Primary Cutaneous Rhabdoid Squamous Cell Carcinoma: A Case Report and Review of Molecular Features.

We present a rare case of rhabdoid squamous cell carcinoma (RSCC) on the scalp of a non-immunosuppressed male patient in his late 60s. This aggressive variant of squamous cell carcinoma (SCC) is characterized by tumor cells with eccentrically located nuclei and abundant eosinophilic cytoplasm, as observed on histopathological examination. While rhabdoid morphology has been reported in various anatomical sites, its occurrence in primary cutaneous tumors is exceptionally uncommon, with fewer than 10 cases documented to date.

The occurrence of opportunistic pathogenic Pseudomonas species in bathing ponds.

The aim of this study is to evaluate opportunistic pathogenic bacteria of the genus Pseudomonas in anthropogenically impacted bathing waters, primarily focusing on bathing ponds. The findings include the detection of these bacteria, their susceptibility to selected antibiotics, and the determination of the Exotoxin A (exoA) gene using PCR method. P.

Myxofibrosarcoma-Like Spindle Cell Squamous Cell Carcinoma of the Scalp: A Rare Mimic.

We report a challenging case of a man in his mid-70s diagnosed with a myxofibrosarcoma-like spindle cell squamous cell carcinoma (ML-SCC) on the scalp. This rare tumor shares cytologic features with spindle cell squamous cell carcinoma (SCC) with myxoid characteristics but also exhibits architectural elements typical of myxofibrosarcoma, making it nearly indistinguishable by routine light microscopic evaluation. Myxoid spindle cell carcinomas are exceptionally rare, and only one case of ML-SCC has been previously documented in the peer-reviewed medical literature.

A Unique Case of Cutaneous Schwannoma With Coexistent Masson's Hemangioma.

Schwannomas (SCHs) are benign neural tumors originating from Schwann cells of the peripheral nerve sheaths. These neoplasms typically exhibit hyalinized vessels with impaired vascular permeability; however, angioma-like features are rare. We report an intriguing case of a cutaneous SCH with unusual vascular changes in a 60-year-old female who presented with a tender nodular lesion on her lower back.