PMC5894031_01
Contrast-enhanced CT of the chest demonstrates features of Poland syndrome: asymmetrically reduced subcutaneous fat layer, absence of the pectoralis major (mj) and minor (mn) muscles in the left chest wall, (thick arrow) and minimal fat stranding (thin arrow) in the right axilla and right lateral chest wall.
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CT of the chest demonstrated asymmetric reduction of the subcutaneous fat incisions and drainage of the recurrent right groin HS (Figure 1).
US of the chest demonstrates a complex collection in (thick arrow) the subcutaneous tissue of the right axilla/chest wall extending to pectoralis muscles (mj) (arrow).
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US of the chest demonstrated a complex collection in the subcutaneous tissue of the right axilla/chest wall that was extending to the pectoralis muscles (Figure 2).
CT of the abdomen and pelvis demonstrates features of hidradenitis suppurativa: (A) axial image demonstrates a thick-walled, low-attenuation collection in the subcutaneous tissues of the right penile base, with thickening of the overlying skin; (B) coronal image demonstrates abnormally enhancing soft tissue infiltration in the subcutaneous fat of the right penile base (arrow), reactive hyperemia on the left penile base, and bilateral inguinal lymph nodes.
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Prior abdominal and pelvic CT of the patient demonstrated persistent, thickwalled, low-attenuation collection in the subcutaneous tissues of the right penile base, with abnormally enhancing soft tissue infiltration in the adjacent fat and overlying skin thickening (Figure 3).
Contrast-enhanced CT of the pelvis demonstrates hypoplastic left gluteal muscles (compared to the right side). Note that the difference between the left (1) and right (2) gluteus maximus (gmx) muscles is obvious, whereas the differences between gluteus medius (gmd) and gluteus minimus (gmn) muscles are subtle.
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Hypoplasia of the left gluteal maximus muscle was found incidentally (Figure 4).
CT of the pelvis and spine demonstrates features of seronegative spondyloarthropathy in a patient with hidradenitis suppurativa. CT of the pelvis - axial (A) and coronal (B) images demonstrate asymmetric (left>right) ankyloses in the sacroiliac joints. CT of the thoracic spine (C) and lumbar spine (D) demonstrates marginal syndesmophytes.
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Also, there were asymmetric ankyloses in the sacroiliac joints (Figure 5A, 5B) and multilevel non-marginal syndesmophytes (Figure 5C, 5D), findings that are associated with seronegative spondyloarthropathy.