Hiperplasia Adenomatoide en Reborde Alveolar Maxilar: Una Presentación Inusual

RESUMEN: La hiperplasia adenomatoide (HA) se considera una patología no neoplásica de etiología desconocida asociada principalmente a trauma como principal factor causal, con localización frecuente en paladar duro y blando. El presente caso muestra el primer caso de HA en reborde alveolar asociado a prótesis removible mal adaptada. Hombre de 81 años con diabetes mellitus y HTA controlada presentaba un aumento de volumen nodular en reborde alveolar maxilar del color de la mucosa, de consistencia firme y márgenes definidos que medía 1,5 x 0,7 cm de diámetro, asintomático y asociada a falta de diente 1.3 protésico reportando 6 años de evolución. Se realizó biopsia excisional y estudio histopatológic o con hiperplasia de acinos glandulares. El 80 % de los casos se observa en paladar seguida de la mucosa oral, lengua y zona retromolar, pero sin reportes en encía o reborde alveolar. El factor causal mayormente asociado es el trauma crónico principalmente asociado a prótesis mal adaptadas, aunque existen estudios de un cromosoma aberrante con un rol desconocido tanto en su patogénesis como en su posible potencial maligno. En el caso actual, la lesión se asocia fuertemente a prótesis removible mal adaptada sugiriendo una lesión de aspecto reactivo. Por lo tanto, la HA se debe incluir como diagnóstico diferencial tanto a nivel palatino como en otras localizaciones incluyendo reborde alveolar. Además, se debe considerar cuando existe un factor etiológico traumático como prótesis removibles mal adaptadas, siendo necesario su confirmación mediante estudio histopatológico especialmente por su similitud con otras patologías.

ABSTRACT: Adenomatoid hyperplasia (AH) is considered a non-neoplastic pathology of unknown etiology but mainly associated with trauma as the main causal factor, with frequent localization on hard and soft palate. The present case shows the first case of AH on the alveolar ridge associated with a poorly adapted removable prosthesis. An 81-year-old man with diabetes mellitus and arterial hypertension controlled presents a nodular tumor in the maxillary alveolar ridge of the color of the mucosa, with a firm consistency and defined edges measuring 1.5 x 0.7 cm in diameter, asymptomatic and associated with a lack of a 1.3 prosthetic tooth reporting 6 years of evolution. Excisional biopsy and histopathological study were performed with glandular acini hyperplasia. The AH is observed in 80 % of cases on the palate followed by the oral mucosa, tongue and retromolar area, but without reports on the gingiva or alveolar ridge. The most associated causal factor is chronic trauma, mainly associated with poorly adapted prostheses, although there are studies of an aberrant chromosome with an unknown role both in his pathogenesis and possible malignant potential. In the current case, the lesion is strongly associated with a poorly adapted removable prosthesis, suggesting a lesion with a reactive appearance. Therefore, AH should be included as a differential diagnosis both at the palatal level and in other locations including the alveolar ridge. In addition, it should be considered when there is a traumatic etiological factor such as poorly adapted removable prostheses, It's confirmation by histopathological study being necessary, especially due to its similarity with other pathologies.

Recommendations of Test of Prostate-specific Antigen along with Histopathological Examination for the Prostate Lesions

Introduction: Prostate disease is an important growing health problem, presenting a challenge to urologists, radiologists, and pathologists. Objectives: The aim of the study is to correlate prostatic-specific antigen test with histopathological examination in prostatic lesions and to recommend combine approach for management of the patients of prostatic lesions. Materials and Methods:This was a prospective study conducted at the department of pathology in a tertiary care center over 6 months. Data were collected from histopathology record department. The 2002 WHO classification was used to diagnose and classify prostate tumors. Gleason’s grading system was used for the cases of adenocarcinoma. Results: In our study, a total of 119 cases of prostatic lesions were noticed. The lesions diagnosed were benign prostatic hyperplasia (79% of cases), adenocarcinoma (6% of cases), prostatic intraepithelial neoplasia (4% of cases), stromal nodules of hyperplasia (4% of cases), and atypical adenomatous hyperplasia (4% of cases). A total of 3% of cases were inadequate. Majority of prostatic lesions were belonging to the 6th decade followed by the 7th decade. All cases of adenocarcinoma were belonging to the 6th decade. The test of prostatic-specific antigen was higher (more than 10 ng) in cases of adenocarcinoma. Conclusions: The study is conducted to see that combine approach of prostate-specific antigen and histopathological examination is useful for its recommendation, for better management of prostatic lesions in tertiary care center.

Prenatal and pubertal testosterone exposure imprint permanent modifications in the prostate that predispose to the development of lesions in old Mongolian gerbils / 亚洲男科学杂志(英文版)

The prostate is an accessory sex gland that develops under precise androgenic control. It is known that hormonal imbalance may disrupt its development predisposing this gland to develop diseases during aging. Although the hypothesis regarding earlier origins of prostate diseases was proposed many years ago, the mechanisms underlying this complex phenomenon are poorly understood. Therefore, the aim of this study was to evaluate the prostates of old male gerbils exposed to testosterone during intrauterine and postnatal life using morphological, biometrical, stereological, Kariometric, immunohistochemical, and immunofluorescence analyses. Our findings demonstrate that prenatal and pubertal exposure to testosterone increases the susceptibility to the development of prostate diseases during aging. The presence of a more proliferative gland associated with foci of adenomatous hyperplasia in animals exposed to testosterone during the prenatal and pubertal phase show that the utero life and the pubertal period are important phases for prostatic morphophysiology establishment, which is a determinant for the health of the gland during aging. Therefore, these findings reinforce the idea that prostate disease may result from hormonal disruptions in early events during prostate development, which imprint permanently on the gland predisposing it to develop lesions in later stages of life.

Extremely Well-Differentiated Papillary Thyroid Carcinoma Resembling Adenomatous Hyperplasia Can Metastasize to the Skull: A Case Report

We describe herein histologic, immunohistochemical, and molecular findings and clinical manifestations of a rare case of an extremely well differentiated papillary thyroid carcinoma (EWD-PTC). Similarly, it is also difficult to diagnose follicular variant papillary thyroid carcinoma (FVPTC), whose diagnosis is still met with controversy. A recently reported entity of well-differentiated tumor of uncertain malignant potential (WDT-UMP) is added to the diagnostic spectrum harboring EWD-PTC and FVPTC. We report this case, because EWD-PTC is different from FVPTC in its papillary architecture, and also from WDT-UMP in its recurrence and metastatic pattern. These morphologically deceptive entities harbored diagnostic difficulties in the past because the diagnosis depended solely on histology. However, they are now diagnosed with more certainty by virtue of immunohistochemical and molecular studies. We experienced a case of EWD-PTC, which had been diagnosed as adenomatous hyperplasia 20 years ago and manifested recurrence with lymph node (LN) metastasis 7 years later. After another 7 years of follow-up, a new thyroid lesion had developed, diagnosed as FVPTC, with LN metastasis of EWD-PTC. One year later, the patient developed metastatic FVPTC in the skull. Immunohistochemically, the EWD-PTC was focally positive for CK19, negative for galectin-3, and focally negative for CD56. Molecular studies revealed BRAF-positivity and K-RAS negativity. The FVPTC in the left thyroid showed both BRAF and K-RAS negativity. In conclusion, EWD-PTC and FVPTC share similar histologic features, but they are different tumors with different molecular biologic and clinical manifestations. A large cohort of EWD-PTC should be included in further study.

Linfangioma mesentérico / Mesentery lymphangioma

El linfangioma representa el 6 por ciento de los tumores benignos, y su localización más frecuente es la región cervical, seguida de la axila en el 95 por ciento de los casos. Solo un 5 por ciento tiene localización en otro sitio. Dentro de estos, los abdominales representan entre el 2 y el 5 por ciento , y los más frecuentes son los del mesenterio. Se presenta el caso de una paciente de 45 años con el diagnóstico de metrorragia disfuncional, que a pesar del tratamiento hormonal, aumentó en intensidad. Se le practicó un legrado diagnóstico, cuyo resultado fue hiperplasia adenomatosa con ligera atipia, y se le indicó una histerectomía abdominal, que se realizó sin dificultad. En el transcurso de esta intervención se llevó a cabo la extirpación de un tumor del mesenterio del yeyuno, cuyo diagnóstico histológico definitivo fue linfangioma mesentérico(AU)

The lymphangioma accounts for the 6 percent of the benign tumors and its more frequent location is the cervical region, followed by the axilla in the 95 percent of cases. Only the 5 percent is located in other site including the abdominal ones accounting for the 2 and the 5 percent and the more frequent are those of mesentery. This is the case of a patient aged 45 diagnosed with dysfunctional metrorrhagia that despite the hormonal treatment increased its intensity. A diagnostic curettage was made whose result was an adenomatous hyperplasia with a slight atypia prescribing an abdominal hysterectomy carried out without problem. During this intervention a yeyunal mesenteric tumor was removed with a definitive histological diagnosis of mesenteric lymphangioma(AU)

Adenomatous Hyperplasia Arising from Dual Ectopic Thyroid

Ectopic thyroid tissue is an uncommon embryologic aberration characterized by the presence of thyroid tissue in a site other than its usual pre-tracheal location. Single ectopic thyroid tissue is the most common variant, and the base of the tongue is the most frequent ectopic location. Dual ectopic thyroid is extremely rare, and only eleven cases have been reported in the English literature. Furthermore, adenomatous hyperplasia has never been reported to arise from dual ectopic thyroid. There has been only one reported case of adenomatous hyperplasia arising from a single intratracheal ectopic thyroid. We report a case of adenomatous hyperplasia arising from dual ectopic thyroid tissue that presented as a sublingual mass in a 37-yr-old woman. The diagnosis was made through pathologic examination after surgical resection. We also discuss the diagnosis and treatment of ectopic thyroid, along with a review of the literature.

A Case of Adenomatous Hyperplasia of the Minor Salivary Glands

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.

CT Findings of Atypical Adenomatous Hyperplasia in the Lung

OBJECTIVE: The aim of this study was to analyze the computed tomographic (CT) findings of atypical adenomatous hyperplasia (AAH) in the lung. MATERIALS AND METHODS: The CT findings of AAHs in eight patients were retrospectively reviewed. The CT findings of each AAH lesion were evaluated for multiplicity, location, shape, size and internal density of the lesion, the interface between the normal lung and the lesion, the internal features within the lesion and any change of the lesion on the follow-up CT scans (range: 33 to 540 days; average: 145.3 days). RESULTS: The eight patients consisted of three men and five women (age range: 43-71 years). Six of eight patients were asymptomatic. Four of them (50%) had synchronous malignancies in the lung: adenocarcinoma of the lung (n = 3), and metastatic squamous cell carcinoma from the uterus (n = 1). We could identify and evaluate eleven AAH nodules in seven patients on the CT scans. Three patients had multiple AAHs. Seven of the 11 lesions (64%) were located in the upper lobe. All the AAHs showed a well-defined oval or round shape and pure ground-glass opacity (GGO) without any solid component (size: 3.9x3 mm to 19x17 mm; internal attenuation: -467 to -785 HU). All the AAHs showed no change of their size and internal density on the follow-up CT scans. CONCLUSION: Atypical adenomatous hyperplasia is often associated with malignancy. This tumor is shown on CT as persistent well-defined oval or round nodular GGOs without solid components, and it does not change on the follow-up CT.

Multiple Atypical Adenomatous Hyperplasia Mimicking Lung to Lung Metastasis: A Case Report

Atypical adenomatous hyperplasia (AAH) is regarded as a precancerous lesion in the multistep process for carcinogenesis of pulmonary adenocarcinoma. AAH is found in up to 25% of the lung tissue adjacent to cancer, particularly adenocarcinoma and also in 2-4% of autopsy cases. Until now, its main clinical significance is that some tumor recurrences are the lesions that have progressed from undetected AAH or they are newly developed cancers arising from AAH during the follow-up after the resection of adenocarcinoma. We present here the case of a 58-year-old woman having a large main adenocarcinoma with multiple small AAHs that mimicked lung-to-lung metastasis. AAH should be considered in the differential diagnosis of multiple small nodules during the preoperative evaluation and also during the follow-up of lung cancer patients.

Surgical Management of Intraductal Papillary Mucinous Tumor of the Pancreas

BACKGROUND: Intraductal papillary mucinous tumor (IPMT) of the pancreas is a rare tumor arising in the main pancreatic duct or its subbranches. It is characterized by a diffusely or focally dilated main pancreatic duct filled with mucus and a mucus secretion through a patulous duodenal papilla. METHODS: The clinicopathologic characteristics of eight IPMT cases which were resected surgically from January 1994 to August 1998 at Seoul National University Hospital were reviewed to consider the optimal surgical treatment. RESULTS: The range of ages was from 49 to 70 years with a mean age of 59.3. Five were men and three were women. The prominent symptom was upper abdominal pain. Seven patients had been treated for pancreatitis before. Tumor markers didn't correlate with the pathologic status. In all the cases, a dilated pancreatic duct with secretion of mucin was found in the radiologic studies. Four lesions were located in the uncinate process, 3 in the body, and 1 diffusely. One total pancreatectomy, 1 Whipple's procedure, 3 pylorus-preserving pancreatoduodenectomies, 1 duodenum-preserving resection of the head of the pancreas, and 2 subtotal pancreatectomies were performed. Three lesions were malignant, another three were borderline malignant, and the remaining two were benign. Three were multiple lesions. Lesions for which the main pancreatic duct was dilated more than 0.5 cm, lesions greater than 2.5 cm, lesions with a mural nodule greater than 1.0 cm, or type 1, 2, 3 lesions were borderline malignant or malignant. There was no lymphatic metastasis. After a follow-up duration from 1 month to 56months, all patients are alive at the time of study and have experienced no locoregional recurrence or distant metastasis. CONCLUSIONS: In the radiologic studies, an IPMT should be considered in a multilobulating cystic lesion with the dilated main pancreatic duct. The lesions are variable from benign to malignant and often spread intraductally. When the lesion seems to be malignant, an aggressive resection is recommended.

Atypical Syringocystadenoma Papilliferum with Adenomatous Hyperplasia / 대한피부과학회지

We report a case of syringocystadenoma papilliferum (SCAP) occurring in a 28 year-old male who had a 2cm X 1cm X0.7cm sized papillomatous and cauliflower-like tumor on the left inguinal area without any subjective symptoms. A Histopathological examination revealed cystic invaginations which contained a few well defined papillary projections and proliferation of ductal structures at the periphery. The papillae were covered by columnar epithelial cells on the luminal side with frequent, tufting and piling up, whereas the underlying cells were small cuboidal ones and contained a vascularized stroma and dense lymphoplasma cell infiltration. The majority of ductules contained amorphous eosinophilic material and some showed intraluminal papillation and decapitation secretion. Immunohistochemical studies with S-100 antigen, CEA, and EMA were performed. Studies of S-100 antigen and EMA were nonspecific. CEA was positive in the amorphous intraluminal materials and apical cells of the lumen. The histopathological and immunohistochemical studies revealed rather typical findings of SCAP.

Morphometric measurements of adenomatous hyperplasia of the liver by image analyzer / 中华消化杂志

Seven cellular parameters in adenomatous hyperplasia of the liver (AHL), compared with normal liver cells (NLC) and hepatocellular carcinoma (HCC), were analyzed quantitatively by measuring the seven parameters of the cell nuclei, the area (AREA), perimeter (PERIM), maximum diameter (DMAX), minimum diameter (DMIN), the equivalent circle diameter (DCIRCLE), circularity shape factor (FCIRCLE) and shape factor (FSHAPE) using computerized image analyzer. The main results were: (1) All the above seven nuclear parameters in AHL were significantly different from those in NLC, three parameters (DMAX, DMIN and FSHAPE) in AHL were not obviously different from those in HCC, indicating that AHL and NLC were not of the same cellular population, and AHL had a tendency of approaching HCC in the nuclear features; (2) Not alike NLC and HCC, the scattered distribution between nuclear FCIRCLE and DCIRCLE in AHL presented a highly dispersed distribution, overlapping the areas of NLC and the greater part of HCC, suggesting that AHL being an abnormal cellular population composed of cells in different proliferative status between NLC and HCC; (3) All of five resected AHL in the present study showed early malignant transformation. We conclude that AHL possesses the general features of precancerous lesion, and should be considered as the important precancerous lesion of HCC.