27 documents found, page 1 of 3
Diagnostic Accuracy of Dermoscopy in Melanocytic Lesions: Retrospective Study w...
Rebelo Gomes, Inês; Cardoso, José Carlos; Tellechea, ÓscarIntroduction: Dermoscopy is an in vivo, non-invasive technique that is widely used as a complementary method for the study of pigmented skin lesions and enables the early diagnosis of cutaneous melanoma. The purpose of the present study is to evaluate the diagnostic accuracy of dermoscopy and to extend the dermoscopy-histopatholoy correlations.Methods: Retrospective study using the database of the Dermoscopy an...
Scalp Metastasis from Follicular Hürthle-Cell Carcinoma of the Thyroid Challeng...
Tavares-Bello, Rui; Tavares-Bello, Carlos; Fernandes, Sónia; Serra, Carlos; Tellechea, Óscar; Garcia, HelenaOverall, skin metastases from internal malignancies are a rare event, ranging from 0.9% to 4.4% in large autopsy studies and reaching 9% in large series of patients. Skin metastases from thyroid carcinoma are even rarer and, among them, follicular carcinomas have seldom been reported in this context, far less so than papillary and medullary carcinomas. A 57-year-old Caucasian male presented with an angioma-like...
Desmoplastic Trichilemmoma arising on a Nevus Sebaceous of the Scalp
Tavares-Bello, Rui; Tellechea, Óscar; Fernandes, SóniaOriginally described by Jadassohn in 1895, it was not until 1932 that the term “nevus sebaceous” was introduced by Robinson. It is a prevalent benign congenital hamartoma that classically evolves through discrete phases of growth and that, from the 4th to the 7th decade of life, can give rise in approximately 10 to 30% of cases to several epithelial neoplasms. Very seldom reported in this context, trichilemmoma...
Gemcitabine-Induced Bullous Acral Erythema
Pinto-Gouveia, Miguel; Coutinho, Inês; Ramos, Leonor; Brites, Maria Manuel; Cardoso, José Carlos; Tellechea, Óscar; Figueiredo, AméricoChemotherapy-induced acral erythema is characterized by areas of painful erythema affecting predominantly hands and feet, and in severe cases bullous lesions may develop. Gemcitabine is frequently responsible for cutaneous side effects, but these are usually mild and transient. We report a patient under palliative chemotherapy for pancreatic ductal adenocarcinoma with gemcitabine, who presented large bullous le...
A New Insight over Telangiectasia Macularis Eruptiva Perstans
Pinho, André; Cardoso, José Carlos; Oliveira, Hugo; Tellechea, Óscar; Figueiredo, AméricoTelangiectasia macularis eruptiva perstans (TMEP) is a rare form of cutaneous mastocytosis with distinctive semiology and histopathology, but that is not free of controversy regarding its individualization as a nosological entity. For some authors, the presence of exclusively telangiectatic macules, along with superficial vascular plexus dilation and low density of mast cell infiltrates in the upper dermis is e...
Causa moderna de uma dermatose antiga – Eritema ab igne
Ferreira, Sara; Mota, Lourdes; Tellechea, Óscar; Figueiredo, Nuno; Mascarenhas, RosaIntrodução: O eritema ab igne é uma dermatose rara, caracterizada por lesões reticuladas hiperpigmentadas, secundárias a uma exposição prolongada e repetida ao calor. Múltiplas fontes de calor podem estar na sua génese, classicamente as “braseiras”, quando em proximidade com a pele. Caso clínico: Descreve -se o caso clínico de um adolescente diabético com eritema ab igne atípico, por ter sido induzido por um co...
UREMIC CALCIPHYLAXIS UNDER THE CALCIMIMETIC CINACALCET
Ramos, Leonor; Coutinho, I.; Linhares, L.; Brites, M. M.; Cardoso, José Carlos; Tellechea, Óscar; Gonçalo, MargaridaUremic calciphylaxis is a rare but serious complication of dialysis patients. Its pathogenesis is not completely understood, although many risk factors have been identified, such as hyperparathyroidism. Cinacalcet (a calcimimetic agent) is used to keep calcium, phosphorus and PTH within the normal range. A 72-year old female patient, under hemodialysis for 15 years with hyperphosphatemia, normocalcemia and hype...
PLAQUE-TYPE BLUE NEVUS – A SINGULAR VARIANT OF BLUE NEVUS
Coutinho, Inês; Ramos, Leonor; Gameiro, Rita; Vieira, Ricardo; Cardoso, José Carlos; Tellechea, ÓscarIntroduction: Plaque-type blue nevus is a rare variant of blue nevus, presenting usually as blue-gray plaque with superimposed nodules, beginning at birth or in early childhood and becoming stable during puberty. Its clinical, dermoscopic and even histopathological features may be worrisome and distinction from malignant blue nevus can be difficult, although its prognosis is generally favourable.Case Report: We...
PAPULO-NODULES LOCATED TO BOTH LOWER EXTREMITIES
Ramos, Leonor; Canelas, M. M.; Vieira, Ricardo; Reis, J. P.; Tellechea, Óscar; Figueiredo, AméricoPerforating diseases are characterized by transepidermal elimination of degenerated material, including collagen or elastic fibers. Acquired perforating dermatosis affects patients with diabetes mellitus or renal disease, especially under dialysis. An 86-year-old diabetic patient presents with very pruritic erythematous-violaceus papules and papulo-nodules, with a central crust. Lesions were evoluting for 2 mon...
PAPULO-NODULES LOCATED TO BOTH LOWER EXTREMITIES
Ramos, Leonor; Gameiro, R.; Cardoso, J. C.; Tellechea, Óscar; Moreno, A..; .