RESUMO
Multicentric reticulohistiocytosis is a rare multisystemic condition associated with papulonodular skin lesions, severe arthritis and malignancy. Histopathology shows histiocytes containing abundant eosinophilic ground glass cytoplasm and multinucleated giant cells. Early recognition, age-appropriate malignancy work-up and treatment is important to prevent impairment of daily life activity.
RESUMO
Coined in 1961 by Hirsch and Helwig, the term chondroid syringoma refers to a rare mixed tumour of subcutaneous tissue. Histologically, these tumours are almost identical to pleomorphic adenomas, arising from salivary glands. With the obvious difference being the presence of sweat gland tissue (syringoma) within a matrix of cartilage (chondroid). These mixed tumours remain scarce throughout the world, with an incidence of less than 0.098%. The vast majority of cases are reported in middle-aged and older adults, where they typically present as painless swellings in the head and neck, which gradually grow in size.
Assuntos
Adenoma Pleomorfo , Mioepitelioma , Neoplasias das Glândulas Sudoríparas , Adenoma Pleomorfo/diagnóstico por imagem , Adenoma Pleomorfo/cirurgia , Idoso , Criança , Cabeça , Humanos , Masculino , Pessoa de Meia-Idade , Pescoço , Neoplasias das Glândulas Sudoríparas/diagnóstico , Neoplasias das Glândulas Sudoríparas/cirurgiaAssuntos
Adenocarcinoma , Faringe , Adenocarcinoma/diagnóstico por imagem , Humanos , Pescoço , NarizRESUMO
Renal cell carcinoma represents 2-3% of all adult malignancies, and metastasis to the head and neck is a presenting complaint in 8% of these patients. Cutaneous facial renal cell carcinoma with no known primary renal tumour is unusual. We report a case of renal cell carcinoma of the nose with no known primary.