’s syndrome (RS)…

Fig. 17.1 Reactive arthritis – comparison of psoriasis (a) and reactive arthritis syndrome (B, balanitis circinata) involving the glans penis. Note the highly characteristic coalescence of lesions in this case…

Fig. 18.1 Reactive arthritis – erosions on tongue (Reprinted from Wu IB, Schwartz RA. Reiter’s syndrome: The classic triad and more. J Am Acad Dermatol 2008;59:113–121. With permission from Elsevier)…

Fig. 4.1 Livedo reticularis of the bilateral lower extremities It is important to distinguish LR from livedo racemosa, a distinct entity characterized by a violaceous, irregular net-like pattern that is…

Fig. 25.1 Periorbital and inguinal distribution pattern of skin lesions of neonatal SCLE in a 2-month-old female baby (left). Single efflorescences appear as annular erythematous and scaly plaques (right). The…

Those not associated with a systemic illness    Photosensitive drug eruptions    Photoallergic contact dermatitis    Polymorphous light eruption and its variants    Solar urticaria Those that can be associated with a systemic illness…

Fig. 3.1 Erythema nodosum of limbs: symmetrical, erythematous, tender, rounded and oval nodules The peak incidence is closed to the 20–30 years of age and the sex ratio favours females…