Otophyma: a rare benign clinical entity mimicking leprosy.

Otophyma is a rare condition characterized by edematous deformation of the ear that is considered to be the end-stage of an inflammatory process such as rosacea and eczema. This report illustrates a case in an elderly male, originally thought to have leprosy. Biopsy revealed a nodular infiltration of inflammatory cells around adnexal structures and an intraepidermal cyst. No acid-fast organisms were identified. We present a patient who is of a different ethnic group than usually seen with this disease and provide a review of the clinical presentation, histopathological features, and management of this rare condition.

Multicentric calcified trichilemmal cysts with alopecia universalis affecting siblings.

Trichilemmal cyst, also known as "pilar cyst," is a benign cyst containing keratin and its breakdown products with a wall resembling external root sheath of hair. It occurs mostly in females as a solitary firm nodule over scalp. Occurrence of multiple trichilemmal cysts in areas other than scalp is extremely rare. We are reporting a case of a 40-years-old female who presented with multiple calcified trichilemmal cysts in multicentric distribution associated with alopecia universalis. Similar complaints were present in elder sister of the patient, indicating a genetic background. Multicentric distribution of trichilemmal cysts, calcification, familial occurrence, and association with alopecia universalis seen in our case are all rare and intriguing features.

Posttraumatic giant proliferating trichilemmal cysts on the parietal region of the scalp.

Proliferating trichilemmal (pilar) cysts, also known as pilar tumors, are most commonly found on the scalp of elderly women. Proliferating trichilemmal cysts are rare, slowly growing, lobular masses inherited autosomal dominantly and localized on scalps, and believed to arise due to a complication of a trauma and inflammation, and 5-10% of people are reported to be effected. Herein, we present the case of a 70-year-old woman with a 23-year history of multiple enlarging scalp masses. Clinically, squamous cell carcinoma was considered in the differential diagnosis, and the lesion was totally excised. Our case emphasizes the necessity for detailed clinical and pathological correlation for differential diagnosis.

Dermatoses do pavilhäo auricular / External ear dermatosis

Apresentamos uma atualizaçäo sobre as dermatoses que ocorrem no pavilhäo auricular. Propomos uma classificaçäo em sete grupos e realizamos uma sucinta descriçäo clínica de cada uma das 84 entidades catalogadas, de forma didática, com a finalidade de auxiliar o médico, sobretudo o clínico geral, o dermatologista e o otorrinolaringologista, no diagnóstico de tais patologias.