Figure 1. Right lower back lesion diagnosed as squamous cell carcinoma on previous shave biopsy with final excisional biopsy results of squamoid ductal eccrine carcinoma. DESCRIPTION An 89-year-old man presented with a rapidly progressing lesion of the right lower back initially diagnosed as squamous cell carcinoma (SCC). Excisional biopsy showed primary squamoid eccrine ductal carcinoma (SEDC)...

Primary malignant tumors of the renal pelvis are relatively rare. Urothelial carcinoma of renal pelvis accounts for 7% of all renal neoplasms, with Squamous Cell Carcinoma (SCC) forming a very small percentage of these cases. Urothelial and SCC of renal pelvis is still a rarer entity. This malignancy of the renal pelvis lacks the characteristic presentation of common renal cell carcinoma and us...

Squamous cell carcinoma (SCC) of the stomach is a rare entity. There are several theories regarding the development of this tumor, but its pathogenesis remains obscure. Fewer than 100 cases of primary SCC of the stomach have been published in the literature. Due to advanced stage at the time of diagnosis in most of these cases, the prognosis is generally poor. In the case presented here, endosc...

C-SCC: cutaneous squamous cell carcinoma MMS: Mohs micrographic surgery SCCs: squamous cell carcinomas INTRODUCTION The increased incidence of aggressive cutaneous squamous cell carcinoma (C-SCC) is well known in the immunosuppressed, solid organ transplant population. Heart and lung transplant recipients are particularly at risk for aggressive C-SCC development given their more intensive immun...

Squamous cell carcinoma (SCC) of urinary tract is a rarely encountered tumor. The incidence of this tumor is 1.4 per cent of all renal malignancies (1). We present a case of 52 years male with squamous cell carcinoma of renal pelvis, presenting as chronic pyelonephritis transforming the kidney into non-functioning multicystic cavitatory mass without any renal calculi. The case highlights the ra...

Four sets of cell lines (UM-SCC.14A, -14B, and -14C; UM-SCC-17A and .17B; UM-SCC.81A and -SiB; and UM-SCC.83A and -83B), estab lished from primary and metastatic or locally recurrent tumors from four patients with squamous cell carcinoma of the head and neck, were exam med for loss of heterozygosity (LOH) on chromosome lSq. Metastatic or recurrent cell lines from all four exhibited 18q LOH. UM-...

Although nevus sebaceous (NS) is known to develop various types of secondary neoplasms, it rarely causes carcinoma and only fifteen cases of secondary squamous cell carcinoma (SCC) have been reported. We report a rare variant of SCC (acantholytic type) arising in nevus sebaceus.

Gallbladder (GB) carcinomas are adenocarcinomas (AC) in the majority of cases. Adenosquamous carcinoma (ASC) and pure squamous cell carcinoma (SCC) of the gallbladder are rarely encountered and comprise 1-3% of gallbladder cancer cases.  Pure squamous cell carcinoma of the gallbladder is rarer with less than 1% of the incidence. Most of the published literature is based on case reports and case...

Basaloid squamous cell carcinoma (BSCC) is an aggressive, high-grade, variant of squamous cell carcinoma (SCC), which is uncommon in the oral cavity but slightly more common in the oropharynx. We present two cases of BSCC, one arising in the floor of the mouth and the other arising on the lateral border of the tongue. The diagnosis of this subtype of SCC is important owing to its particular beh...

Primary squamous cell carcinoma (SCC) of renal pelvis is a rare neoplasm. A 75-year old male presented with history of chronic dull aching pain in left flank region for last 10-years with history of left pyelolithotomy about 30-years back. After proper workup, large calculus with heterogeneous density mass detected in nonfunctioning left kidney. After radical nephrectomy, histopathological exam...