Skin manifestations and submacroscopical features of acromegaly: A case-control study using dermoscopy and high-frequency ultrasound
Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI)(2023)
Abstract
BackgroundAlthough the cutaneous involvement of acromegaly has been recognized, the submacroscopical skin changes and the extent of skin thickening of patients remain unclear. ObjectivesThis study aimed at investigating the clinical cutaneous manifestations, dermoscopic features, and skin thickness revealed by high-frequency ultrasound (HFUS) of acromegalic patients. MethodsA case-control observational study was conducted. Patients with acromegaly and controls were prospectively included and received thorough cutaneous examinations to compare the macroscopical and dermoscopic features. The skin thickness measured by HFUS and its correlation with clinical data were also assessed. ResultsThirty-seven and 26 patients from acromegalic and control group were included, respectively. Clinical skin manifestations were recorded in detail. Under dermoscopy, red structureless area (91.9% vs. 65.4%, p = 0.021), perifollicular orange halo (78.4% vs. 26.9%, p = 0.005), and follicular plug (70.3% vs. 3.9%, p = 0.001) in the facial area, and perifollicular pigmentation (91.9% vs. 23.1%), broom-head hairs (83.8% vs. 3.9%), honeycomb-like pigmentation (97.3% vs. 38.46%), widened dermatoglyphics (81.1% vs. 3.9%) at the extremities (p < 0.001) were more prevalent in acromegaly. The mean skin thickness was 4.10 +/- 0.48 mm for acromegaly, and 3.55 +/- 0.52 mm for controls (p < 0.001) but no correlation with disease duration, adenoma size, and hormone level was found in acromegaly. ConclusionsSubmacroscopical skin changes under dermoscopy and skin thickness increase assessed by HFUS can provide clinicians with subtle evidences for early detection of acromegaly and objective parameters for accurate assessment of its skin involvement.
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Key words
acromegaly,dermoscopy,growth hormone,high-frequency ultrasound,insulin-like growth factor-1,skin manifestations
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