More than 40 years ago Landsteiner (1) showed that simple haptens can combine with antihapten antibodies and prevent their specific precipitation with the homologous antigen. However, a systematic study on the in vivo reactions of antibodies directed against simple haptens and the role of haptens in provoking or inhibiting these reactions is still lacking. Since passive cutaneous anaphylaxis (P...

The leishmaniases are diseases caused by pathogenic protozoan parasites of the genus Leishmania. Infections are initiated when a sand fly vector inoculates Leishmania parasites into the skin of a mammalian host. Leishmania causes a spectrum of inflammatory cutaneous disease manifestations. The type of cutaneous pathology is determined in part by the infecting Leishmania species, but also by a c...

BACKGROUND Anthrax is a disease of herbivorous animals, and humans incidentally acquire the disease by handling infected dead animals and their products. Sporadic cases of human anthrax have been reported from Southern India. METHODS Five tribal men presented with painless ulcers with vesiculation and edema of the surrounding skin on the extremities without any constitutional symptoms. There ...

In a randomized open study, we compared the efficacy of a single dose of oral ivermectin (200 microg/kg) and oral albendazole (400 mg/day for 21 days) for the treatment of cutaneous gnathostomiasis. Thirty-one patients were randomly assigned to receive ivermectin (n = 17) or albendazole (n = 14). Thirteen of 17 patients who received ivermectin responded, 3 relapsed, and 1 was unresponsive (cure...

A 25-year-old lady with a high-output, tuberculous, entero-cutaneous fistula was managed successfully by conservative means in a teaching hospital in Nairobi, Kenya.

Malakoplakia is a rare acquired disease that can affect many systems but is more common in the urogenital tract. Cutaneous malakoplakia is even rarer. It is far more frequent in immunodeficient patients. We report a case of cutaneous malakoplakia in a kidney transplant patient who had recently stopped receiving immunosuppressive therapy to illustrate a review of the relevant recent literature.

A 43-year-old woman presented with erythematous papules and plaques on the forehead evolving in the previous 3 months (Fig. 1). Diascopy, by showing a yellowish nodule-like aspect (Fig. 2), raised the hypothesis of cutaneous sarcoidosis, which was confirmed by histopathological examination. Sarcoidosis is a multisystemic granulomatous disease, a histologically evident characteristic shared by i...

BACKGROUND The relationship between cutaneous malignant melanoma and sunlamp use is examined in a Caucasian population in Connecticut, United States. METHODS Cases were diagnosed between 15 January 1987 and 15 May 1987 with a first primary cutaneous melanoma. Controls were obtained from the general population, frequency matched to cases by sex and age, through random digit dialling of Connect...

Cutaneous larva migrans (CLM) is a pruritic dermatitis caused by migration of the animal hookworm larvae into the epidermis. We present a case of CLM in a 31-year-old pregnant woman. The treatment of CLM relies on antihelminthic agents, such as thiabendazole, albendazole, and ivermectin. This case was interesting in that the standard treatment options previously mentioned were contraindicated o...

Objective To evaluate cutaneous allodynia among patients with chronic and episodic migraine in a tertiary headache clinic. Methods 80 subjects with episodic migraine and 80 with chronic migraine were assessed in a tertiary hospital. The 12-item Allodynia Symptom Checklist/Brazil questionnaire was applied to classify subjects according to the presence and severity of cutaneous allodynia. Res...