RESUMO
Chondroid syringoma is an uncommon, benign neoplasm of sweat gland origin. It clinically presents as a slowly-growing intradermal or subcutaneous nodule, and is usually observed on the head and neck of middle-aged to elderly people. Histologically, two types of chondroid syringoma can be recognized: one common type has tubular and cystic lumina and the other extremely rare type has small tubular lumina. We herein report a rare case of chondroid syringoma with small tubular lumina.
Assuntos
Idoso , Humanos , Adenoma Pleomorfo , Cabeça , Pescoço , Glândulas SudoríparasRESUMO
Intramuscular lipoma, also referred to as an infiltrating lipoma, is a rare, benign uncapsulated tumor that originates between skeletal muscle bundles and infiltrates through the intramuscular septa. These lipomas are generally found on the upper or lower limbs, but rarely occur on the face. We report a case of intramuscular lipoma of the chin, which has not ever been reported in Korea. Histopathological findings showed mature adipocytes infiltrating muscle in a diffuse manner. The lesion was excised completely and has shown no evidence of recurrence.
Assuntos
Adipócitos , Queixo , Coreia (Geográfico) , Lipoma , Extremidade Inferior , Músculo Esquelético , RecidivaRESUMO
Adenomatoid hyperplasia of the minor salivary glands is a rare clinicopathologic entity with an unknown etiology. The clinical features of the lesion are nodular, non-painful swellings, and the histologic features are aggregates of normal-appearing, salivary gland tissue, in excess of what would be anticipated for the anatomic site. This tumor is of significance because of its clinical resemblance to salivary gland tumors. Although this lesion may occur at any site on the oral mucosa, the labial mucosa is known to be the least common site. We herein report a rare case of adenomatous hyperplasia of the minor salivary glands located on the lower labial mucosa.
Assuntos
Hiperplasia , Mucosa Bucal , Mucosa , Glândulas Salivares , Glândulas Salivares MenoresRESUMO
We report here on a case of secondary cutaneous diffuse large B-cell lymphoma (DLBCL) that occurred in a 67-year-old man who had a 2-month history of nodular growing masses on the left cheek, plus palpable lymph nodes on the left cervical area. The histopathological findings showed a diffuse infiltration of large atypical lymphocytes with nuclear atypia throughout the entire dermis. These showed positive CD20, bcl-2 and the post-germinal center marker, MUM-1. According to the WHO (World Health Organization) classification, this lymphoma is considered to be diffuse large B-cell lymphoma of the post-germinal center (GC) B-cell type with a secondary cutaneous manifestation. We treated the patient with systemic chemotherapy (CHOP) and anti-CD20 monoclonal antibodies. During the course of treatment, new skin lesions developed on his neck, so we changed the regimen to cytosin- arabinoside and cisplatin. But he died of pneumonia after the third cycle.
Assuntos
Idoso , Humanos , Anticorpos Monoclonais , Linfócitos B , Bochecha , Cisplatino , Classificação , Derme , Tratamento Farmacológico , Linfonodos , Linfócitos , Linfoma , Linfoma de Células B , Pescoço , Pneumonia , Pele , Organização Mundial da SaúdeRESUMO
NK/T-cell lymphomas which are characterized by the biphenotype of the NK-cell and the T-cell are divided into nasal and non-nasal NK/T-cell lymphoma, non-nasal NK/T-cell lymphoma is then further subdivided into primary cutaneous and 4 subtypes of secondary cutaneous lymphoma such as nasal type, aggressive, blastic(blastoid), and other specific NK-like T-cell lymphoma. Primary cutaneous NK/T-cell lymphoma is a very rare condition and defined as a lack of extracutaneous disease for at least 6 months from the time of diagnosis. We herein report a case of non-nasal NK/T-cell lymphoma, which is consistent with primary cutaneous type.