Granuloma annulare
Updates to Article Attributes
Granuloma annulare is a benign idiopathic inflammatory disorder of the dermis, characterised by formation of dermal papules in young children.
Clinical presentation
Granuloma annulare most commonly seen in kids between 2-12 years old and usually it occurs in exterminates. One typical location is pretibial when the lesion is subcutaneous. It has various clinical presentations:
- three cutaneous forms
- erythematous
- perforating
- generalised
- one subcutaneous form: presenting as soft tissue mass
Radiographic features
Plain radiograph
These have very little value. The only manifestation is non-specific increased density in the subcutaneous compartment without involvement of bone involvement or mineralisation.
Ultrasound
Shows ill-defined solid mass that is hypoechoic to surrounding fat. It excludes a vascular of cystic lesion.
MRI
-
T1:
fillill-defined subcutaneous mass, isointense to muscle -
T2: slightly hypointense signal intensity compared with fat,
maybut may also show heterogeneous hyperintenselesionsignal -
T1 C+: diffuse enhancement can be
seeseen
-<p><strong>Granuloma annulare</strong> is a benign idiopathic inflammatory disorder of the <a href="/articles/dermis">dermis</a>, characterised by formation of dermal <a href="/articles/papules">papules </a>in young children.</p><h4>Clinical presentation</h4><p>Granuloma annulare has various clinical presentations:</p><ul>- +<p><strong>Granuloma annulare</strong> is a benign idiopathic inflammatory disorder of the <a href="/articles/dermis">dermis</a>, characterised by formation of dermal <a href="/articles/papules">papules </a>in young children.</p><h4>Clinical presentation</h4><p>Granuloma annulare most commonly seen in kids between 2-12 years old and usually it occurs in exterminates. One typical location is pretibial when the lesion is subcutaneous. It has various clinical presentations:</p><ul>
-<strong>T1:</strong> fill-defined subcutaneous mass, isointense to muscle</li>- +<strong>T1:</strong> ill-defined subcutaneous mass, isointense to muscle</li>
-<strong>T2:</strong> slightly hypointense signal intensity compared with fat, may show heterogeneous hyperintense lesion</li>- +<strong>T2:</strong> slightly hypointense signal intensity compared with fat, but may also show heterogeneous hyperintense signal</li>
-<strong>T1 C+:</strong> diffuse enhancement can be see</li>- +<strong>T1 C+:</strong> diffuse enhancement can be seen</li>