A solitary hyperkeratotic papule on the palm

A case of a glomus tumor presenting as an atypical hyperkeratotic papule of the hypothenar palm

Fig 1. A glomus tumor of the hypothenar eminence. Photo from clinical examination shows a hyperkeratotic papule. Note the resemblance of a foreign body. INTRODUCTION Glomus tumors are rare, benign vascular neoplasms typically localized to the digits, with a propensity for the subungual region of the hand. These subcutaneous hamartomas are derived from hyperplasic modified smooth muscle cells, s...

A pink papule on the forehead of a young woman

Solitary orange papule on the back of a middle-aged man

A 51-year-old man with a history of recurrent primary cutaneous marginal zone lymphoma involving his back returned for a follow-up visit at our cutaneous lymphoma clinic. He complained of a several-month history of a new asymptomatic papule on the mid-thoracic back. He denied fevers, chills, night sweats or fatigue. Clinical examination identified a 3 to 4 mm red to orange-colored papule on the...

What is your diagnosis? A solitary purple papule on the arm—Answer

Kaposi sarcoma (KS) was first described by Kaposi in 1872. There are four clinical types of the disease: classic, endemic, epidemic and iatrogenic [1]. Iatrogenic KS develops in patients taking immunosuppressive treatment. Bluish-reddish coloration is seen in 84% of KS lesions in dermatoscopy. Rainbow pattern and scaly surface are other dermatoscopic features of KS (36% and 15%, respectively) [...

What is your diagnosis? A solitary purple papule on the arm

A 54-year-old woman with immune thrombocytopenic purpura (ITP) referred to our dermatology department with a three-week-history of a purple-colored lesion on her right arm. The patient was on treatment with oral prednisone at 20 mg/day for ITP and levothyroxine at 25 mg/day for hypothyroidism. No topical treatment was prescribed or used before our consultation. Dermatological examination reveal...