So CD4 counts appear to be a useful tool in assessing risk, but other factors also contribute such as lung architecture. In a retrospective study of 74 patients with interstitial lung disease on corticosteroids, 7 patients developed PCP. The mean dose at time of diagnosis was prednisone 37mg with mean duration of 10 weeks. CD4 counts ranged from 59 to 836, with a mean of 370 . The authors argued that due to their underlying lung disease, the patients were at higher risk for PCP and became infected at higher CD4 counts than patients with other underlying diseases.
No. with Atopic Dermatitis
No. with Psoriasis vulgaris
Mean age (years)
43 (range 22-57)
Mean duration of treatment with Group III or IV topical steroids (years)
16 (range 6-25)
Localization of skin atrophy:
Clinical evaluation of severity of symptoms and signs of skin atrophy at baseline and at end of treatment.
Clinical parameters Mean severity at baseline Mean severity at end of treatment Decreased thickness of skin (range 2-3) Laxity (range 2-3) Purpura/Echymoses (range 1-3) Dryness Teleangiectasia (range 2-3) (range 1-2) Table 3.
Mean epidermal and dermal thickness, skin elasticity, erythemal and moisture indexes at baseline and after 8 months of treatment with Vivida of 40 patients with corticosteroid induced skin atrophy. Parameters Baseline 8 months Epidermal thickness (mm) (-) (-) Dermal thickness (mm) (-) (-) Elasticity Index 44 (39-53) 74 (65-78) Erythemal Index (-) (-) Moisture Index (11-37) (75-97)
Myopathies in systemic disease results from several different disease processes including endocrine, inflammatory, paraneoplastic, infectious, drug- and toxin-induced, critical illness myopathy, metabolic, collagen related,  and myopathies with other systemic disorders. Patients with systemic myopathies often present acutely or sub acutely. On the other hand, familial myopathies or dystrophies generally present in a chronic fashion with exceptions of metabolic myopathies where symptoms on occasion can be precipitated acutely. Most of the inflammatory myopathies can have a chance association with malignant lesions; the incidence appears to be specifically increased only in patients with dermatomyositis.