An 8-year-old neutered female British Blue cat was presented with a presumed diagnosis of a prolapsed nictitans gland and associated ocular irritation and epiphora. However, during surgery, the apparent nictitans gland protrusion was determined to be an everted cartilage of the nictitating membrane. The scrolled portion of the cartilage was ...

Isolated ectopic brain tissue within the orbit is an extremely rare finding and has never been reported in dogs or other domestic species. In this case, a focal choristoma of ectopic grey matter-like tissue was present within the retina of a mature female beagle dog, and consisted of neurons and ...

Objective - To report a case of bilateral uveitis believed to be a consequence of septic peritonitis in a 19-month-old cat. Case Summary - Bilateral anterior uveitis with suspicion of extension to the posterior segment was documented in a previously healthy young cat during hospitalization for severe septic peritonitis. Based ...

The cat flea, Ctenocephalidesfelisfelis (Siphonaptera: Pulicidae) has been reported to parasitize many species of wild and domestic animals and could serve as a vector of zoonotic pathogens. This is the first report of the presence of cat fleas on the Asiatic Golden Cat, Catopuma temminckii (Carnivora: Felidae), quarantined in Khao ...

Cystic choroid plexus papilloma (CPP) of the third ventricle is rare. The authors have reported a case of cystic CPP resected successfully through neuroendoscopic approach. An 18-year-old young man was admitted to our hospital, presented with blurred vision and paroxysmal, intermittent, severe headache for 1 month as well as nausea ...

We report a case of cat-associated sporotrichosis in an adult female in California. A retrospectively diagnosed cutaneous sporotrichosis infection in the patient's cat and the unusual site of the primary lesion in the patient contributed to delayed diagnosis and treatment. Here, we also review the English literature regarding the epidemiology ...

Nodular mucinosis is an extraordinary stromal lesion of the breast. The usual clinical presentation is that of an oozing, slow-growing, soft, non-tender, lobulated mass in the subareolar region. Histologically, it is a non-encapsulated myxoid/mucinous lesion with a sparse infiltrate of spindle cells within a collagenized stroma. The histogenesis of nodular ...

Hepatoid adenocarcinoma arising in the esophagus is extremely rare. To date, there are only 3 cases in the world English literature. We report the fourth case here. A 76-year-old Japanese man was admitted to our hospital because of the deterioration of nephritic syndrome. He presented with chest burn, and the ...

Atypical fibroxanthoma (AFX) is a lesion that typically occurs on actinically damaged skin of the head and neck. Histopathology of these neoplasms reveals atypical cells, which often demonstrate positive staining for immunohistochemical markers such as vimentin and CD10. In the case reported, keloidal collagen was discovered on histopathology. To our ...

Turcot syndrome (TS) is a rare genetic disorder of DNA mismatch repair predisposing to glioblastoma (GBM) in the type 1 variant. We report the clinicopathological and genetic features of 3 gliomas in TS type 1 patients. Three cases were reviewed from our clinical and pathology files at Washington University with ...

We present the case of a 69-year old patient with a contrast enhancing, partially cystic lesion of the right temporal lobe, involving the ventricle and extending into the occipital lobe. The resected tumor showed histological features of a glioblastoma with granular cell astrocytoma features, lacking amplification of the EGFR gene ...

Cases of primary colorectal signet-ring cell carcinoma metastatic to the tonsil are extremely rare. To the best of our knowledge, only 4 such cases have been previously reported in the literature. We report a new case in a 76-year-old white woman. She was treated with chemotherapy, but her disease continued ...

Granulomatous mycosis fungoides (GMF) represents an uncommon variant of mycosis fungoides (MF) characterized by the presence of an associated granulomatous reaction. Most cases of GMF are CD4 positive, and CD8 positive cases are extremely rare. Herein, we report a case of CD8-positive GMF. A 75-year-old Japanese woman presented with brownish ...

Clear cell hidradenoma is an uncommon benign skin appendageal tumor that typically involves the dermal layer of the head, face, and extremities. The breast is a rare site for this lesion, with only two documented cases, which were determined based on mammogram and sonogram findings. We present a case of ...

Patients with thymoma associated with pure red cell aplasia (PRCA) are rare and the relevant literature is limited. Prognostic evaluations into the appropriate surgical management of this rare coincidence of diseases are controversial, with some authors believing that none of their cases experienced remission of anemia after thymectomy. Despite the ...

Abstract Fasciitis-like proliferations are said to be uncommon in the viscera; a fasciitis-like pattern of gallbladder injury may not be rare, but to our knowledge it has not been explicitly reported as such in any age group. Osseous metaplasia, or heterotopic bone, in the gallbladder is rare and has not ...

Endometrial adenocarcinoma presenting with deep venous thrombosis is an exceptional event more typical of extra-mullerian primary tumors. Metastases to the spleen are also unusual in this setting. In addition, primary endometrial adenocarcinoma with signet-ring cell features has been reported only once. This study describes a case of primary endometrial carcinoma ...

Sclerosing perineurioma is an extraneural soft tissue lesion that has been reported in the extremities of young adults. It is composed of oval epithelioid or plump spindled cells scattered to form ill-defined fascicles in a storiform, whorled, or trabecular pattern and dermal sclerosis represented by thickened collagen bundles in a ...

BACKGROUND: The FocalPoint Slide Profiler is an automated cervical cytology screening system that is approved for primary screening. It identifies up to 25% of slides as requiring No Further Review. However, few studies have evaluated FocalPoint performance with glandular abnormalities. METHODS: Sixty-six SurePath Papanicolaou (Pap) tests with a diagnosis of ...

OBJECTIVES: The central giant-cell reparative granuloma has been defined as a localized benign but sometimes aggressive osteolytic proliferation consisting of fibrous tissue with hemorrhage and hemosiderin deposits, presence of osteoclast-like giant cells and reactive bone formation. It is a benign lesion usually appears as solitary, multilocular, radiolucencies, located in the ...

Langerhans cell histiocytosis is a rare neoplasm that belongs to the histiocytic and dendritic cell neoplasm group according to the 2008 WHO classification. It has been defined as neoplastic proliferation of Langerhans cells that express CD1a and S-100 proteins and have Birbeck granules on the ultrastructural examination. Clinical presentation and ...

The epithelioid hemangioendothelioma (EH) is an uncommon angiocentric neoplasm of borderline or intermediate malignant potential, between the hemangioma and conventional angiosarcoma. It is characterized by the proliferation of endothelial cells with epithelioid or histiocit?ide morphology with vacuolated cytoplasm and occasional eosinophilic spindle cells. Shows potential for local recurrence as well ...

Langerhans cell histiocytosis (LCH), previously known as histiocytosis X, is a rare, proliferative disorder in which the accumulation of pathologic Langerhans cells leads to local tissue infiltration and destruction. The incidence of LCH is estimated to be one case per 200,000 children per year. The role of the dentist is ...

OBJECTIVES: To report the clinicopathologic findings of a pregnant woman with Stage IV adenocarcinoma of the lung with placental metastasis. MATERIALS AND METHODS: Medical records review. RESULTS: A 31-year-old G(2)P(1001) woman was diagnosed with Stage IV metastatic adenocarcinoma of the lung. At 34 weeks' and 2 days' gestation, she went ...

Inverted T waves are frequently seen in electrocardiograms (ECGs) and may represent a myriad of pathologies or nonspecific change. However, deep (giant) inverted T waves are only seen in a few clinical conditions. Presence of giant T waves should generally prompt investigations for apical (Yamaguchi) variant of hypertrophic cardiomyopathy, raised ...

Sclerosing cholangitis is a rare complication of Langerhans cell histiocytosis in children which can result in liver failure. This combination is even rarer in adults. We report a 65-year-old female who developed sclerosing cholangitis 4 years after the diagnosis of Langerhans cell histiocytosis. Sclerosing cholangitis caused by Langerhans cell histiocytosis is ...

Medical literature detailing muscular complications of sickle cell anemia is sparse and limited to a few case-reports. Features consistent with myositis and myonecrosis are often overlooked and patients are inadequately treated, leading to unforeseen complications. We report an interesting case of sickle cell myonecrosis and review the existing literature on ...

Endometriosis is described as the presence of functioning endometrial tissue outside the uterine cavity. Scar endometriosis is a rare disease, and is difficult to diagnose. The symptoms are nonspecific, typically involving abdominal wall pain at the incision site at the time of menstruation. It commonly follows obstetrical and gynecological surgeries. ...

The radiological diagnosis of osteolytic lesions of the long bones in pediatric population constitutes a challenge when the case history and clinical data are uncharacteristic. We believe that the description of few clinically and histologically proven cases to verify the existence of radiological signs useful for diagnosis may be of ...

We present a case of adenomyoepithlioma (AME) arising from the tonsil. AME is an uncommon tumor that typically arises in breast, but rarely found in salivary glands, lung, and skin. Its biological features have not been thoroughly characterized. Here we describe a primary AME originating from the tonsil. The pathologic ...

Primary adenocarcinoma is a rare and late complication following proctocolectomy and ileostomy for ulcerative colitis, familial adenomatous polyposis, Crohn's disease and multifocal colorectal cancer. We report a case of adenocarcinoma of the ileostomy occurring 48 years after proctocolectomy for ulcerative colitis. A review of the literature suggests that there are ...

The case of adenocarcinoma with human chorionic gonadtropin (HCG), primary in the male gallbladder, is extremely rare. A Medline search has shown only a few similar cases reported. We herein describe a case of primary gallbladder adenocarcinoma associated by ectopic HCG positive tumor cells in a 79-year-old male. Pathological examination ...

Basal cell adenocarcinoma accounts for approximately 1.6% of all salivary gland neoplasms. In this report, we describe our experiences of treatment for BCAC with carbon ion radiotherapy in our institution. Case records of 6 patients with diagnosis of basal cell adenocarcinoma of the head and neck, who were treated by ...

Endosalpingiosis describes the ectopic growth of Fallopian tube epithelium. Pathology confirms the presence of a tube-like epithelium containing three types of cells: ciliated, columnar cells; non-ciliated, columnar secretory mucous cells; and intercalary cells.We report the case of a woman with umbilical endosalpingiosis and examine the nature and characteristics of cutaneous ...

Objectives: The purpose of this study was to describe the type of toxin ingested, clinical presentation and outcome of dogs with status epilepticus (SE) due to acute poisoning presented to a large referral veterinary hospital. Materials and methods: Retrospective case series. Medical records of all dogs suffering from SE were ...

Strongyloidiasis is an opportunistic infection which may result in a fatal hyperinfection syndrome in immunocompromised patients. We report the case of a pulmonary infection with Strongyloides stercoralis in a 61-year-old male with a history of a long-term administration of corticosteroids. Cytologic examination of a bronchial washing specimen, processed both as ...

Eosinophilic/T-cell chorionic vasculitis is a rare form of chorionic vasculitis. A multifocal form of eosinophilic/T-cell chorionic vasculitis is presented involving chorionic vessels radiating away from the amniotic fluid, without associated chorioamnionitis. There was, however, an associated fetal demise.

Progressive multifocal leukoencephalopathy (PML) is a deadly demyelinating disease of the brain, caused by reactivation of the polyomavirus JC (JCV). PML has classically been described in individuals with profound cellular immunosuppression such as patients with AIDS, haematological malignancies, organ transplant recipients or those treated with immunosuppressive or immunomodulatory medications for ...

Giant cell tumor (GCT) of bone arising from a phalanx of a finger is extremely rare. We report two cases of GCT arising from a phalanx of a finger. One case presented with recurrence following the amputation of the left ring finger (performed elsewhere). He was treated successfully with ray ...

Hyalinizing clear cell carcinoma (HCCC) is an extremely rare neoplasm with a female predominance, composed of nests of monomorphic clear cells within a hyaline stroma. This tumor often follows an indolent course and treatment includes wide surgical excision with or without adjuvant radiotherapy. We report eight cases of HCCC identified ...

INTRODUCTION: Granular cell tumor was first described by Abrikossoff in 1926. Over the years several cases of this neoplasm have been reported, with a variety of localizations. We here report a case of perianal granular cell tumor and discuss its histogenesis and its relevance to clinical practice. METHODS: The clinical ...

Introduced into clinical practice in the 1960s, the analgesic fentanyl is 100 times more potent than morphine. Various methods of administration exist including the transdermal Duragesic patch system, widely used in chronic pain and palliative care settings. Numerous, often imaginative methods of abuse of fentanyl patches have been reported; the ...

Iron overload in female patients with sickle cell disease (SCD) has been reported to result in gonadal dysfunction. To date there has been no report in the literature of ovarian sickling being a reason for gonadodysgenesis (premature ovarian failure [POF]) in women. This case report describes POF in a woman ...

One case of recurrent multifocal central giant cell granulomas (CGCG) is presented. Initially, the lesions presented concurrently in the maxilla and mandible with subsequent recurrence in the mandible. Now, two recurrences are seen in the maxillary sinus and ethmoid region. The literature regarding multifocal CGCG is reviewed.

Pleomorphic stromal giant cells are occasionally found as an incidental finding in breast tissue but are only rarely seen in fibroepithelial lesions. In this report, we describe 4 fibroadenoma-like lesions of the breast with pleomorphic stromal giant cells. Two cases had focal stromal hypercellularity, one of which was with architectural ...

We report a case in which a vaginal adenocarcinoma was discovered in a 67-year-old woman 16 years after hysterectomy for cervical adenocarcinoma in situ. Both the vaginal and cervical lesions exhibited morphologic and immunohistochemical (CDX2-positive) features of intestinal differentiation. Linear array human papillomavirus genotyping demonstrated the vaginal adenocarcinoma to contain ...

Chondroblastic osteosarcoma accounts for about 25% of all cases of osteosarcoma, which is the most common primary malignancy of the skeleton. Currently, only a few cases of chondroblastic osteosarcoma have been reported to involve the bones of the foot. In this report, we describe the previously unreported occurrence of chondroblastic ...

Follicular dendritic cell tumor (FDCT) is an uncommon neoplasm that typically presents as a slow-growing, painless mass without systemic symptoms. Histologically, FDCT is characterized as a proliferation of spindle to ovoid cells having plump eosinophilic cytoplasm with indistinct borders and nuclei with vesicular or granular chromatin and small distinct nucleoli. ...

In 1998 Tazawa and Tsutsumi described for the first time a case of Helicobacter pylori (HP)-related gastritis characterized by the presence of a conspicuous plasma cell infiltrate with Russell bodies, and coined the term Russell body gastritis (RBG). A 59-year-old HIV-positive man complaining of recurrent epigastric pain underwent an upper ...

Cartilaginous metaplasia in ependymomas is an uncommon phenomenon and is hypothesized to be due to metaplasia of the mesenchymal supportive elements or arising from the neoplastic glial cells. Most of the previous cases reported have occurred in children less than 10 years of age. The present report discusses an unusual ...