Acquired lymphangiectasia is a rare complication of lymphatic obstruction. It has been described in association with malignancy and granulomatous diseases, namely orofacial granulomatosis, Crohn’s Disease (CD), and tuberculosis. It must be distinguished from a congenital malformation, generally referred to as lymphangioma.1 Herein we describe a case of acquired lymphangiectasia of the lip in a girl with CD, to our knowledge the first case of this association in pediatric age.

An 11-year-old girl was referred to our Dermatology Department due to persistent cheilitis and gingivitis since she was 4 years old. A therapeutic attempt with gingivoplasty had been performed at the age of 8 without success. No histology was available from the intervention. Later, at the age of 9, she had been diagnosed with Crohn’s disease after intestinal biopsy and was treated with azathioprine and infliximab. However, the cheilitis persisted.

Physical examination showed crusty lesions and flaccid blisters on both lips, as well as erythema with fissures on the gums and jugal mucosa (Fig. 1 A and B). A biopsy of the labial mucosa was performed.

Figure 1.

Clinical appearance of the girl’s lips (A and B).

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Histology showed epidermal hyperplasia without atypia with lichenoid pattern inflammation and lymphangiectasia (Fig. 2A). The presence of numerous podoplanin-positive subepithelial dilated vessels with a lymphatic appearance is noteworthy (Fig. 2B). Further investigations, including patch testing with the European standard and cosmetics series, and a facial MRI were normal. Topical corticosteroid treatment was prescribed with the intention of reducing the associated inflammation, followed by topical rapamycin 0.2% to decrease the lymphatic component, with no clear improvement after two months.

Figure 2.

(A) Labial mucosa fragment lined by squamous epithelium with marked acanthosis, spongiosis, hyperkeratosis and no keratinocyte atypia, with a dense lymphoplasmacytic infiltrate in the deeper areas without granulomas, with focal lichenoid change (Hematoxylin & eosin, ×100). (B) Positive immunostaining for podoplanin in subepithelial lymphatic vessels (Hematoxylin & eosin, ×100).

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Granulomatous cheilitis presents as orofacial inflammation secondary to non-necrotizing granulomas. It can present isolated or in the context of granulomatous systemic disease. In children, granulomatous cheilitis is more often associated with CD than in adults, being the first manifestation in 5%‒10% of cases of inflammatory bowel disease.2,3

Acquired lymphangiectasia in CD is thought to develop as a consequence of chronic granulomatous inflammation. It is described most often in the genital area. In a literature review, we found four cases of acquired orofacial lymphangiectasia associated with CD (Table 1).1,2,4 As in the case presented here, in two of these patients no granulomas were observed on histology, and in another case, they were only observed in the second biopsy. The medical treatment could have reduced the inflammation, leaving only the residual lymphangiectasia.1,2,4

In the absence of granulomatous inflammation, lymphangiectasia can be treated with cryotherapy, sclerotherapy, surgical excision, laser ablation, or photocoagulation.1 In our case, topical rapamycin was attempted with no results at 2 months. No cases of acquired lymphangiectasia have been successfully treated with topical rapamycin, but 0.1% topical sirolimus has been effective in cutaneous microcystic lymphatic malformations in children and adults.5

In conclusion, the presence of orofacial acquired lymphangiectasia could be an early marker of inflammatory bowel disease even in the absence of granulomatous cheilitis or digestive symptoms. Its diagnosis could help in the early detection of CD.