Lymphocytoma cutis: diagnostic enigma for the maxillofacial surgeon

Cutaneous lymphoid hyperplasia (CLH) is a cutaneous pseudolymphoma with a worldwide distribution, equally affecting all races and ethnic groups. Due to its vast array of characteristics, it is most often missed in the differential diagnosis of firm to soft lumps on the head and neck. A systematic approach to the workup and diagnosis along with treatment of such lesions is discussed in this article. A 20-year-old Asian Indian female presented to our Oral and Maxillofacial unit with a lump on the left side of her forehead for 1 month. Local examination revealed a 2.5×3.0 cm², well circumscribed swelling over the left para median region that was firm to doughy and non-tender. There was no other significant finding on general examination. Excisional biopsy of the lesion was performed, followed by histopathologic processing. The general etiology, pathogenesis, clinical presentation, differential diagnosis, clinical course, prognosis, treatment, and prevention have been discussed in line with the recent modalities of diagnosis and treatment of CLH. Due to the overlapping clinical and histological characteristics of CLH with many other lesions, it is important to consider this lesion in the differential diagnosis of cutaneous lesions.

A Case of Pseudolymphoma on the Lip / 대한피부과학회지

Cutaneous pseudolymphoma is a benign reactive lymphoproliferative process that clinically and histologically simulates cutaneous lymphomas. Cutaneous pseudolymphoma usually develops as solitary or multiple erythematous papules or nodules. The face, scalp, and neck are the most common sites for pseudolymphomas. Several cases of pseudolymphomas on the lip have been reported previously in the literature but are rare. A 52-year-old woman presented with an asymptomatic, solitary, indurated, erythematous swelling of the mucosa of the upper lip, which had been present for several years. A punch biopsy was performed, and histologically, the lesion was diagnosed as cutaneous pseudolymphoma. Despite treatment with triamcinolone acetonide intralesional injection and systemic steroids, the lesion waxed and waned for 1 year. After stopping treatments for several months, the lesion spontaneously resolved. Herein, we report a rare case of pseudolymphoma on the lip without causative history.