Conjunctival mucoepidermoid carcinoma is a very rare but highly aggressive conjunctival neoplasm with 42 previously reported cases. We report the case of a 56-year-old male with a left ocular surface squamous neoplasm, which was subsequently treated with excision and autoconjunctival graft. Histopathology of the operative specimen reported a low-grade conjunctival mucoepidermoid carcinoma, and ...

Primary gallbladder carcinoma is a malignant neoplasm with an incidence of 1.2 cases per 100 000 people each year. Its occurrence increases with age, particularly in women. It is the fifth most common cancer of the gastrointestinal tract, and the most common malignancy in the biliary tract. Adenocarcinoma is the most common type of gallbladder neoplasm whereas sarcomatoid carcinoma is rare with...

Spindle epithelial tumor with thymus-like element (SETTLE) is a rare malignant neoplasm of the thyroid, occurring predominantly in children, adolescents, and young adults. SETTLE usually presents itself as a thyroid mass, without metastases at diagnosis. It is believed to derive from branchial pouch or thymic remnant tissue showing primitive thymic differentiation. This article reports the clin...

Lipoblastomas are benign neoplasms of white adipose which usually occupy the trunk and limbs in pediatric patients. They can seldomly involve head neck, as a lateral cervical mass. Magnetic resonance imaging is most useful modality for identifying these lesions. Treatment involves complete excision, patients followed with serial exams and/or recurrence more common neck. Here we present an excee...

Introduction. Nora's lesion or bizarre parosteal osteochondromatous proliferation is a rare benign bone neoplasm that usually localized on the small bones of hands. The paper was aimed at clinical, morphological and structural analysis case, second registered in Ukraine. Case report. A 42-year-old male patient presented with complaints painless swelling area distal 4th metacarpal limited mobili...

Counting the number of ways to tile an m × n rectangle with squares of various sizes is a traditional combinatorial problem. In this paper, we demonstrate a simple method for constructing the recurrence relations satisfied by the solutions to these problems. This method also generalizes to similar problems that have not been previously considered, including three dimensional “tilings”. We are a...

In this paper the notion of nite singularities of diierence operators is introduced. The study of singularities has many applications. One application will be given, a new method for computing hypergeometric solutions of diierence equations.

In this article, we propose a novel method for detecting environmental changes in the reinforcement learning. The proposed method utilizes recurrence plots of state transitions of the system, and quantifies changes of the recurrence plot by a texture analysis. It is shown that the proposed method is effective to detect environmental changes.

Superficial acral fibromyxoma are rare soft tissue tumors predominantly involving hands and feet of adults. There are only a few reported cases of this benign neoplasm, but no FNAC diagnosis of this tumor is reported in the literature. A Forty-eight year old female presented with a 5 x 3.5 cm globular, firm swelling over the right fifth toe. Fine needle aspiration cytology (FNAC) of the lesion...