We describe five cases of tumoral @entity24178 @entity66 (CPPDCD) and discuss the clinical, radiological and pathological features. @entity1 included 4 males and 1 female, ranging in age from 49 to 70 years (median, 63 yrs). The wrist was involved in two @entity1 . The thumb, palmar aspect of the proximal phalanx of the middle finger and dorsum of the carpal bone of the hand were involved in one @entity1 each. In one @entity1 , a preoperative diagnosis of @entity511 had been made. Macroscopically, the lesion was a circumscribed whitish-gray mass with a more or less chalky appearance, measuring between 1.0 to 6.2 cm (median, 2.5 cm). Histologically, all five lesions contained areas of @entity730 and @entity4648 . The majority of crystals were rhomboid in shape, characteristic of CPPD, but some needle-shaped crystals were also identified, which resembled urate crystals. A review of the 54 reported cases of tumoral CPPDCD including our series indicated that they could be divided into two categories based on anatomic location: central (head and neck) type (n = 33) and distal (extremity) type (n = 21). @entity1 of these two groups were not different with respect to age and gender, but those with the central type often presented with a painful mass (15 @entity1 , 46%), or @entity16 (11 @entity1 , 33%). @entity1 with the distal type presented with a painless mass or swelling (12 @entity1 , 57%), but none had neurological signs, although 8 (38.1%) presented with acute attack similar to @entity210 . Tumoral CP-PDCD should be differentiated from @entity210 , @entity5 , and @entity5 .

Tumoral @entity24178 XXXX . A clinicopathologic analysis of five cases.

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients', 'patient'] @entity511 :: ('MESH:D002813', 'Disease') :: ['chondrosarcoma'] @entity66 :: ('MESH:D004194', 'Disease') :: ['crystal deposition disease'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumoral calcinosis', 'malignant or benign tumors'] @entity16 :: ('MESH:D009422', 'Disease') :: ['neurological disturbances'] @entity24178 :: ('MESH:D002131', 'Chemical') :: ['calcium pyrophosphate dihydrate'] @entity730 :: ('MESH:D002114', 'Disease') :: ['calcification with crystal deposits'] @entity4648 :: ('MESH:D008679', 'Disease') :: ['chondroid metaplasia'] @entity210 :: ('MESH:D006073', 'Disease') :: ['tophaceous gout']
@entity66 :: (MESH:D004194,Disease) :: ['crystal deposition disease']
