|Year : 2014 | Volume
| Issue : 6 | Page : 109-112
Angiokeratoma circumscriptum naeviforme with soft tissue hypertrophy and deep venous malformation: A variant of Klippel-Trenaunay syndrome?
Vaishali Wankhade1, Rajesh Singh1, Venus Sadhwani1, Purnima Kodate2, Amit Disawal3
1 Department of Dermatology, Government Medical College and Hospital, Nagpur, Maharashtra, India
2 Department of Pathology, Government Medical College and Hospital, Nagpur, Maharashtra, India
3 Department of Radiology, Government Medical College and Hospital, Nagpur, Maharashtra, India
|Date of Web Publication||5-Dec-2014|
Dr. Vaishali Wankhade
Department of Dermatology, Government Medical College and Hospital, Nagpur, Maharashtra, India
Source of Support: None, Conflict of Interest: None
| Abstract|| |
Klippel-Trenaunay syndrome (KTS) is a cutaneous capillary malformation on a limb in association with soft tissue swelling with or without bony hypertrophy and atypical varicosity. The capillary malformation associated with KTS is port wine stain. Angiokeratoma circumscriptum naeviforme (ACN) is a congenital variant of angiokeratoma commonly present on the lower limb as a hyperkeratotic plaque. ACN is rarely associated with KTS. We report a case of ACN with soft tissue hypertrophy and deep venous malformation (possibly a variant of Klippel-Trenaunay) in a 4-year-old male child.
Keywords: Angiokeratoma circumscriptum neviforme, Klippel-Trenaunay syndrome, deep venous malformation
|How to cite this article:|
Wankhade V, Singh R, Sadhwani V, Kodate P, Disawal A. Angiokeratoma circumscriptum naeviforme with soft tissue hypertrophy and deep venous malformation: A variant of Klippel-Trenaunay syndrome?. Indian Dermatol Online J 2014;5, Suppl S2:109-12
|How to cite this URL:|
Wankhade V, Singh R, Sadhwani V, Kodate P, Disawal A. Angiokeratoma circumscriptum naeviforme with soft tissue hypertrophy and deep venous malformation: A variant of Klippel-Trenaunay syndrome?. Indian Dermatol Online J [serial online] 2014 [cited 2019 Nov 22];5, Suppl S2:109-12. Available from: http://www.idoj.in/text.asp?2014/5/6/109/146180
| Introduction|| |
Klippel-Trenaunay syndrome (KTS) is characterized by the triad of port wine stain, venous and lymphatic malformation, and soft tissue hypertrophy of the affected extremity. Depending on the type of vessel involved and its flow characteristics KTS is classified as a slow flow complex combined capillary venous or capillary venous lymphatic malformation.  Angiokeratomas are cutaneous vascular hyperkeratotic lesions. The current classification of angiokeratomas distinguishes between localized and systemic forms. The localized variants are solitary angiokeratoma, Fordyce's angiokeratoma, angiokeratoma of Mibelli and angiokeratoma circumscriptum naeviforme (ACN).  The systemic form, angiokeratoma corporis diffusum, is usually associated with an inborn error of metabolism. Among all the types, ACN is the rarer and the only congenital variant of angiokeratoma.  The lesions of ACN are bluish red, well defined and are classically seen on the lower extremity in a unilateral distribution.  ACN has been rarely reported in association with KTS. ,
| Case Report|| |
A 4-year-old male child presented with complaints of a linear eruption on his right leg since birth. His parents gave history of pain and several episodes of bleeding from the lesion after trauma. There were no symptoms suggestive of bleeding from other sites. On examination, there were multiple hyperkeratotic discrete and closely aggregated papules and plaques of varying size on an erythematous base arranged linearly along the lateral aspect of the right thigh extending up to the knee joint [Figure 1] and [Figure 2]. Confluent verrucous plaques were present at the knee joint. The lesions did not blanch on diascopy. There was no bruit over the skin lesions. The circumference of right thigh was greater than that of the left. Prominent superficial veins were seen on dorsum of right leg [Figure 3]. X-ray right thigh showed soft tissue hypertrophy [Figure 4]. Right lower limb arteriovenous (AV) Doppler revealed a hypoplastic right lower limb deep venous system with compensatory dilatation of the superficial venous system. Magnetic resonance imaging (MRI) angiography of both lower limbs was performed. It revealed a normal arterial system on either side. The superficial femoral vein, popliteal vein, anterior tibial and posterior tibial vein on right side were hypoplastic along with thickening of subcutaneous tissue and associated dilatation and malformation of the superficial venous system [Figure 5] and [Figure 6]. The deep venous system of the left lower limb was normal in caliber. Histological examination revealed numerous dilated thin walled, congested capillaries mainly in the papillary dermis and very few in reticular dermis. Overlying epidermis showed compact hyperkeratosis, irregular acanthosis with elongated rete ridges consistent with diagnosis of angiokeratoma [Figure 7] and [Figure 8]. On the basis of clinical, histological and radiological findings, a diagnosis of KTS with ACN was made.
|Figure 5: Magnetic resonance imaging angiography showing dilated superficial veins on the right side|
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|Figure 7: Hyperkeratotic epidermis with congested capillaries in papillary dermis with normal deep dermis and subcutaneous tissue|
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|Figure 8: Hyperkeratotic epidermis with dilated congested capillaries in papillary dermis|
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| Discussion|| |
In 1900, two French physicians Maurice Klippel and Paul Trenaunay described two patients with hemangiomatous lesions of the skin with associated bone and soft tissue hypertrophy and coined the term naevus variqueux osteohypertrophique.  In 1907, Parkes Weber reported the association of KTS with AV fistula and called it hemangiectatic hypertrophy.  In 1965, Lindenauer proposed that the syndrome originally described by Klippel and Trenaunay without AV malformation be considered as a specific entity the KTS and the one associated with AV fistula be designated as Parkes Weber syndrome.  In a study of 252 patients with KTS at the Mayo Clinic, 63% had all three features of KTS. Port wine stains were found in 98% of patients, venous malformations in 72% and limb hypertrophy in 67% patients.  Two of the three features were noted in 37% of patients. The port wine stain is apparent at birth and usually involves the affected limb, often stopping at the midline with a sharp linear border.  The nevus may involve the whole of one side of the body and may sometimes be present on the contralateral limb.  A forme fruste presentation of KTS without the cutaneous nevus has also been described.  Varicose veins may be obvious at birth, but frequently become evident after walking starts.  The venous abnormalities of the deep venous system that occur in KTS include aneurysmal dilatation, duplication, aplasia, and hypoplasia.  Popliteal and femoral vein are the most commonly affected veins. Patients with at least two of the three cardinal features have been classified as having an incomplete form of KTS. 
Fabry described the first case of angiokeratoma circumscriptum in 1915.  The term ACN was proposed by Dammert.  It is the only congenital variant and is more common in women and is usually unassociated with systemic disease.  The lesions are classically seen on lower extremity in a unilateral distribution. The lesions are well defined confluent keratotic papules that become verrucous with age. They bleed on trauma and spontaneous resolution does not occur. The histopathological finding is same irrespective of the type of angiokeratoma and consist of numerous thin walled congested capillaries mainly in the papillary dermis underlying an epidermis that shows variable degree of acanthosis with elongation of rete ridges and hyperkeratosis.  Unusual variants of ACN described in literature are along the lines of Blaschko,  and a systematized band like pattern.  Rare associations are KTS and Cobbs syndrome. Verrucous hemangioma clinically resembles angiokeratoma but they can be differentiated histopathologically as the former involves the dermis and the subcutaneous fat and the latter involves only the dermis.  Our case showed typical clinical features of ACN, which was confirmed by histopathologic examination. The absence of involvement of the deep dermis differentiated it from verrucous hemangioma. Associated soft tissue hypertrophy and deep venous malformation on MRI are classical features of KTS. There are very few case reports of association of KTS with ACN in world literature. , Schimpf and Wehberg in their study have reported three cases of ACN on the lower limb associated with soft tissue hypertrophy.  Bone hypertrophy was present in two cases, varicose veins in one case and only one case had associated port wine stain on the back. The case reported by Odeh had ACN of the right leg associated with soft tissue hypertrophy and bone hypoplasia of the right half of pelvis.  Varicose veins and portwine stain were absent. Somasundaram et al. described a case of angiokeratoma associated with soft tissue hypertrophy. They preferred the term hemangiectatic hypertrophy as there was no associated bony and venous abnormalities of KTS.  To the best of our knowledge, this is the first case report of this rare association from India.
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[Figure 1], [Figure 2], [Figure 3], [Figure 4], [Figure 5], [Figure 6], [Figure 7], [Figure 8]