Rhabdomyomatous Mesenchymal Hamartoma: A Deep Subcutaneous Lesion in the Sternoclavicular Area.

Cutaneous rhabdomyomatous mesenchymal hamartoma (RMH) is a rare benign tumor composed of two or more types of mesenchymal-derived cells. RMHs are generally sporadic and independent, but they can be associated with congenital abnormalities. We report a subcutaneous case of RMH in the sternoclavicular area with two recurrences after complete surgical excision.

Analysis of POU5F1, c-Kit, PLAP, AP2γ and SALL4 in gonocytes of patients with cryptorchidism.

Cryptorchidism is a risk factor for the development of testicular germ cell tumors (TGCTs). The most common type of TGCT in cryptorchidism is seminoma. The intratubular germ cell neoplasia unclassified (ITGCNU) is a histological pattern preceding the development of seminomas and non-seminomas.

Neonatal vesiculopustular eruption associated with transient myeloproliferative disorder: report of four cases.

Background: Transient myeloproliferative disorder (TMD) affects up to 10% of patients with Down syndrome (DS). A small proportion of newborns are asymptomatic and only manifest circulating blast cells, with or without leukocytosis, while others present with hepatomegaly, splenomegaly, serous effusions, and liver fibrosis. Few cases in the literature also have skin manifestations, described as crusted, erythematous, vesiculopustular eruptions occurring mainly on the face, with spreading to the trunk and extremities.

Treatment of Kimura disease with intravenous immunoglobulin.

Kimura disease is an uncommon chronic inflammatory condition of unknown etiology and is characterized by painless subcutaneous nodules, usually affecting the head and neck, eosinophilia, and markedly elevated immunoglobulin E levels. Several reports have described the main modalities of treatment; both corticosteroids and surgery have provided good results, but occasionally corticosteroids cannot be tapered as the disease flares up. We report here the case of an 8-year-old boy diagnosed with Kimura disease who was successfully treated with 1 dose of intravenous immunoglobulin as a steroid-sparing agent.

Congenital cutaneous angioleiomyoma.

Congenital cutaneous angioleiomyoma is an extremely rare benign smooth muscle tumor. We present a case of a firm, painful subcutaneous mass noticed at birth on the left leg that on surgical excision proved to be an angioleiomyoma. Prognosis is good, and recurrences are uncommon.

Central odontogenic fibroma: new findings and report of a multicentric collaborative study.

Objective: The aim of this study was to describe the clinicopathologic and immunohistochemical characteristics of 14 cases of central odontogenic fibroma (COF), and the ultrastructural features of 2 of them.

Study Design: Collaborative retrospective study based on the records of 4 oral pathology diagnostic services in Latin America based on the current World Health Organization classification.

Results: There were 7 male and 7 female patients (mean age 31.

[Cardiac malformations in patients with pentalogy of Cantrell and ectopia cordis].

We studied 21 patients who presented with a diagnosis of pentalogy of Cantrell. Their mean age was 40 days. All patients presented with congenital heart disease.

[Inflammatory myofibroblastic tumour of the tonsil: case report and literature review].

Inflammatory myofibroblastic tumour (inflammatory pseudotumor) is an idiopathic lesion, rare in the head and neck, of unknown aetiology. It is primarily a soft tissue, lung and orbital condition. In the world literature, only two cases with tonsillar disease have been found.

Piroxicam and meloxicam ameliorate hepatic oxidative stress and protein carbonylation in Kupffer and sinusoidal endothelial cells promoted by ischemia-reperfusion injury.

The present study was aimed to assess the effect of protein carbonylation (PC) in hepatic cells and effects of nonsteroidal anti-inflammatory drugs (NSAIDs) on indicators of tissue damage induced by liver ischemia-reperfusion injury (LIRI). Warm ischemia was performed by partial vascular occlusion during 90 min in Wistar rats. In serum, we determined the catalytic activity of Alanine Aminotransferase, Aspartate Aminotransferase, Lacticate Dehydrogenase, and Ornithine Carbamoyltransferase.

Comparative expression of syndecan-1 and Ki-67 in peripheral and desmoplastic ameloblastomas and ameloblastic carcinoma.

The aims of the present study were to examine whether the pattern of syndecan-1 expression correlates with cellular proliferation index in desmoplastic ameloblastomas (DA), peripheral ameloblastomas (PA) and ameloblastic carcinomas (AC), and to compare with that previously reported for solid (SA) and unicystic (UA) variants of ameloblastoma. Immunohistochemistry was performed for syndecan-1 and Ki-67 in seven ameloblastomas (four DA and three PA) and three AC. Expression of syndecan-1 was related to the histological subtype of tumors and, in the case of malignancy, to lower expression levels observed in AC (22.

Syndecan-1 (CD138) and Ki-67 expression in different subtypes of ameloblastomas.

Ameloblastoma is the most frequent odontogenic tumor and is considered a benign, but locally invasive, neoplasm with variable clinico-pathological expression. Syndecan-1 is a cell surface proteoglycan that binds cells to the extracellular matrix and its expression is down-regulated in many cellular transformation models. The aims of this study were to examine the pattern of syndecan-1 expression, to evaluate the proliferating activity in a large series of solid/multicystic (SA) and unicystic ameloblastomas (UA), and to study its possible correlation to their biological behavior.

Hyper-IgE syndrome and autoimmunity in Mexican children.

Hyper-IgE syndrome (HIES) is a primary immunodeficiency characterized by recurrent skin abscesses, recurrent pneumonia with pneumatocele formation, eczema, eosinophilia, and elevated levels of serum IgE. Patients with the autosomal recessive (AR) form of HIES appear to be prone to developing autoimmune diseases. We present two cases of HIES with autoimmune complications; one case was a product of a consanguineous marriage, the other one was a sporadic case.

Discoid lupus erythematosus in children: clinical, histopathologic, and follow-up features in 27 cases.

Among 27 pediatric patients with a clinicopathologic diagnosis of discoid lupus erythematosus (DLE), 15 had localized cutaneous lesions and 12 had disseminated lesions. During a mean follow-up period of 36 months, seven patients (26%) developed systemic lupus erythematosus (SLE). Four of these patients were less than 10 years of age.

Scleroderma 'en coup de sabre' and progressive facial hemiatrophy. Is it possible to differentiate them?

The aim was to be able to evaluate the diagnosis of two diseases by a consensus of clinical opinion used in the Department of Dermatology of the National Institute of Paediatrics in Mexico City. To differentiate between scleroderma 'en coup de sabre' (SCS) and progressive facial hemiatrophy (PFH), colour slides of 13 patients diagnosed as SCS and nine as PFH were examined by two dermatologists and microscopic slides by two pathologists. In both cases, the slides were randomly presented and no clinical information was given.

Cloverleaf skull and multiple congenital anomalies in a girl exposed to cocaine in utero: case report and review of the literature.

The case of a girl with cloverleaf skull (CLS) and multiple congenital anomalies is reported. Both parents have a history of drug use. Maternal cocaine abuse during the first trimester of pregnancy was obvious, and other drugs, such as marihuana and alcohol, were also taken by the mother.

Diagnostic and therapeutic approach to sialoblastoma: report of a case.

The natural history of a rare parotid tumor, the sialoblastoma (embryoma) is reported. It is a blastematous neoplasm said to recapitulate the epithelial differentiation of a gland at various stages of development. The tumor grew in a period of 5 years (from shortly after birth until it was excised) to a firm asymptomatic mass measuring 5 cm in greatest diameter.

Intrauterine epidermal necrosis: report of three cases.

Background: Extensive epidermal necrosis in newborn infants is an unusual event of heterogeneous cause.

Objective: The objective of this article is to describe what seems to be a previously unrecognized lethal disease.

Methods: The clinical and histopathologic features of three premature infants, two of them nonidentical twins, and the autopsy findings of one of them were analyzed.