Granulomatous Inflammation with Chronic Folliculitis as a Complication of Bee Sting Acupuncture
Indian J Dermatol Venereol Leprol, 2013 Jul-Aug;79(4):554
Bee sting therapy is one of the traditional herbal medical procedures that has been widely used for the treatment of chronic recalcitrant neuralgia and arthralgia in Asian and Middle Eastern countries, and is also called apitherapy. There are two methods of this therapy, one is stinging directly to the treatment site [Figure 1] and the other is injecting the artificially extracted venom from a bee. The substrates that compose the venom of a bee have anti-inflammatory and analgesic effect. The bee leaves poison sac and neural plexus when stinging, and the retained sting materials at the treatment site may induce inflammation and granulomatous reaction.
A 50-year-old man visited our clinic complaining of erythematous papules and nodules with tingling sensation on his back [Figure 2] which showed wax and wane for the past 3 months, despite he had been treated with intralesional injection of steroid in a private clinic. He had no specific history but received bee sting acupuncture for several years in an oriental medical clinic due to his back pain. The skin lesions occurred after 2-3 years from the apitherapy procedures, directly at the sites that received the acupuncture. Histopathologic findings of biopsy specimen taken from the back showed perifollicular dense inflammatory infiltration composed of lymphocytes, plasma cells, and histiocytes [Figure 3]a and b. Around the perifollicular infiltration, ruptured granulomatous reaction composed of epitheloid cells and lymphocytes was shown [Figure 3]c. There was no giant cell or foreign body in the whole specimen. Special stains, Gomori methenamine silver (GMS) and diastase-periodic acid-Schiff (d-PAS) revealed negative findings. The patient was diagnosed as chronic folliculitis and granuloma caused by bee sting acupuncture treatment. For anti-inflammatory effect, he was treated with oral and topical antibiotics for a short period. The lesions showed slight improvement but the patient was not able to be followed-up…
Folliculitis is an inflammation in the perifollicular area that presents as erythematous papules and pustules on the trunk, neck and groin area. The causes of folliculitis are mostly infection, bacterial organisms, fungi such as Pityrosporum, viruses, and demodex. Histopathologic findings of chronic folliculitis differs from acute folliculitis, that it shows perifollicular infiltration composed of lymphoid cells, histiocytes and plasma cells rather than neutrophils.
Granulomatous inflammation is a distinctive inflammatory pattern characterized by granulomas, containing epitheloid histiocytes. Of the five histological types of granuloma, foreign body granulomatous reaction is divided into two subtypes, allergic and non-allergic. Foreign body type giant cells and foreign body surrounded by numerous histiocytes and lymphocytes are characteristically visualized in the non-allergic type. Besides, granuloma composed of histiocytes is seen in the allergic type, and phagocytosis of foreign body is not seen.  The granuloma of this patient is suggested to be an allergic type foreign body granulomatous reaction due to remained poison sac or neural plexus in the skin, not due to the stinger which should have been discovered in the serial section of the specimen.
Although several reports had been published in Korean literatures, there are only five reports of complications of bee sting acupuncture in English literatures, since apitherapy is usually performed in Asian and Middle Eastern countries. Only one case of the five English literatures is a dermatologic complication. Therefore, we report the first case of chronic folliculitis associated with granuloma as a complication of bee sting acupuncture therapy, and no reports of chronic folliculitis combined with granulomatous reaction as in our case have been reported.